Sample records for numerous naval propulsor

  1. Naval ship propulsion and electric power systems selection for optimal fuel consumption

    E-Print Network [OSTI]

    Sarris, Emmanouil

    2011-01-01T23:59:59.000Z

    Although propulsion and electric power systems selection is an important part of naval ship design, respective decisions often have to be made without detailed ship knowledge (resistance, propulsors, etc.). Propulsion and ...

  2. Naval Civil Engineering Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Naval Civil Engineering Laboratory Personnel from the Power Systems Department have participated in numerous distribution equipment research, development, demonstration, testing,...

  3. Ultra-short nacelles for low fan pressure ratio propulsors

    E-Print Network [OSTI]

    Peters, Andreas, Ph. D. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    This thesis addresses the uncharted inlet and nacelle design space for low pressure ratio fans for advanced aeroengines. A key feature in low fan pressure ratio (FPR) propulsors with short inlets and nacelles is the increased ...

  4. Steady and unsteady dynamics of an azimuthing podded propulsor related to vehicle maneuvering

    E-Print Network [OSTI]

    Stettler, Jeffrey W. (Jeffrey Wayne)

    2004-01-01T23:59:59.000Z

    While the implementation of azimuthing propulsors powered by internal electric motors (often called "podded propulsors") into the commercial ship market has been swift, the understanding of their hydrodynamics through ...

  5. Naval Engineering A National Naval Obligation

    E-Print Network [OSTI]

    Chryssostomidis, Chryssostomos

    2000-05-16T23:59:59.000Z

    As part of its national obligations, ONR must ensure US world leadership in those unique technology areas that insure naval superiority. ONR accomplishes this mission through research, recruitment and education, maintaining ...

  6. Naval petroleum reserves

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    A hearing to consider two bills (S. 1744 and H.R. 3023) authorizing appropriations to operate the Naval Petroleum Reserve during fiscal 1982 brought testimony from officials of the Departments of Energy and Defense; from Chevron, USA; and from the Independent Refiners Association. Both bills authorize $228,463,000, of which $2.56 million will be available for the naval oil shale reserves and the remainder for the naval petroleum reserves. Chevron spokesmen noted that 8-11 months were required to reach full production at the Elk Hills site rather than the 60-90 days estimated by DOE, although both Chevron and the Independent Refiners Association of the west coast support the President's decision that it is in the national interest to continue the production of crude from naval petroleum reserves for the next three years.

  7. NPS Research supports Naval

    E-Print Network [OSTI]

    · Management Stanley Arthur Chair of Logistics· RADM George F. Wagner Chair in· Public Management Chair WAYNE E. MEYER INSTITUTE OF SYSTEMS ENGINEERING FY08 Naval Sponsored Program Research and Education: $36

  8. IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 32, NO. 3, JULY 2007 533 The Development of a Biologically Inspired Propulsor

    E-Print Network [OSTI]

    Lauder, George V.

    of a Biologically Inspired Propulsor for Unmanned Underwater Vehicles James Louis Tangorra, Member, IEEE, S. Naomi, pectoral fin, robotic, thrust, unmanned underwater vehicle (UUV). Manuscript received June 5, 2006; revised with right pectoral fin extended. I. INTRODUCTION THE use of unmanned undersea vehicles (UUVs) for underwater

  9. Naval Architecture and Marine Engineering

    E-Print Network [OSTI]

    Eustice, Ryan

    knowledge of mathematics, science, and engineering within naval architecture and marine engineering and marine engineering problems; an ability to apply basic knowledge in fluid mechanics, dynamicsNaval Architecture and Marine Engineering Undergraduate Program The University of Michigan #12

  10. BOARD OF ADVISORS TO THE PRESIDENTS OF THE NAVAL POSTGRADUATE SCHOOL & NAVAL WAR COLLEGE

    E-Print Network [OSTI]

    BOARD OF ADVISORS TO THE PRESIDENTS OF THE NAVAL POSTGRADUATE SCHOOL & NAVAL WAR COLLEGE October 17 attendance (choose all that apply): Naval Postgraduate School Subcommittee, 17 October 2012 Naval War College

  11. Naval Civil Engineering Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparency VisitSilver Toyota1Resourceloading newNaturalNatureNaval

  12. Fracture of aluminum naval structures

    E-Print Network [OSTI]

    Galanis, Konstantinos, 1970-

    2007-01-01T23:59:59.000Z

    Structural catastrophic failure of naval vessels due to extreme loads such as underwater or air explosion, high velocity impact (torpedoes), or hydrodynamic loads (high speed vessels) is primarily caused by fracture. ...

  13. Design and analysis of a permanent magnet generator for naval applications

    E-Print Network [OSTI]

    Rucker, Jonathan E. (Jonathan Estill)

    2005-01-01T23:59:59.000Z

    This paper discusses the electrical and magnetic design and analysis of a permanent magnet generation module for naval applications. Numerous design issues are addressed and several issues are raised about the potential ...

  14. Distributed energy resources at naval base ventura county building 1512

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2004-01-01T23:59:59.000Z

    Resources at Naval Base Ventura Country Building 1512 7.August 2001. “Naval Base Ventura County Standby GeneratorEnergy Resources at Naval Base Ventura Country Building 1512

  15. Naval Petroleum Reserves | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Naval Petroleum Reserves For much of the 20th century, the Naval Petroleum and Oil Shale Reserves served as a contingency source of fuel for the Nation's military. All that...

  16. Naval Petroleum Reserve No. 1

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    For several years, the administration has proposed selling the government's ownership interest in the Naval Petroleum Reserves, arguing that it would help reduce the federal budget deficit. The administration's latest proposal calls for the sale of reserves in fiscal year 1990. DOE estimates that if the reserves are sold in 1990, proceeds would amount to about $3.4 billion. The Naval Petroleum Reserve at Elk Hills, California, is the largest of the reserves. This report has reviewed and analyzed the new reserve data and found that DOE's reserve estimates for Elk Hills are still neither accurate nor up-to-date.

  17. NAVAL POSTGRADUAm SCHOOL Monterey, California

    E-Print Network [OSTI]

    NAVAL POSTGRADUAm SCHOOL Monterey, California A WHOLESALE LEVEL CONSUMABLE ITEM DEMAND PATI TYPE AND DATES COVERED Master's Thesis 4. TITLE AND SUBTITLE A WHOLESALE LEVEL CONSUMABLE DEMAND is unlimited. A Wholesale Level Consumable Item Inventory Model for Non-Stationary Demand Patterns Glenn C

  18. Numerical

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 Federal RegisterImplementation andNumerical simulations

  19. The form, function, and interrelationships of naval rams: a study of naval rams from antiquity

    E-Print Network [OSTI]

    Pridemore, Matthew Garnett

    1996-01-01T23:59:59.000Z

    The discovery of several naval rams from sites around the Mediterranean has given scholars a brief glimpse of one of the most widely used naval weapons of the ancient world. Examining these physical examples provides information that is unavailable...

  20. andreyev bay naval: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    led by my Marine Corps staff and battalion New Mexico, University of 2 Naval Architecture Marine Engineering Engineering Websites Summary: Naval Architecture Marine...

  1. Naval Petroleum Reserve No. 3 Disposition Decision Analysis and...

    Energy Savers [EERE]

    Naval Petroleum Reserve No. 3 Disposition Decision Analysis and Timeline Naval Petroleum Reserve No. 3 Disposition Decision Analysis and Timeline This Report to Congress provides a...

  2. Naval Research Laboratory Stennis Space Center

    E-Print Network [OSTI]

    Naval Research Laboratory Stennis Space Center Mississippi 39529 www7320.nrlssc.navy.mil/ Ocean Ocean prediction technology The Naval Research Laboratory (NRL) is the US Navy corporate laboratory, dedicated to addressing Navy unique problems and enabling the Navy to operate efficiently and safely. Unique

  3. Comparative naval architecture analysis of diesel submarines

    E-Print Network [OSTI]

    Torkelson, Kai Oscar

    2005-01-01T23:59:59.000Z

    Many comparative naval architecture analyses of surface ships have been performed, but few published comparative analyses of submarines exist. Of the several design concept papers, reports and studies that have been written ...

  4. Nuclear Naval Propulsion: A Feasible Proliferation Pathway?

    SciTech Connect (OSTI)

    Swift, Alicia L.

    2014-01-31T23:59:59.000Z

    There is no better time than now to close the loophole in Article IV of the Nuclear Non-proliferation Treaty (NPT) that excludes military uses of fissile material from nuclear safeguards. Several countries have declared their intention to pursue and develop naval reactor technology, including Argentina, Brazil, Iran, and Pakistan, while other countries such as China, India, Russia, and the United States are expanding their capabilities. With only a minority of countries using low enriched uranium (LEU) fuel in their naval reactors, it is possible that a state could produce highly enriched uranium (HEU) under the guise of a nuclear navy while actually stockpiling the material for a nuclear weapon program. This paper examines the likelihood that non-nuclear weapon states exploit the loophole to break out from the NPT and also the regional ramifications of deterrence and regional stability of expanding naval forces. Possible solutions to close the loophole are discussed, including expanding the scope of the Fissile Material Cut-off Treaty, employing LEU fuel instead of HEU fuel in naval reactors, amending the NPT, creating an export control regime for naval nuclear reactors, and forming individual naval reactor safeguards agreements.

  5. This document was downloaded on May 22, 2013 at 14:24:38 Author(s) Naval Postgraduate School (U.S.)

    E-Print Network [OSTI]

    state-of- the-art laboratories, numerous academic buildings, a library, government housing and impressive recreational facilities. The Students Nearly 2,000 students attend the Naval Postgraduate School Engineering, Applied Mathematics, Astronautical Engineering, Computer Science, Electrical Engineering

  6. U.S. NAVAL ACADEMY COMPUTER SCIENCE DEPARTMENT

    E-Print Network [OSTI]

    Crabbe, Frederick

    U.S. NAVAL ACADEMY COMPUTER SCIENCE DEPARTMENT TECHNICAL REPORT Mobile Vehicle Teleoperated Over Akin and Frederick L. Crabbe U.S. Naval Academy Computer Science Department 572M Holloway Rd, Stop 9F

  7. EFFECTS OF NAVAL ORDNANCE TESTS ON THE PATUXENT RIVER FISHERY

    E-Print Network [OSTI]

    EFFECTS OF NAVAL ORDNANCE TESTS ON THE PATUXENT RIVER FISHERY Marine Biological Laboratory t, T "B and Wildlife Service, John L. Farley, Director EFFECTS OF NAVAL ORDNANCE TESTS ON THE PATUXENT RIVER FISHERY of Medicine, Univ. of Puerto Rico. #12;#12;EFFECTS OF NAVAL ORDNANCE TESTS ON THE PATUXENT RIVER FISHERY

  8. DEPARTMENT OF THE NAVY NAVAL POSTGRADUATE SCHOOL

    E-Print Network [OSTI]

    DEPARTMENT OF THE NAVY NAVAL POSTGRADUATE SCHOOL 1 UNIVERSITY CIR MONTEREY, CA 93943-5000 IN REPLY FOR ADMINISTRATION AND MANAGEMENT OF NAVY FULLY-FUNDED GRADUATE EDUCATION PROGRAMS AT CIVILIAN INSTITUTIONS guidance for the U.S. Navy's fully funded graduate education programs at Civilian Institutions (CIVINS

  9. Yangtze Patrol: American Naval Forces in China

    E-Print Network [OSTI]

    Yangtze Patrol: American Naval Forces in China A Selected, Partially-Annotated Bibliography literature of the United States Navy in China. mvh #12;"Like Chimneys in Summer" The thousands of men who served on the China Station before World War II have been all but forgotten, except in the mythology

  10. Russian naval bases due commercial development

    SciTech Connect (OSTI)

    Not Available

    1992-04-27T23:59:59.000Z

    Tecnogrid Group, New York, has signed a joint venture with the Russian Navy for commercial development of a wide range of sea dn land based assets owned by the former Soviet Navy. This paper reports that among other things, the venture aims for projects that will allow greater volumes of oil exports by revamping several naval bases. Tecnogrid's partner in the joint venture is AO Navicon, A Russian stock holding company that is the commercial arm of the Navy. Navicon has the sole right to commercially develop and deploy the Navy's assets. The Navy can no longer depend on the state for support, and Adm. Ig. Malhonin. With that in mind, the Navy is looking to become the leading force in moving toward a free market economy. Mahonin is Russia's second ranking naval official.

  11. The case for naval arms control

    SciTech Connect (OSTI)

    Fieldhouse, R. (Natural Resources Defense Council in Washington, DC (USA))

    1990-02-01T23:59:59.000Z

    Resurfacing at the Malta summit, the issue of naval arms control has once again become prominent as START and other potential treaties near completion. The time has come when we should begin discussing naval forces, said Soviet leader Mikhail Gorbachev, arguing that limiting only ground and air forces would not be equitable. The United States has opposed naval arms control - although some prominent U.S. officials, such as former chairman of the Joint Chiefs of Staff, Admiral William J. Crowe, Jr., have advocated some type of limitations. The official US position is that as a maritime power, the United States requires an unrestrained navy to fulfill its defense obligations. This issue of Arms Control Today presents here two views on this controversy. In the article, Richard Fieldhouse, senior research associate with the Nuclear Weapons Data Project, argues that there are indeed areas, such as controlling nuclear weapons on ships and confidence-building measures, that will enhance, not diminish, U.S. security. Following this, James R. Blaker, a former deputy assistant secretary of defense, presents a counter argument.

  12. DESIGN ANALYSIS FOR THE NAVAL SNF WASTE PACKAGE

    SciTech Connect (OSTI)

    T.L. Mitchell

    2000-05-31T23:59:59.000Z

    The purpose of this analysis is to demonstrate the design of the naval spent nuclear fuel (SNF) waste package (WP) using the Waste Package Department's (WPD) design methodologies and processes described in the ''Waste Package Design Methodology Report'' (CRWMS M&O [Civilian Radioactive Waste Management System Management and Operating Contractor] 2000b). The calculations that support the design of the naval SNF WP will be discussed; however, only a sub-set of such analyses will be presented and shall be limited to those identified in the ''Waste Package Design Sensitivity Report'' (CRWMS M&O 2000c). The objective of this analysis is to describe the naval SNF WP design method and to show that the design of the naval SNF WP complies with the ''Naval Spent Nuclear Fuel Disposal Container System Description Document'' (CRWMS M&O 1999a) and Interface Control Document (ICD) criteria for Site Recommendation. Additional criteria for the design of the naval SNF WP have been outlined in Section 6.2 of the ''Waste Package Design Sensitivity Report'' (CRWMS M&O 2000c). The scope of this analysis is restricted to the design of the naval long WP containing one naval long SNF canister. This WP is representative of the WPs that will contain both naval short SNF and naval long SNF canisters. The following items are included in the scope of this analysis: (1) Providing a general description of the applicable design criteria; (2) Describing the design methodology to be used; (3) Presenting the design of the naval SNF waste package; and (4) Showing compliance with all applicable design criteria. The intended use of this analysis is to support Site Recommendation reports and assist in the development of WPD drawings. Activities described in this analysis were conducted in accordance with the technical product development plan (TPDP) ''Design Analysis for the Naval SNF Waste Package (CRWMS M&O 2000a).

  13. NA 30 - Deputy Administrator for Naval Reactors | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 30 - Deputy Administrator for Naval Reactors NA 30 - Deputy Administrator for...

  14. Distributed energy resources at naval base ventura county building 1512

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2004-01-01T23:59:59.000Z

    by a DER system. Distributed Energy Resources at Naval BaseFebruary 2003. “Distributed Energy Resources in Practice: A2004. “Distributed Energy Resources Customer Adoption Model

  15. Naval Construction Battalion Center Gulfport- Mississippi Power Partnership Success Story

    Broader source: Energy.gov [DOE]

    Presentation covers the Naval Construction Battalion Center Gulfport - Mississippi Power Partnership success story given at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meeting...

  16. Distributed energy resources at naval base ventura county building 1512

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2004-01-01T23:59:59.000Z

    system. Distributed Energy Resources at Naval Base Ventura2003. “Distributed Energy Resources in Practice: A Case2004. “Distributed Energy Resources Customer Adoption Model

  17. 13.400 Introduction to Naval Architecture, Fall 2004

    E-Print Network [OSTI]

    Herbein, David

    Introduction to principles of naval architecture, ship geometry, hydrostatics, calculation and drawing of curves of form, intact and damaged stability, hull structure strength calculations and ship resistance. Projects ...

  18. Department of Energy, Office of Naval Petroleum & Oil Shale Reserves

    Broader source: Energy.gov (indexed) [DOE]

    Items that may be marked "disposrtron not Office of Naval Petroleum & Oil Shale Reserves approved" or "withdrawn" In column 10 4 Nameof Personwith whom to confer 5...

  19. Numerical Integration Numerical Summation

    E-Print Network [OSTI]

    Cohen, Henri

    Numerical Integration Numerical Summation Numerical Extrapolation Numerical Recipes for Multiprecision Computations #12;Numerical Integration Numerical Summation Numerical Extrapolation Multiprecision, integration, summation, extrapolation, evaluation of continued fractions, Euler products and sums, complete

  20. THE NAVAL RESEARCH ENTERPRISE AND PLASMA PHYSICS RESEARCH AT THE NAVAL RESEARCH LAB

    E-Print Network [OSTI]

    Shyy, Wei

    , to create Xray simulators for testing nuclear weapons effects, and to understand high altitude nuclear ex and space plasmas, intense electron and ion beams and photon sources, atomic physics, pulsed power also participates in two Innovative Naval Prototype programs: the electromagnetic railgun and the free

  1. Naval Research Laboratory Technology Marketing Summaries - Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011 at 2:00 P.M.Innovation Portal Naval

  2. Naval Reactors | Y-12 National Security Complex

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenterDioxide CaptureSeeNUCLEAR SCIENCENationalNaval Reactors

  3. Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis

    E-Print Network [OSTI]

    Bailey, Owen C.; Marnay, Chris

    2005-01-01T23:59:59.000Z

    Resources at Naval Base Ventura Country Building 1512 6.Resources at Navy Base Ventura County Building 1512. ”August 2001. “Naval Base Ventura County Standby Generator

  4. Peter C. Chu Naval Ocean Analysis and Prediction Laboratory,

    E-Print Network [OSTI]

    Chu, Peter C.

    , such as using the wind tunnel, we present a new efficient and low cost method to determine the drag, liftPeter C. Chu Chenwu Fan Naval Ocean Analysis and Prediction Laboratory, Naval Postgraduate School, and no fin and no-tail section) conducted at the SRI test site. The cost of this method is much lower than

  5. Radiological survey of the Mare Island Naval Shipyard, Alameda Naval Air Station, and Hunters Point Shipyard

    SciTech Connect (OSTI)

    Semler, M.O.; Blanchard, R.L. (Environmental Protection Agency, Montgomery, AL (USA). Eastern Environmental Radiation Facility)

    1989-06-01T23:59:59.000Z

    Since 1963, the Eastern Environmental Radiation Facility (EERF), US Environmental Protection Agency (USEPA), in cooperation with the US Naval Sea Systems Command (NAVSEA) has surveyed facilities serving nuclear-powered warships on the Atlantic and Pacific coasts and the Gulf of Mexico. These surveys assess whether the operation of nuclear-powered warships, during construction, maintenance, overhaul, or refueling, have created elevated levels of radioactivity. The surveys emphasize sampling those areas and pathways that could expose the public. In 1984, NAVSEA requested that EPA survey all active facilities serving nuclear-powered warships over the next three years. This report contains the results of surveys conducted at Naval facilities located at Mare Island, Alameda, and Hunters Point in the San Francisco region. The locations of these facilities are shown. 3 refs., 4 figs., 3 tabs.

  6. LCEs for Naval Reactor Benchmark Calculations

    SciTech Connect (OSTI)

    W.J. Anderson

    1999-07-19T23:59:59.000Z

    The purpose of this engineering calculation is to document the MCNP4B2LV evaluations of Laboratory Critical Experiments (LCEs) performed as part of the Disposal Criticality Analysis Methodology program. LCE evaluations documented in this report were performed for 22 different cases with varied design parameters. Some of these LCEs (10) are documented in existing references (Ref. 7.1 and 7.2), but were re-run for this calculation file using more neutron histories. The objective of this analysis is to quantify the MCNP4B2LV code system's ability to accurately calculate the effective neutron multiplication factor (k{sub eff}) for various critical configurations. These LCE evaluations support the development and validation of the neutronics methodology used for criticality analyses involving Naval reactor spent nuclear fuel in a geologic repository.

  7. Sandia National Laboratories: Carderock Naval Surface War-fare...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Carderock Naval Surface War-fare Center Inter-Agency Agreement Signed between DOE's Wind and Water Power Program and Carderock On December 3, 2014, in Energy, News, News & Events,...

  8. Radiological surveys of Naval facilities on Puget Sound. Final report

    SciTech Connect (OSTI)

    Lloyd, V.D.; Blanchard, R.L.

    1989-06-01T23:59:59.000Z

    This report presents results of surveys conducted to assess levels of environmental radioactivity resulting from maintenance and operation of nuclear-powered warships at Puget Sound Naval Shipyard, Naval Submarine Base, Bangor, and the proposed Carrier Battle Group Homeporting Site in northwestern Washington. The purpose of the survey was to determine if activities related to nuclear-powered warships resulted in release of radionuclides that may contribute to significant population exposure or contamination of the environment.

  9. Tiger Team Assessment of the Naval Petroleum Reserves in California

    SciTech Connect (OSTI)

    Not Available

    1991-12-01T23:59:59.000Z

    This report documents the Tiger Team Assessment of the Naval Petroleum Reserves in California (NPRC) which consists of Naval Petroleum Reserve Number 1 (NPR-1), referred to as the Elk Hills oil field and Naval Petroleum Reserve Number 2 (NPR-2), referred to as the Buena Vista oil field, each located near Bakersfield, California. The Tiger Team Assessment was conducted from November 12 to December 13, 1991, under the auspices of DOE's Office of Special Projects (OSP) under the Assistant Secretary for Environment, Safety and Health (EH). The assessment was comprehensive, encompassing environmental, safety, and health (ES H), and quality assurance (OA) disciplines; site remediation; facilities management; and waste management operations. Compliance with applicable Federal, State of California, and local regulations; applicable DOE Orders; best management practices; and internal NPRC requirements was assessed. In addition, an evaluation of the adequacy and effectiveness of DOE/NPRC, CUSA, and BPOI management of the ES H/QA programs was conducted.

  10. Tiger Team Assessment of the Naval Petroleum Reserves in California

    SciTech Connect (OSTI)

    Not Available

    1991-12-01T23:59:59.000Z

    This report documents the Tiger Team Assessment of the Naval Petroleum Reserves in California (NPRC) which consists of Naval Petroleum Reserve Number 1 (NPR-1), referred to as the Elk Hills oil field and Naval Petroleum Reserve Number 2 (NPR-2), referred to as the Buena Vista oil field, each located near Bakersfield, California. The Tiger Team Assessment was conducted from November 12 to December 13, 1991, under the auspices of DOE`s Office of Special Projects (OSP) under the Assistant Secretary for Environment, Safety and Health (EH). The assessment was comprehensive, encompassing environmental, safety, and health (ES&H), and quality assurance (OA) disciplines; site remediation; facilities management; and waste management operations. Compliance with applicable Federal, State of California, and local regulations; applicable DOE Orders; best management practices; and internal NPRC requirements was assessed. In addition, an evaluation of the adequacy and effectiveness of DOE/NPRC, CUSA, and BPOI management of the ES&H/QA programs was conducted.

  11. Carl Vinson and pre-war naval legislation 1932-1940

    E-Print Network [OSTI]

    Svonavec, Stephen Charles

    1994-01-01T23:59:59.000Z

    , House and Senate debates, and behind the scenes conferences between Vinson and officials of the Navy Department and Roosevelt Administration which helped decide the course of naval expansion. It shows that while many people contributed passing naval...

  12. Reactor Safety Planning for Prometheus Project, for Naval Reactors Information

    SciTech Connect (OSTI)

    P. Delmolino

    2005-05-06T23:59:59.000Z

    The purpose of this letter is to submit to Naval Reactors the initial plan for the Prometheus project Reactor Safety work. The Prometheus project is currently developing plans for cold physics experiments and reactor prototype tests. These tests and facilities may require safety analysis and siting support. In addition to the ground facilities, the flight reactor units will require unique analyses to evaluate the risk to the public from normal operations and credible accident conditions. This letter outlines major safety documents that will be submitted with estimated deliverable dates. Included in this planning is the reactor servicing documentation and shipping analysis that will be submitted to Naval Reactors.

  13. Page 1 of 16 Naval Power and Globalization

    E-Print Network [OSTI]

    Aronov, Boris

    years China has followed the same path as its predecessor modernizing Asian neighbors. It has committed size and the scale, China is affecting both the regional and worldwide economic balances of power and India are influenced by the potential for China's increasing role as both an economic and naval power

  14. Colleagues and Friends of NPS: Recently the Naval Postgraduate

    E-Print Network [OSTI]

    @nps.edu Journalists Barbara Honegger MC2 (SW) Corey Truax MC3 Kellie Arakawa Photographers Javier Chagoya MC2 (SW) Corey Truax MC2 Kellie Arakawa Naval Postgraduate School President Daniel T. Oliver Provost Executive. Full versions of all articles are available at www.nps.edu #12;July 2008 Contents 7 New GSEAS Dean Dr

  15. artificial numerical length: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of propulsors and power plants. The selection process should be based on minimum life cycle cost. The power plants to be considered should include (but are not limited to)...

  16. Energy use baselining study for the National Naval Medical Center

    SciTech Connect (OSTI)

    Parker, G.B.; Halverson, M.A.

    1992-04-01T23:59:59.000Z

    This report provides an energy consumption profile for fourteen buildings at the National Naval Medical Center (NNMC) in Bethesda, Maryland. Recommendations are also made for viable energy efficiency projects funded with assistance from the servicing utility (Potomic Electric Power Company) in the form of rebates and incentives available in their Demand Side Management (DSM) program and through Shared Energy Savings (SES) projects. This report also provides estimates of costs and potential energy savings of the recommended projects.

  17. 1996 environmental monitoring report for the Naval Reactors Facility

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    The results of the radiological and nonradiological environmental monitoring programs for 1996 at the Naval Reactors Facility (NRF) are presented in this report. The NRF is located on the Idaho National Engineering and Environmental Laboratory and contains three naval reactor prototypes and the Expended Core Facility, which examines developmental nuclear fuel material samples, spent naval fuel, and irradiated reactor plant components/materials. The results obtained from the environmental monitoring programs verify that releases to the environment from operations at NRF were in accordance with state and federal regulations. Evaluation of the environmental data confirms that the operation of NRF continues to have no adverse effect on the quality of the environment or the health and safety of the general public. Furthermore, a conservative assessment of radiation exposure to the general public as a result of NRF operations demonstrated that the dose received by any member of the public was well below the most restrictive dose limits prescribed by the Environmental Protection Agency (EPA) and the Department of Energy (DOE).

  18. Naval Petroleum and Oil Shale Reserves annual report of operations for fiscal year 1996

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    During fiscal year 1996, the Department of Energy continued to operate Naval Petroleum Reserve No. 1 in California and Naval Petroleum Reserve No. 3 in Wyoming through its contractors. In addition, natural gas operations were conducted at Naval Petroleum Reserve No. 3. All productive acreage owned by the Government at Naval Petroleum Reserve No. 2 in California was produced under lease to private companies. The locations of all six Naval Petroleum and Oil Shale Reserves are shown in a figure. Under the Naval Petroleum Reserves Production Act of 1976, production was originally authorized for six years, and based on findings of national interest, the President was authorized to extend production in three-year increments. President Reagan exercised this authority three times (in 1981, 1984, and 1987) and President Bush authorized extended production once (in 1990). President Clinton exercised this authority in 1993 and again in October 1996; production is presently authorized through April 5, 2000. 4 figs. 30 tabs.

  19. 2012 Annual Planning Summary for Naval Reactors | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015ofDepartment ofCBFO-13-3322(EE) | Department1The ongoing andDepartment ofNaval

  20. DOE - Office of Legacy Management -- Westinghouse Naval Ordnance - MI 02

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -KWatertown Arsenal - MAWesternPlantNaval

  1. Naval Academy, Maryland: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall, Pennsylvania: EnergyEnergy InformationNatura Bio FuelsNautilusNaval

  2. United States Naval Surface Warfare Center | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmwelt Management AG UMaAG JumpEuropeUnitedUnitedLSC JumpNaval

  3. The 2006 Naval S&T Partnership Conference is presented by NDIA with technical support from ONR The Naval Postgraduate School's Role

    E-Print Network [OSTI]

    · Directed Energy Systems · Software Engineering · Combat System Physics · Electronic Warfare · SIGINT 1 Kenya 1 Nigeria 1 Rwanda 1 Senegal 1 Tanzania 1 Tunisia 4 11 #12;The 2006 Naval S&T Partnership

  4. a contaminant in decline: long-term tbt monitoring at a naval base in Western australia

    E-Print Network [OSTI]

    Burgman, Mark

    a contaminant in decline: long-term tbt monitoring at a naval base in Western australia john a planulatus) in and around the RAN naval base in Cockburn Sound, WesternAustralia, was initiated and continued, Australia. 2 Current address: ES Link Services Pty Ltd, PO Box 10, Castlemaine, VIC 3450, Australia. 3

  5. DEPARTMENT OF THE NAVY OFfiCE OF THE CHIEF OF NAVAL OPERATIONS

    E-Print Network [OSTI]

    DEPARTMENT OF THE NAVY OFfiCE OF THE CHIEF OF NAVAL OPERATIONS 2000 NAVY PENTAGON WASHINGTON, DC: Chief of Naval Operations Subj , NAVY PASSENGER TRAVEL Ref: (al 000 Di rective 5154.29 of 9 Marc h 1993 on the management , execution, and funding of passenger travel for Navy personne l . This i n struction

  6. Naval Petroleum and Oil Shale Reserves. Annual report of operations, Fiscal year 1992

    SciTech Connect (OSTI)

    Not Available

    1992-12-31T23:59:59.000Z

    During fiscal year 1992, the reserves generated $473 million in revenues, a $181 million decrease from the fiscal year 1991 revenues, primarily due to significant decreases in oil and natural gas prices. Total costs were $200 million, resulting in net cash flow of $273 million, compared with $454 million in fiscal year 1991. From 1976 through fiscal year 1992, the Naval Petroleum and Oil Shale Reserves generated more than $15 billion in revenues and a net operating income after costs of $12.5 billion. In fiscal year 1992, production at the Naval Petroleum Reserves at maximum efficient rates yielded 26 million barrels of crude oil, 119 billion cubic feet of natural gas, and 164 million gallons of natural gas liquids. From April to November 1992, senior managers from the Naval Petroleum and Oil Shale Reserves held a series of three workshops in Boulder, Colorado, in order to build a comprehensive Strategic Plan as required by Secretary of Energy Notice 25A-91. Other highlights are presented for the following: Naval Petroleum Reserve No. 1--production achievements, crude oil shipments to the strategic petroleum reserve, horizontal drilling, shallow oil zone gas injection project, environment and safety, and vanpool program; Naval Petroleum Reserve No. 2--new management and operating contractor and exploration drilling; Naval Petroleum Reserve No. 3--steamflood; Naval Oil Shale Reserves--protection program; and Tiger Team environmental assessment of the Naval Petroleum and Oil Shale Reserves in Colorado, Utah, and Wyoming.

  7. Coastal Inundation due to Tide, Surge, Waves, and Sea Level Rise at Naval Station Norfolk

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Coastal Inundation due to Tide, Surge, Waves, and Sea Level Rise at Naval Station Norfolk Honghai of future sea level rise (SLR) scenarios and to evaluate the potential coastal inundation at Naval Station and sea level rise threats to coastal residents and coastal military facilities, the US Strategic

  8. Vitrification of contaminated soils from the Charleston Naval Complex

    SciTech Connect (OSTI)

    O'Connor, William K.; Turner, Paul C.; Brosnan, D.A. (CECM, CLemson Univ.); Mussro, R. (CECM, Clemson Univ.); Addison, G.W. (AJT Enterprises, Inc.); Jackson, V.B. (AJT Enterprises, Inc.); Teaster, G.F. (AJT Enterprises, Inc.)

    1998-05-01T23:59:59.000Z

    Demonstration melting tests for vitrifying chrome- and lead-bearing wastes from the Charleston Naval Complex, and organic-contaminated dredging spoils from the Ashley River (part of the greater Charleston Harbor), were conducted in a 3-phase AC, graphite electrode arc furnace located at the Albany Research Center (ALRC) of the U.S. Department of Energy (DOE). These tests were conducted in cooperation with the Center for Engineering Ceramic Manufacturing (CECM) of Clemson University, and AJT Enterprises, Inc., of Charleston, South Carolina, and were funded by the DOE Office of Environmental Restoration. The two waste streams were composited into separate furance feed mixtures by blending and agglomeration with readily available industrial minerals. Over 11,340 kg (25,000 lb) of feed was processed during the demonstration melting test, at feed rates up to 523 kg/h (1,150 lb/h). Continuous feeding and glass tapping was achieved for both the dredging spoils feed mixture and the naval complex mixture. Roughly 85% of all feed reported to the glass products, which readily passed the Environmental Protection Agency (EPA) Toxicity Characteristic Leaching Procedure (TCLP). ASTM aggregate tests using the vitrified aggregate in concrete and asphaltic cements indicated a potential for utilization of these materials in concentrations from 5-15% of the total aggregate, without negative impact on the mix. Toxicological tests performed on the galss products found that this material appears to be nonhazardous and its use is not likely to result in a public health risk.

  9. Habitat restoration on naval petroleum reserves in Kern County, California

    SciTech Connect (OSTI)

    Anderson, D.C. [EG& G Energy Measurements, Inc., Tupman, CA (United States)

    1990-12-31T23:59:59.000Z

    One of several task performed under contract to the Department of Energy (DOE) by EG & G Energy Measurements as part of the endangered species program is the restoration of abandoned well pads, roads, pipelines and soil borrow sites resulting from oil and gas production activities on Naval Petroleum Reserves in California (NPRC). Naval Petroleum Reserves in California is located in the Elk Hills approximately 30 miles southwest of Bakersfield in the rain shadow of the coastal range. Annual precipitation is approximately five inches. Reclamation of disturbed habitat on NPRC began with research plots and test trials in the early 1980s. Full scale reclamation began in 1985 and has continued through the 1989 planting season. Almost 700 acres have been revegetated, which represents over 1,200 sites distributed over the 47,250 acres of NPRC and averaging less than .75 acre in size. Monitoring of the sites began in 1987 to establish reclamation success and evaluate reclamation techniques. Reclamation objectives include the improvement of wildlife habitat for four endangered species living on NPRC, and the protection of the soils from wind and water erosion on the disturbed sites.

  10. Naval Petroleum Reserve No. 1 (Elk Hills): Supplemental environmental impact statement. Record of decision

    SciTech Connect (OSTI)

    Not Available

    1994-02-01T23:59:59.000Z

    Pursuant to the Council on Environmental Quality regulations, which implement the procedural provisions of the National Environmental Policy Act, and the US Department of Energy National Environmental Policy Act regulations, the Department of Energy, Office of Fossil Energy, is issuing a Record of Decision on the continued operation of Naval Petroleum Reserve No. 1, Kern County, California. The Department of Energy has decided to continue current operations at Naval Petroleum Reserve No. 1 and implement additional well drilling, facility development projects and other activities necessary for continued production of Naval Petroleum Reserve No. 1 in accordance with the requirements of the Naval Petroleum Reserves Production Act of 1976. The final Supplemental Environmental Impact Statement, entitled ``Petroleum Production at Maximum Efficient Rate, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California (DOE/SEIS-0158),`` was released on September 3, 1993.

  11. Naval Reactors Facility environmental monitoring report, calendar year 2001

    SciTech Connect (OSTI)

    NONE

    2002-12-31T23:59:59.000Z

    The results of the radiological and nonradiological environmental monitoring programs for 2001 at the Naval Reactors Facility are presented in this report. The results obtained from the environmental monitoring programs verify that releases to the environment from operations at NRF were in accordance with Federal and State regulations. Evaluation of the environmental data confirms that the operation of NRF continues to have no adverse effect on the quality of the environment or the health and safety of the general public. Furthermore, a conservative assessment of radiation exposure to the general public as a result of NRF operations demonstrated that the dose received by any member of the public was well below the most restrictive dose limits prescribed by the U. S. Environmental Protection Agency and the U. S. Department of Energy.

  12. Naval Reactors Facility Environmental Monitoring Report, Calendar Year 2003

    SciTech Connect (OSTI)

    None

    2003-12-31T23:59:59.000Z

    The results of the radiological and nonradiological environmental monitoring programs for 2003 at the Naval Reactors Facility are presented in this report. The results obtained from the environmental monitoring programs verify that releases to the environment from operations at NRF were in accordance with Federal and State regulations. Evaluation of the environmental data confirms that the operation of NRF continues to have no adverse effect on the quality of the environment or the health and safety of the general public. Furthermore, a conservative assessment of radiation exposure to the general public as a result of NRF operations demonstrated that the dose received by any member of the public was well below the most restrictive dose limits prescribed by the U.S. Environmental Protection Agency and the U.S. Department of Energy.

  13. 1997 environmental monitoring report for the Naval Reactors Facility

    SciTech Connect (OSTI)

    NONE

    1997-12-31T23:59:59.000Z

    The results of the radiological and nonradiological environmental monitoring programs for 1997 at the Naval Reactors Facility (NRF) are presented in this report. The results obtained from the environmental monitoring programs verify that releases to the environment from operations at NRF were in accordance with state and federal regulations. Evaluation of the environmental data confirms that the operation of NRF continues to have no adverse effect on the quality of the environment or the health and safety of the general public. Furthermore, a conservative assessment of radiation exposure to the general public as a result of NRF operations demonstrated that the dose received by any member of the public was well below the most restrictive dose limits prescribed by the Environmental Protection Agency (EPA) and the Department of Energy (DOE).

  14. Naval Petroleum Reserves: assessment of alternative operating strategies beyond 1982

    SciTech Connect (OSTI)

    Gsellman, L.R.; Mendis, M.S.; Rosenberg, J.I.

    1981-08-01T23:59:59.000Z

    Legislation authorizing production from two Naval Petroleum Reserves, i.e., NPR-1 (Elk Hills, California) and NPR-3 (Teapot Dome, Wyoming), expires in 1982. This paper presents an assessment of the trade-offs of extending production or returning to a shut-in status. Strategic, economic, and energy factors at the national, regional, and local levels are considered. The results of the study indicate that the only major local impact of shut-in will be on small refineries near NPR-1. At the national level, shut-in increases the size of the national petroleum reserve system. However, economic losses as measured by changes in the present value of real GNP also occur. The estimate of the increase in the size of the national petroleum reserve with shut-in of the NPRs was found to be most sensitive to the assumed length of future import interruptions.

  15. Naval Petroleum Reserve No. 1: an assessment of production alternatives

    SciTech Connect (OSTI)

    Not Available

    1984-07-30T23:59:59.000Z

    Under existing legislation, every 3 years the President must decide whether to shut-in or continue production of the Naval Petroleum Reserve No. 1 (NPR-1) oil field at Elk Hills, California. The current authorization for production expires on April 5, 1985. GAO discusses the geologic, budgetary, local economic, and national security implications of three production alternatives for NPR-1: continued production, shut-in, and partial shut in. In addition, GAO discusses the advantages and disadvantages of establishing a Defense Petroleum Reserve, a crude oil reserve for the military, using part of the revenues from continued production at NPR-1 to fund it. During the course of its review, GAO found that production rates at Elk Hills may be too high, causing problems within the reserve that could decrease ultimate recovery of oil by about 139 million barrels. The Department of Energy plans to analyze this situation and, if need be, adjust the rate. 2 figures, 2 tables.

  16. Annual report of operations. [Naval Petroleum Reserves No. 1, 2, 3; oil shale reserves

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    The Naval Petroleum and Oil Shale Reserves during FY 1980 deliver 59,993,213 bbl of crude oil and substantial quantities of natural gas, butane, propane and natural gasoline to the United States market. During September, Naval Petroleum Reserve oil was utilized to resume filling the Strategic Petroleum Reserve. During FY 1980, Naval Petroleum Reserve No. 1, Elk Hills, became the largest producing oil field in California and the second largest producing field in the United States. Production at the end of September was 165,000 bbl/d; production is expected to peak at about 190,000 bbl/d early in calender year 1982. Production from Naval Petroleum Reserves Nos. 2 and 3 in California and Wyoming, contributed 1,101,582 and 1,603,477 bbl of crude oil to the market, respectively. Enhanced oil recovery work has been inititated at Naval Petroleum Reserve no. 3. Total revenues from the Naval Petroleum Reserves during FY 1980 were 1.6 billion. The three Naval Oil Shale Reserves in Colorado and Utah have substantial potential. In addition to containing approximately 2.5 billion bbl recoverable shale oil. They probably contain significant quantities of conventional oil and gas.

  17. Rise and fall of a tactic: the ram in nineteenth century naval doctrine

    E-Print Network [OSTI]

    Johnson, Robert Leroy

    1989-01-01T23:59:59.000Z

    . , 158; "A Royal Navy Officer", "Tactical Results of Recent Naval Construction, " Naval Science, Vol. 2 No. 2 (AP '1, 1873), 1397 Ed d J 2 d, ~0 ~ld 88 ((. o d: JoR M 9, 1869), 20. Baxter, Introduction of the Ironclad Warshi , 100. U. S. , Department...? son ( ~&ember) J. Richard St (Member) L rry D. Hill (He d of Department) December 1989 ABSTRACT Rise and Fall of a Tactic: The Ram in Nineteenth Century Naval Doctrine. (December 1989) Robert Leroy Johnson II, B. A. , Kansas State University...

  18. Naval petroleum reserves: Sales procedures and prices received for Elk Hills oil

    SciTech Connect (OSTI)

    Not Available

    1986-01-01T23:59:59.000Z

    The Congress expressed concern about the Department of Energy's actions in selling oil from the Elk Hills Naval Petroleum Reserve at what appeared to be unreasonably low prices. DOE officials believe that Naval Petroleum Reserve oil has been and is currently being produced at the appropriate rate and that no recoverable oil has been lost. This fact sheet provides information on the basis for the procedures followed by DOE in selling Naval Petroleum Reserve oil and sales data for the period extending from October 1985 through April 1986.

  19. Light-weight materials selection for high-speed naval craft

    E-Print Network [OSTI]

    Torrez, Joseph B. (Joseph Benjamin)

    2007-01-01T23:59:59.000Z

    A decision analysis study was conducted on the process of materials selection for high-speed naval craft using the Modified Digital Logic (MDL) method proposed by B. Dehgham-Manshadi et al in ref [17]. The purpose is to ...

  20. EA-1236: Preparation for Transfer of Ownership of Naval Petroleum Reserve No. 3, Natrona County, WY

    Broader source: Energy.gov [DOE]

    Final Sitewide Environmental Assessment (EA) This Sitewide EA evaluates activities that DOE would conduct in anticipation of possible transfer of Naval Petroleum Reserve No. 3 (NPR-3) out of Federal operation.

  1. Modular machinery arrangement and its impact in early-stage naval electric ship design

    E-Print Network [OSTI]

    Jurkiewicz, David J. (David James)

    2012-01-01T23:59:59.000Z

    Electrical power demands for naval surface combatants are projected to rise with the development of increasingly complex and power intensive combat systems. This trend also coincides with the need of achieving maximum fuel ...

  2. Analyzing the effects of component reliability on naval Integrated Power System quality of service

    E-Print Network [OSTI]

    Hawbaker, Benjamin F. (Benjamin Forrest)

    2008-01-01T23:59:59.000Z

    The Integrated Power System (IPS) is a key enabling technology for future naval vessels and their advanced weapon systems. While conventional warship designs utilize separate power systems for propulsion and shipboard ...

  3. US Department of Energy Naval petroleum reserve number 1. Financial statement audit

    SciTech Connect (OSTI)

    NONE

    1997-03-01T23:59:59.000Z

    The Naval Petroleum and Oil Shale Reserves (NPOSR) produces crude oil and associated hydrocarbons from the Naval Petroleum Reserves (NPR) numbered 1, 2, and 3, and the Naval Oil Shale Reserves numbered 1, 2, and 3 in a manner to achieve the greatest value and benefits to the United States taxpayer. NPOSR was established by a series of Executive Orders in the early 1900s as a future source of liquid fuels for the military. NPOSR remained largely inactive until Congress, responding to the Arab oil embargo of 1973-74, passed the Naval Petroleum Reserves Production Act of 1976. The law authorized production for six years. Thereafter, NPOSR production could be reauthorized by the President in three-year increments. Since enactment of the law, every President has determined that continuing NPOSR production is in the nation`s best interest. NPOSR currently is authorized to continue production through April 5, 2000.

  4. A study of the Naval Construction Force project material supply chain

    E-Print Network [OSTI]

    Stasick, Steven J. (Steven James), 1970-

    2004-01-01T23:59:59.000Z

    The Naval Construction Force (NCF) performs construction projects in all areas of the world during both peacetime and war. While some of these projects occur in populated areas where project materials are readily available, ...

  5. Application and analysis of stiffened side shell panel failure for naval patrol craft

    E-Print Network [OSTI]

    Mothander, Matthew K. A., Lieutenant (Matthew Kristian Alden)

    2009-01-01T23:59:59.000Z

    Over their lifetime, naval patrol craft are subjected to many different types of loading scenarios, most of which are perfectly safe. In rare instances, through a variety of different reasons, these craft are loaded beyond ...

  6. EIS-0158: Sale of the Naval Petroleum Reserve No. 1 at Elk Hills, California (1997)

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy developed this EIS to assess the potential environmental impacts of the continued operation of the Naval Petroleum Reserve No. 1 at the Maximum Efficient Rate authorized by Public Law 94-258.

  7. EIS-0068: Development Policy Options for the Naval Oil Shale Reserves in Colorado

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy Office of Naval Petroleum and Oil Shale Reserves prepared this programmatic statement to examine the environmental and socioeconomic impacts of development projects on the Naval Oil Shale Reserve 1, and examine select alternatives, such as encouraging production from other liquid fuel resources (coal liquefaction, biomass, offshore oil and enhanced oil recovery) or conserving petroleum in lieu of shale oil production.

  8. Naval Undersea Warfare Center Division Newport utilities metering, Phase 1

    SciTech Connect (OSTI)

    Carroll, D.M.

    1992-11-01T23:59:59.000Z

    Pacific Northwest Laboratory developed this report for the US Navy's Naval Undersea Warfare Center Division Newport, Rhode Island (NUWC). The purpose of the report was to review options for metering electricity and steam used in the NUWC compound, and to make recommendations to NUWC for implementation under a follow-on project. An additional NUWC concern is a proposed rate change by the servicing utility, Newport Electric, which would make a significant shift from consumption to demand billing, and what effect that rate change would have on the NUWC utility budget. Automated, remote reading meters are available which would allow NUWC to monitor its actual utility consumption and demand for both the entire NUWC compound and by end-use in individual buildings. Technology is available to perform the meter reads and manipulate the data using a personal computer with minimal staff requirement. This is not meant to mislead the reader into assuming that there is no requirement for routine preventive maintenance. All equipment requires routine maintenance to maintain its accuracy. While PNL reviewed the data collected during the site visit, however, it became obvious that significant opportunities exist for reducing the utility costs other than accounting for actual consumption and demand. Unit costs for both steam and electricity are unnecessarily high, and options are presented in this report for reducing them. Additionally, NUWC has an opportunity to undertake a comprehensive energy resource management program to significantly reduce its energy demand, consumption, and costs.

  9. Naval Undersea Warfare Center Division Newport utilities metering, Phase 1

    SciTech Connect (OSTI)

    Carroll, D.M.

    1992-11-01T23:59:59.000Z

    Pacific Northwest Laboratory developed this report for the US Navy`s Naval Undersea Warfare Center Division Newport, Rhode Island (NUWC). The purpose of the report was to review options for metering electricity and steam used in the NUWC compound, and to make recommendations to NUWC for implementation under a follow-on project. An additional NUWC concern is a proposed rate change by the servicing utility, Newport Electric, which would make a significant shift from consumption to demand billing, and what effect that rate change would have on the NUWC utility budget. Automated, remote reading meters are available which would allow NUWC to monitor its actual utility consumption and demand for both the entire NUWC compound and by end-use in individual buildings. Technology is available to perform the meter reads and manipulate the data using a personal computer with minimal staff requirement. This is not meant to mislead the reader into assuming that there is no requirement for routine preventive maintenance. All equipment requires routine maintenance to maintain its accuracy. While PNL reviewed the data collected during the site visit, however, it became obvious that significant opportunities exist for reducing the utility costs other than accounting for actual consumption and demand. Unit costs for both steam and electricity are unnecessarily high, and options are presented in this report for reducing them. Additionally, NUWC has an opportunity to undertake a comprehensive energy resource management program to significantly reduce its energy demand, consumption, and costs.

  10. NALDA (Naval Aviation Logistics Data Analysis) CAI (computer aided instruction)

    SciTech Connect (OSTI)

    Handler, B.H. (Oak Ridge K-25 Site, TN (USA)); France, P.A.; Frey, S.C.; Gaubas, N.F.; Hyland, K.J.; Lindsey, A.M.; Manley, D.O. (Oak Ridge Associated Universities, Inc., TN (USA)); Hunnum, W.H. (North Carolina Univ., Chapel Hill, NC (USA)); Smith, D.L. (Memphis State Univ., TN (USA))

    1990-07-01T23:59:59.000Z

    Data Systems Engineering Organization (DSEO) personnel developed a prototype computer aided instruction CAI system for the Naval Aviation Logistics Data Analysis (NALDA) system. The objective of this project was to provide a CAI prototype that could be used as an enhancement to existing NALDA training. The CAI prototype project was performed in phases. The task undertaken in Phase I was to analyze the problem and the alternative solutions and to develop a set of recommendations on how best to proceed. The findings from Phase I are documented in Recommended CAI Approach for the NALDA System (Duncan et al., 1987). In Phase II, a structured design and specifications were developed, and a prototype CAI system was created. A report, NALDA CAI Prototype: Phase II Final Report, was written to record the findings and results of Phase II. NALDA CAI: Recommendations for an Advanced Instructional Model, is comprised of related papers encompassing research on computer aided instruction CAI, newly developing training technologies, instructional systems development, and an Advanced Instructional Model. These topics were selected because of their relevancy to the CAI needs of NALDA. These papers provide general background information on various aspects of CAI and give a broad overview of new technologies and their impact on the future design and development of training programs. The paper within have been index separately elsewhere.

  11. Renewable Energy Optimization Report for Naval Station Newport

    SciTech Connect (OSTI)

    Robichaud, R.; Mosey, G.; Olis, D.

    2012-02-01T23:59:59.000Z

    In 2008, the U.S. Environmental Protection Agency (EPA) launched the RE-Powering America's Land initiative to encourage the development of renewable energy (RE) on potentially contaminated land and mine sites. As part of this effort, EPA is collaborating with the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) to evaluate RE options at Naval Station (NAVSTA) Newport in Newport, Rhode Island. NREL's Renewable Energy Optimization (REO) tool was utilized to identify RE technologies that present the best opportunity for life-cycle cost-effective implementation while also serving to reduce energy-related carbon dioxide emissions and increase the percentage of RE used at NAVSTA Newport. The technologies included in REO are daylighting, wind, solar ventilation preheating (SVP), solar water heating, photovoltaics (PV), solar thermal (heating and electric), and biomass (gasification and cogeneration). The optimal mix of RE technologies depends on several factors including RE resources; technology cost and performance; state, utility, and federal incentives; and economic parameters (discount and inflation rates). Each of these factors was considered in this analysis. Technologies not included in REO that were investigated separately per NAVSTA Newport request include biofuels from algae, tidal power, and ground source heat pumps (GSHP).

  12. Distributed energy resources at naval base ventura county building 1512

    SciTech Connect (OSTI)

    Bailey, Owen C.; Marnay, Chris

    2004-10-01T23:59:59.000Z

    This paper reports the findings of a preliminary assessment of the cost effectiveness of distributed energy resources at Naval Base Ventura County (NBVC) Building 1512. This study was conducted in response to the base's request for design assistance to the Federal Energy Management Program. Given the current tariff structure there are two main decisions facing NBVC: whether to install distributed energy resources (DER), or whether to continue the direct access energy supply contract. At the current effective rate, given assumptions about the performance and structure of building energy loads and available generating technology characteristics, the results of this study indicate that if the building installed a 600 kW DER system with absorption cooling and heat capabilities chosen by cost minimization, the energy cost savings would be about 14 percent, or $55,000 per year. However, under current conditions, this study also suggests that significant savings could be obtained if Building 1 512 changed from the direct access contract to a SCE TOU-8 (Southern California Edison time of use tariff number 8) rate without installing a DER system. At current SCE TOU-8 tariffs, the potential savings from installation of a DER system would be about 4 percent, or $15,000 per year.

  13. Analysis and experiments for contra-rotating propeller

    E-Print Network [OSTI]

    Kravitz, Eyal

    2011-01-01T23:59:59.000Z

    Contra-rotating propellers have renewed interest from the naval architecture community, because of the recent development of electric propulsion drives and podded propulsors. Contrarotating propulsion systems have the ...

  14. Design and cavitation performance of contra-rotating propellers

    E-Print Network [OSTI]

    Laskos, Dimitrios

    2010-01-01T23:59:59.000Z

    Improvement of the propulsive efficiency of ships has always been one of the main objectives for naval architects and marine engineers. Contra-Rotating propellers (CRP) are propulsor configurations offering higher efficiency ...

  15. ONR Symposium on Naval Hydrodynamics, Val de Reuil, France, 17-22 September. Forces, Moment and Wave Pattern for Naval Combatant

    E-Print Network [OSTI]

    Gui, Lichuan

    ABSTRACT A model-scale naval surface combatant, DTMB 5512, is studied experimentally in steady forward and Stern (1996) applied traditional 5-hole pitot probes to measure the time mean velocities. Laser Ohkusu (1990) described two methods, i.e. with wave probes installed on the towing carriage for acquiring

  16. This document was downloaded on May 22, 2013 at 14:37:52 Author(s) Naval Postgraduate School (U.S.)

    E-Print Network [OSTI]

    Officer in Charge Naval Engineering J. E. Fradd D. R. Frakes J. P. Craft Capt. USN Cmdr. USN Cmdr. USN

  17. Potential geothermal energy use at the Naval Air Rework Facilities, Norfolk, Virginia and Jacksonville, Florida, and at the naval shipyard, Charleston, South Carolina

    SciTech Connect (OSTI)

    Costain, J.K.; Glover, L. III; Newman, R.W.

    1984-05-01T23:59:59.000Z

    The feasibility of geothermal energy use at naval installations in Norfolk, VA, Jacksonville, FL, and Charleston, SC was assessed. Geophysical and geological studies of the above areas were performed. Engineering and economic factors, affecting potential energy use, were evaluated. The Norfolk and Jacksonville facilities are identified as candidates for geothermal systems. System costs are predicted. Economic benefits of the proposed geothermal systems are forecast, using the net present value method of predicting future income.

  18. Modeling of Coastal Inundation, Storm Surge, and Relative Sea-Level Rise at Naval Station Norfolk, Norfolk, Virginia, U.S.A.

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Modeling of Coastal Inundation, Storm Surge, and Relative Sea- Level Rise at Naval Station Norfolk. Modeling of coastal inundation, storm surge, and relative sea-level rise at Naval Station Norfolk, Norfolk, and relative sea-level-rise (RSLR) scenarios were examined at the U.S. Naval Station, Norfolk, Virginia

  19. Naval Research Laboratory Memorandum Report, 2003 Perceptual and Ergonomic Issues in

    E-Print Network [OSTI]

    Swan II, J. Edward

    Naval Research Laboratory Memorandum Report, 2003 1 Perceptual and Ergonomic Issues in Mobile paradigm, the field needs a much better understanding of the fundamental perceptual and ergonomic issues aimed at both understanding the fundamental perceptual and ergonomic issues in AR display

  20. Importance of Nuclear DataImportance of Nuclear Data to the Naval Nuclear Propulsion Program

    E-Print Network [OSTI]

    Danon, Yaron

    Importance of Nuclear DataImportance of Nuclear Data to the Naval Nuclear Propulsion Program Don Cores · Project Prometheus · Some Very Recent Criticality Analyses #12;Use of Early RPI Measurements · Criticality Analyses of Under-moderated Systemsy y y · Most Reactive Condition ­ Highest Water Density

  1. Karen Swider-Lyons, Peter Bouwman, Norma Ugarte Naval Research Laboratory

    E-Print Network [OSTI]

    supported on MOx·H2O supported on carbon Pt MOx e- carbon H+ OO H+ H+ Nafion H+ O2 O H2O Catalyst development via electrochemical and structural analysis #12;Naval Research Lab DOE review 19May2003 Pt-MOx

  2. Mitigation action plan sale of Naval Petroleum Reserve No. 1 (Elk Hills) Kern County, California

    SciTech Connect (OSTI)

    NONE

    1998-01-01T23:59:59.000Z

    Naval Petroleum Reserve No. 1 (NPR-1, also called {open_quotes}Elk Hills{close_quotes}), a Federally-owned oil and gas production field in Kern County, California, was created by an Executive Order issued by President Taft on September 2, 1912. He signed another Executive Order on December 13, 1912, to establish Naval Petroleum Reserve No. 2 (NPR-2), located immediately south of NPR-1 and containing portions of the town of Taft, California. NPR-1 was not developed until the 1973-74 oil embargo demonstrated the nation`s vulnerability to oil supply interruptions. Following the embargo, Congress passed the Naval Petroleum Reserves Production Act of 1976 which directed that the reserve be explored and developed to its fall economic potential at the {open_quotes}maximum efficient rate{close_quotes} (MER) of production. Since Elk Hills began full production in 1976, it has functioned as a commercial operation, with total revenues to the Federal government through FY 1996 of $16.4 billion, compared to total exploration, development and production costs of $3.1 billion. In February 1996, Title 34 of the National Defense Authorization Act for Fiscal Year 1996 (P.L. 104-106), referred to as the Elk Hills Sales Statute, directed the Secretary of Energy to sell NPR-1 by February 10, 1998.The Secretary was also directed to study options for enhancing the value of the other Naval Petroleum and Oil Shale Reserve properties such as NPR-2, located adjacent to NPR-1 in Kern County- Naval Petroleum Reserve No. 3 (NPR-3) located in Natrona County, Wyoming; Naval Oil Shale Reserves No. 1 and No. 3 (NOSR-1 and NOSR-3) located in Garfield County, Colorado; and Naval Oil Shale Reserve No. 2 (NOSR-2) located in Uintah and Carbon Counties, Utah. The purpose of these actions was to remove the Federal government from the inherently non-Federal function of operating commercial oil fields while making sure that the public would obtain the maximum value from the reserves.

  3. "The Fourth Dimension of Naval Tactics": The U.S. Navy and Public Relations, 1919-1939 

    E-Print Network [OSTI]

    Wadle, Ryan David

    2012-07-16T23:59:59.000Z

    Prior to 1917, the United States Navy only utilized public relations techniques during times of war or to attract recruits into naval service. Following World I, the Navy confronted several daunting problems, including the ...

  4. EA-0531: Proposed Natural Gas Protection Program for Naval Oil Shale Reserves Nos. 1 and 3, Garfield County, Colorado

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal for a Natural Gas Protection Program for Naval Oil Shale Reserves Nos. 1 and 3 which would be implemented over a five-year period that...

  5. Technical Safety Appraisal of the Naval Petroleum Reserve No. 1, Elk Hills, California

    SciTech Connect (OSTI)

    Not Available

    1990-02-01T23:59:59.000Z

    This report presents the results of a focused Technical Safety Appraisal (TSA) of the Naval Petroleum Reserve No. 1 (NPR-1), Elk Hills, California, conducted during November 27 through December 8, 1989. The Department of Energy (DOE) program organization responsible for NPR-1 is the Assistant Secretary for Fossil Energy (FE); the responsible Field Office is the Naval Petroleum Reserves California (NPRC) Office. This appraisal is an application of the program that was initiated in 1985 to strengthen the DOE Environment, Safety and Health Program. The appraisal was conducted by the staff of the DOE Assistant Secretary for Environment, Safety and Health (EH), Office of Safety Appraisals, with support from experts in specific appraisal areas, including a number from the petroleum industry, and a liaison representative from FE. The Senior EH Manager for the appraisal was Mr. Robert Barber, Acting Director, Office of Compliance Programs; the Team Leader was Dr. Owen Thompson, Office of Safety Appraisals.

  6. Investigation on the continued production of the Naval Petroleum Reserves beyond April 5, 1991

    SciTech Connect (OSTI)

    Not Available

    1990-09-01T23:59:59.000Z

    The authority to produce the Naval Petroleum Reserves (NPRs) is due to expire in April 1991, unless extended by Presidential finding. As provided in the Naval Petroleum Reserves Production act of 1976 (Public Law 94-258), the President may continue production of the NPRs for a period of up to three years following the submission to Congress, at least 180 days prior to the expiration of the current production period, of a report that determines that continued production of the NPRs is necessary and a finding by the President that continued production is in the national interest. This report assesses the need to continue production of the NPRs, including analyzing the benefits and costs of extending production or returning to the shut-in status that existed prior to 1976. This continued production study considers strategic, economic, and energy issues at the local, regional, and national levels. 15 figs., 13 tabs.

  7. U.S. Department of Energy Naval Petroleum and Oil Shale Reserves combined financial statements, September 30, 1996 and 1995

    SciTech Connect (OSTI)

    NONE

    1997-03-01T23:59:59.000Z

    The Naval Petroleum and Oil Shale Reserves (NPOSR) produces crude oil and associated hydrocarbons from the Naval Petroleum Reserves (NPR) numbered 1, 2, and 3, and the Naval Oil Shale Reserves (NOSR) numbered 1, 2, and 3 in a manner to achieve the greatest value and benefits to the US taxpayer. NPOSR consists of the Naval Petroleum Reserve in California (NPRC or Elk Hills), which is responsible for operations of NPR-1 and NPR-2; the Naval Petroleum Oil Shale Reserve in Colorado, Utah, and Wyoming (NPOSR-CUW), which is responsible for operations of NPR-3, NOSR-1, 2, and 3 and the Rocky Mountain Oilfield Testing Center (RMOTC); and NPOSR Headquarters in Washington, DC, which is responsible for overall program direction. Each participant shares in the unit costs and production of hydrocarbons in proportion to the weighted acre-feet of commercially productive oil and gas formations (zones) underlying the respective surface lands as of 1942. The participating shares of NPR-1 as of September 30, 1996 for the US Government and Chevron USA, Inc., are listed. This report presents the results of the independent certified public accountants` audit of the Department of Energy`s (Department) Naval Petroleum and Oil Shale Reserves (NPOSR) financial statements as of September 30, 1996.

  8. EIS-0251: Department of the Navy Final Environmental Impact Statement for a Container System for the Management of Naval Spent Nuclear Fuel (November 1996)

    Broader source: Energy.gov [DOE]

    This Final Environmental Impact Statement addresses six general alternative systems for the loading, storage, transport, and possible disposal of naval spent nuclear fuel following examination.

  9. Naval Petroleum and Oil Shale Reserves. Annual report of operations, Fiscal year 1993

    SciTech Connect (OSTI)

    Not Available

    1993-12-31T23:59:59.000Z

    During fiscal year 1993, the reserves generated $440 million in revenues, a $33 million decrease from the fiscal year 1992 revenues, primarily due to significant decreases in oil and natural gas prices. Total costs were $207 million, resulting in net cash flow of $233 million, compared with $273 million in fiscal year 1992. From 1976 through fiscal year 1993, the Naval Petroleum and Oil Shale Reserves generated $15.7 billion in revenues for the US Treasury, with expenses of $2.9 billion. The net revenues of $12.8 billion represent a return on costs of 441 percent. See figures 2, 3, and 4. In fiscal year 1993, production at the Naval Petroleum and Oil Shale Reserves at maximum efficient rates yielded 25 million barrels of crude oil, 123 billion cubic feet of natural gas, and 158 million gallons of natural gas liquids. The Naval Petroleum and Oil Shale Reserves has embarked on an effort to identify additional hydrocarbon resources on the reserves for future production. In 1993, in cooperation with the US Geological Survey, the Department initiated a project to assess the oil and gas potential of the program`s oil shale reserves, which remain largely unexplored. These reserves, which total a land area of more than 145,000 acres and are located in Colorado and Utah, are favorably situated in oil and gas producing regions and are likely to contain significant hydrocarbon deposits. Alternatively the producing assets may be sold or leased if that will produce the most value. This task will continue through the first quarter of fiscal year 1994.

  10. Rise and fall of a tactic: the ram in nineteenth century naval doctrine 

    E-Print Network [OSTI]

    Johnson, Robert Leroy

    1989-01-01T23:59:59.000Z

    collision between a steamer and another vessel at anchor which resulted in the sinking of the latter. In 1846, George L. Schuyler proposed a ram to Congress, supporting his concept with the evidence of two maritime accidents. The first occurred when... THE EMERGENCE OF THE RAM IN THE 1860'S About 1860, two important events happened that mark a new phase in the history of the ram, as well as naval history in general. In 1858, the French laid down the first ocean-going ironclad warship, the Gloire, to which...

  11. Influence of physiography and vegetation on small mammals at the Naval Petroleum Reserves, California

    SciTech Connect (OSTI)

    Cypher, B.L.

    1995-02-13T23:59:59.000Z

    Influence of physiography and vegetation on small mammal abundance and species Composition was investigated at Naval Petroleum Reserve No. 1 in California to assess prey abundance for Federally endangered San Joaquin kit foxes (Vulpes macrotis mutica) and to assess the distribution of two Federal candidate species, San Joaquin antelope squirrels (Ammospermophilus nelsoni) and short-nosed kangaroo rats (Dinodomys nitratoides brevinasus). The specific objectives of this investigation were to determine whether small mammal abundance and community composition varied with north-south orientation, terrain, ground cover, and Cypher shrub density, and whether these factors influenced the distribution and abundance of San Joaquin antelope squirrels and short-nosed kangaroo rats.

  12. U.S. Naval Station, Guantanamo Bay, Cuba | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssuesEnergyTransportation&Department of Energy U.S.Naval

  13. Environmental assessment, aircraft chemical warfare survivability test program, Naval Air Warfare Center, Aircraft Division, Patuxent River, Maryland

    SciTech Connect (OSTI)

    NONE

    1992-02-01T23:59:59.000Z

    The proposed project, the Aircraft Chemical Warfare Survivability Test Program at Patuxent River Naval Air Station, involves the testing and development of aircraft systems and operating procedures for use in an environment contaminated with chemical/biological warfare agents. The tests will be performed in accordance with a directive from the chief of Naval Operations to obtain and maintain the capability to operate in a chemically-contaminated environment. These tests will be performed under outdoor, warm-weather conditions on a dredge disposal area and adjacent runways to simulate the conditions under which a real-life threat would be encountered.

  14. Endangered Species Program, Naval Petroleum Reserves in California. Annual report FY93

    SciTech Connect (OSTI)

    NONE

    1995-02-01T23:59:59.000Z

    The Naval Petroleum Reserves in California (NPRC) are operated by the US Department of Energy (DOE) and Chevron USA. Production Company (CPDN). Four federally-listed endangered animal species and one federally-threatened plant species are known to occur on NPRC: San Joaquin kit fox, blunt-nosed leopard lizard, giant kangaroo rat, Tipton kangaroo rat, and Hoover`s wooly-star. All five are protected under the Endangered Species Act of 1973, which declares that it is ``...the policy of Congress that all Federal departments and agencies shall seek to conserve endangered species and threatened species and shall utilize their authorities in furtherance of the purposes of the Act.`` DOE is also obliged to determine whether actions taken by their lessees on Naval Petroleum Reserve No. 2 will have any effects on endangered species or their habitats. The major objective of the EG&G Energy Measurements, Inc. Endangered Species Program on NPRC is to provide DOE with the scientific expertise necessary for compliance with the Endangered Species Act. The specific objective of this report is to summarize progress and results of the Endangered Species Program made during fiscal year 1993.

  15. Endangered species and cultural resources program, Naval Petroleum Reserves in California, annual report FY97

    SciTech Connect (OSTI)

    NONE

    1998-05-01T23:59:59.000Z

    The Naval Petroleum Reserves in California (NPRC) are oil fields administered by the DOE in the southern San Joaquin Valley of California. Four federally endangered animal species and one federally threatened plant species are known to occur on NPRC: San Joaquin kit fox (Vulpes macrotis mutica), blunt-nosed leopard lizard (Gambelia silus), giant kangaroo rat (Dipodomys ingens), Tipton kangaroo rat (Dipodomys nitratoides), and Hoover`s wooly-star (Eriastrum hooveri). All five are protected under the Endangered Species Act (ESA) of 1973. The DOE/NPRC is obliged to determine whether actions taken by their lessees on Naval Petroleum Reserve No. 2 (NPR-2) will have any effects on endangered species or their habitats. The primary objective of the Endangered Species and Cultural Resources Program is to provide NPRC with the scientific expertise necessary for compliance with the ESA, the National Environmental Policy Act (NEPA), and the National Historic Preservation Act (NHPA). The specific objective of this report is to summarize progress, results, and accomplishments of the program during fiscal year 1997 (FY97).

  16. naval reactors

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich57/%2A en4/%2A en5/%2A

  17. JOB DESCRIPTION: E06, Senior Principal Naval Architect with a minimum of 10 + years experience in the design and construction of naval and/or commercial vessels, with a

    E-Print Network [OSTI]

    Eustice, Ryan

    + Years Naval Architecture experience International Experience Experience with Earned Value Management Demonstrated team management, task management and capture/proposal experience Desired Qualifications: 15 Program and/or Subcontract Management Experience To Apply On line, go to Raytheon.com under the careers

  18. EA-1889: Disposal of Decommissioned, Defueled Naval Reactor Plants from USS Enterprise (CVN 65) at the Hanford Site, Richland, Washington

    Broader source: Energy.gov [DOE]

    This EA, prepared by the Department of the Navy, evaluates the environmental impacts of the disposal of decommissioned, defueled, naval reactor plants from the USS Enterprise at DOE’s Hanford Site, Richland, Washington. DOE participated as a cooperating agency in the preparation of this EA. The Department of the Navy issued its FONSI on August 23, 2012.

  19. The Immortal Fausto: The Life, Works, and Ships of the Venetian Humanist and Naval Architect Vettor Fausto (1490-1546)

    E-Print Network [OSTI]

    Campana, Lilia

    2014-06-11T23:59:59.000Z

    in the Mediterranean, the Republic of Venice strongly encouraged Venetian shipwrights to submit new designs for war galleys. The undisputed founder and champion of this naval program was not a skilled shipwright but a young professor of Greek in the School of Saint...

  20. EIS-0158-S2: Supplemental Environmental Impact Statement Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy developed this statement, the supplement to DOE/EIS-0158, to analyze the environmental and socioeconomic impacts of the sale of Naval Petroleum Reserve No. 1 in Kern County, California to Occidental Petroleum Corporation.

  1. Superfund record of decision (EPA Region 3): Naval Weapons Station, operable unit 2, Yorktown, VA, September 29, 1995

    SciTech Connect (OSTI)

    NONE

    1996-05-01T23:59:59.000Z

    This decision document presents a determination that the No Further Remedial Action Decision with Institutional Controls is sufficient to protect human health and the environment for Operable Unit No. II (OU II), Site 16, the West Road Landfill and Site Screening Area (SSA) 16, the Building 402 Metal Disposal Area at the Naval Weapons Station (WPNSTA) Yorktown (Site 16/SSA 16).

  2. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement. Volume 1, Appendix D, Part B: Naval spent nuclear fuel management

    SciTech Connect (OSTI)

    Not Available

    1994-06-01T23:59:59.000Z

    This volume contains the following attachments: transportation of Naval spent nuclear fuel; description of Naval spent nuclear receipt and handling at the Expended Core Facility at the Idaho National Engineering Laboratory; comparison of storage in new water pools versus dry container storage; description of storage of Naval spent nuclear fuel at servicing locations; description of receipt, handling, and examination of Naval spent nuclear fuel at alternate DOE facilities; analysis of normal operations and accident conditions; and comparison of the Naval spent nuclear fuel storage environmental assessment and this environmental impact statement.

  3. Naval petroleum reserves: Preliminary analysis of future net revenues from Elk Hills production

    SciTech Connect (OSTI)

    Not Available

    1986-01-01T23:59:59.000Z

    This is an interim report on the present value of the net revenues from Elk Hills Naval Petroleum Reserve. GAO calculated alternative present values of the net revenues applying (1) low, medium, and high forecasts of future crude oil prices and (2) alternative interest rates for discounting the future net revenues to their present values. The calculations are sensitive to both the oil price forecasts and discount rates used; they are preliminary and should be used with caution. They do not take into account possible added tax revenues collected by the government if Elk Hills were sold nor varying production levels and practices, which could either increase or decrease the total amount of oil that can be extracted.

  4. Naval Petroleum Reserves: assessment of alternative operating strategies beyond 1982. Analysis and supporting data

    SciTech Connect (OSTI)

    Gsellman, L.R.; Mendis, M.S.; Rosenberg, J.I.

    1981-06-01T23:59:59.000Z

    Legislation authorizing production from two of the Naval Petroleum Reserves, i.e., NPR-1 (Elk Hills, California) and NPR-3 (Teapot Dome, Wyoming), expires in 1982. This paper presents analyses and supporting data concerning the trade-offs of extending production or returning to a shut-in status in order to provide the Department of Energy with information needed to formulate a recommendation. The primary objective of the study is to evaluate a range of possible futures (through 1990) to determine technical, economic, energy, strategic and political trade-offs between the two options. A secondary objective is to develop a data base for use by DOE to respond to questions and issues raised by interested parties during executive branch and Congressional reviews.

  5. Naval petroleum reserves: Oil sales procedures and prices at Elk Hills, April through December 1986

    SciTech Connect (OSTI)

    Not Available

    1987-01-01T23:59:59.000Z

    The Elk Hills Naval Petroleum Reserve is located near Bakersfield, California and ranks seventh among domestic producing oil fields. In Feb. 1986 the Department of Energy awarded contracts to 16 companies for the sale of about 82,000 barrels per day of NPR crude oil between April and September 1986. These companies bid a record high average discount of $4.49 from DOE's base price. The discounts ranged from $0.87 to $6.98 per barrel. These contracts resulted in DOE selling Elk Hills oil as low as $3.91 per barrel. Energy stated that the process for selling from NPR had gotten out of step with today's marketplace. Doe subsequently revised its sales procedures which requires bidders to submit a specific price for the oil rather than a discount to a base price. DOE also initiated other efforts designed to avoid future NPR oil sales at less than fair market value.

  6. Environmental Survey preliminary report, Naval Petroleum Reserves in California (NPRC), Tupman, California

    SciTech Connect (OSTI)

    Not Available

    1989-02-01T23:59:59.000Z

    This report presents the preliminary environmental findings from the first phase of the Environmental Survey of the US Department of Energy (DOE) Naval Petroleum Reserves 1 (NPR-1) and 2 (NPR-2) in California (NPRC), conducted May 9--20, 1988. The Survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment Safety and Health's Office of Environmental Audit. Individual team specialists are outside experts being supplied by a private contractor. The objective of the Survey is to identify environmental problems and areas of environmental risk associated with NPRC. The Survey covers all environmental media and all areas of environmental regulation. It is being performed in accordance with the DOE Environmental Survey Manual. The on-site phase of the Survey involved the review of existing site environmental data, observations of the operations carried on at NPRC, and interviews with site personnel. 120 refs., 28 figs., 40 tabs.

  7. Occurrence and distribution of special status plant species on the Naval Petroleum Reserves in California

    SciTech Connect (OSTI)

    Anderson, D.C.; Cypher, B.L.; Holmstead, G.L.; Hammer, K.L.; Frost, N.

    1994-10-01T23:59:59.000Z

    Several special status plant species occur or potentially occur at the Naval Petroleum Reserves in California (NPRC). Special status species are defined as those species that are either federally listed as endangered or threatened, or candidate taxa. Candidate species are classified as Category 1 or Category 2. Category 1 taxa are those species for which there is sufficient evidence to support listing, while Category 2 taxa are those species for which listing may possibly be appropriate, but for which sufficient data are lacking to warrant immediate listing. Determining the presence and distribution of these species on NPRC is necessary so that appropriate conservation or protection measures can be implemented. In the spring of 1988, a survey of Naval Petroleum Reserve No. 1 (NPR-1) was conducted to determine the occurrence of Hoover`s wooly-star (Eriastrum hooveri), Kern Mallow (Eremalche kemensis), San Joaquin wooly-threads (Lembertia congdonii), and California jewelflower (Caulanthus califonicus), all listed by the US Fish and Wildlife Service (FWS) as Category 2 species at that time. Of the four species, only Hoover`s wooly-star was found. It was concluded that Kern mallow and San Joaquin wooly-threads could potentially be found on NPR-1, but habitat for California jewelflower did not occur on NPR-1 and its occurrence was unlikely. As part of an ongoing effort to document the presence or absence of sensitive plant species on NPRC, surveys for species other than Hoover`s wooly-star were conducted in the spring of 1993. Abundant spring rains in 1993 created favorable growing conditions for annual forbs. Surveys in 1993 focused on potential habitat of several endangered and candidate species. The results of those surveys are presented in this report.

  8. Wildlife management plan, Naval Petroleum Reserve No. 1, Kern County, California

    SciTech Connect (OSTI)

    O'Farrell, T.P.; Scrivner, J.H.

    1987-01-01T23:59:59.000Z

    Under the Naval Petroleum Act of 1976, Congress directed the Secretary of the Navy and subsequently the Secretary of Energy, to produce petroleum products from Naval Petroleum Reserve No. 1 (NPR-1) in Kern County, California, at the maximum efficient rate consistent with sound engineering practices. Because of the presence of two endangered species and the quality, quantity, and contiguous nature of habitat on NPR-1, the area is unique and management of its resources deserves special attention. The purpose of this wildlife management plan is to: (1) draw together specific information on NPR-1 wildlife resources; (2) suggest management goals that could be implemented, which if achieved, would result in diverse, healthy wildlife populations; and (3) reinitiate cooperative agreements between the US Department of Energy (DOE) and other conservation organizations regarding the management of wildlife on NPR-1. NPR-1 supports an abundant and diverse vertebrate fauna. Twenty-five mammalian, 92 avian, eight reptilian, and two amphibian species have been observed on Elk Hills. Of these, three are endangered (San Joaquin kit fox, Vulpes macrotis mutica; giant kangaroo rat, Dipodomys ingens; blunt-nosed leopard lizard, Gambelia silus). Nine vertebrates, six invertebrates, and four plant species known to occur or suspected of occurring on Elk Hills are potential candidates for listing. A major objective of this management plan is to minimize the impact of petroleum development activities on the San Joaquin kit fox, giant kangaroo rat, blunt-nosed leopard lizard, and their essential habitats. This will mainly be achieved by monitoring the status of these species and their habitat and by restoring disturbed habitats. In general, management policies designed to benefit the above three species and other species of concern will also benefit other wildlife inhabiting NPR-1.

  9. Geometric Numerical Methods for Numerical Weather Prediction

    E-Print Network [OSTI]

    Langdon, Stephen

    -Mesh (HPM) Method · Label space is discretised into N particles with coordinates on the momentum phase space and Sij = (1 - ^2xx)-1. Geometric Numerical Methods for Numerical Weather Prediction ­ p. 8/28 #12;HPM Equations of shallow water motions · The canonical HPM equations of 1D shallow water motion on TS1 are P

  10. 2014 American Geophysical Union. All rights reserved. Observations and Numerical Simulations of Large Eddy Circulation

    E-Print Network [OSTI]

    Pierce, Stephen

    Oceanographic Institution, Woods Hole, MA, USA. 4 Naval Air Systems Command, Patuxent River, MD, USA

  11. EA-1956: Site-Wide Environmental Assessment for the Divestiture of Rocky Mountain Oilfield Testing Center and Naval Petroleum Reserve No. 3, Natrona County, Wyoming

    Broader source: Energy.gov [DOE]

    DOE prepared an EA that assesses the potential environmental impacts of the proposed discontinuation of DOE operations at the Rocky Mountain Oilfield Testing Center (RMOTC) and the proposed divestiture of Naval Petroleum Reserve Number 3 (NPR-3)

  12. Disruptive innovation and naval power : strategic and financial implications of unmanned underwater vehicles (UUVs) and long-term underwater power sources

    E-Print Network [OSTI]

    Larson, Richard Winston

    2014-01-01T23:59:59.000Z

    The naval warfare environment is rapidly changing. The U.S. Navy is adapting by continuing its blue-water dominance while simultaneously building brown-water capabilities. Unmanned systems, such as unmanned airborne drones, ...

  13. Using Net-Zero Energy Projects to Enable Sustainable Economic Redevelopment at the Former Brunswick Air Naval Base

    SciTech Connect (OSTI)

    Huffman, S.

    2011-10-01T23:59:59.000Z

    A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites. The Brunswick Naval Air Station is a naval air facility and Environmental Protection Agency (EPA) Super Fund site that is being cleaned up, and closed down. The objective of this report is not only to look at the economics of individual renewable energy technologies, but also to look at the systemic benefits that can be gained when cost-effective renewable energy technologies are integrated with other systems and businesses in a community; thus multiplying the total monetary, employment, and quality-of-life benefits they can provide to a community.

  14. Improvement of operational safety of dual-purpose transport packaging set for naval SNF in storage

    SciTech Connect (OSTI)

    Guskov, Vladimir; Korotkov, Gennady [JSC 'KBSM' (Russian Federation); Barnes, Ella [US Environmental Protection Agency - EPA (United States); Snipes, Randy [Oak Ridge National Laboratory - ORNL, 1 Bethel Valley Rd, Oak Ridge, TN 37830 (United States)

    2007-07-01T23:59:59.000Z

    Available in abstract form only. Full text of publication follows: In recent ten years a new technology of management of irradiated nuclear fuel (SNF) at the final stage of fuel cycle has been intensely developing on a basis of a new type of casks used for interim storage of SNF and subsequent transportation therein to the place of processing, further storage or final disposal. This technology stems from the concept of a protective cask which provides preservation of its content (SNF) and fulfillment of all other safety requirements for storage and transportation of SNF. Radiation protection against emissions and non-distribution of activity outside the cask is ensured by physical barriers, i.e. all-metal or composite body, shells, inner cavities for irradiated fuel assemblies (SFA), lids with sealing systems. Residual heat release of SFA is discharged to the environment by natural way: through emission and convection of surrounding air. By now more than 100 dual purpose packaging sets TUK-108/1 are in operation in the mode of interim storage and transportation of SNF from decommissioned nuclear powered submarines (NPS). In accordance with certificate, spent fuel is stored in TUK-108/1 on the premises of plants involved in NPS dismantlement for 2 years, whereupon it is transported for processing to PO Mayak. At one Far Eastern plant Zvezda involved in NPS dismantlement there arose a complicated situation due to necessity to extend period of storage of SNF in TUK- 108/1. To ensure safety over a longer period of storage of SNF in TUK-108/1 it is essential to modify conditions of storage by removing of residual water and filling the inner cavity of the cask with an inert gas. Within implementation of the international 1.1- 2 project Development of drying technology for the cask TUK-108/1 intended for naval SNF under the Program, there has been developed the technology of preparation of the cask for long-term storage of SNF in TUK-108/1, the design of a mobile TUK-108/1 drying facility; a pilot facility has been manufactured. This report describes key issues of cask drying technology, justification of terms of dry storage of naval SNF in no-108/1, design features of the mobile drying facility, results of tests of the pilot facility at the Far Eastern plant Zvezda. (authors)

  15. Environmental Survey preliminary report, Naval Petroleum and Oil Shale Reserves in Colorado, Utah, and Wyoming, Casper, Wyoming

    SciTech Connect (OSTI)

    Not Available

    1989-02-01T23:59:59.000Z

    This report presents the preliminary environmental findings from the first phase of the Environmental Survey of the United States Department of Energy (DOE) Naval Petroleum and Oil Shale Reserves in Colorado, Utah, and Wyoming (NPOSR-CUW) conducted June 6 through 17, 1988. NPOSR consists of the Naval Petroleum Reserve No. 3 (NPR-3) in Wyoming, the Naval Oil Shale Reserves No. 1 and 3 (NOSR-1 and NOSR-3) in Colorado and the Naval Oil Shale Reserve No. 2 (NOSR-2) in Utah. NOSR-2 was not included in the Survey because it had not been actively exploited at the time of the on-site Survey. The Survey is being conducted by an interdisciplinary team of environmental specialists, lead and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Individual team specialists are outside experts being supplied by a private contractor. The objective of the Survey is to identify environmental problems and areas of environmental risk associated with NPOSR. The Survey covers all environmental media and all areas of environmental regulation. It is being performed in accordance with the DOE Environmental Survey Manual. This phase of the Survey involves the review of existing site environmental data, observations of the operations carried on at NPOSR and interviews with site personnel. The Survey team has developed a Sampling and Analysis Plan to assist in further assessing specific environmental problems identified at NOSR-3 during the on-site Survey. There were no findings associated with either NPR-3 or NOSR-1 that required Survey-related sampling and Analysis. The Sampling and Analysis Plan will be executed by Idaho National Engineering Laboratory. When completed, the results will be incorporated into the Environmental Survey Summary report. The Summary Report will reflect the final determinations of the NPOSR-CUW Survey and the other DOE site-specific Surveys. 110 refs., 38 figs., 24 tabs.

  16. Report to the President on agreements and programs relating to the Naval Petroleum and Oil Shale Reserves

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    The Department of Energy monitors commercial natural gas production activities along the boundaries of Naval Oil Shale Reserve No. 1 and Naval Oil Shale Reserve No. 3, which are located in Garfield County, Colorado, and were created in the early part of this century to provide a future source of shale oil for the military. In response to the private sector`s drilling of natural gas wells along the south and southwest boundaries of the Reserves, which began in the early 1980`s, the Department developed a Natural Gas Protection Program to protect the Government`s resources from drainage due to the increasing number of commercial gas wells contiguous to Naval Oil Shale Reserve No. 3. This report provides an update of the Gas Protection Program being implemented and the agreements that have been placed in effect since December 19, 1991, and also includes the one communitized well containing Naval Petroleum Reserve No. 3 lands. The Protection Program employs two methods to protect the Government`s resources: (1) sharing with the private sector in the costs and production of wells by entering into ``communitization`` agreements; and (2) drilling wholly-owned Government wells to ``offset`` commercial wells that threaten to drain natural gas from the Reserves. The methods designed to protect the Government`s resources are achieving their objective of abating gas drainage and migration. As a result of the Protection Program, the Department of Energy is able to produce natural gas and either sell its share on the open market or transfer it for use at Government facilities. The Natural Gas Protection Program is a reactive, ongoing program that is continually revised as natural gas transportation constraints, market conditions, and nearby commercial production activities change.

  17. United States-Russian laboratory-to-laboratory cooperation on protection, control, and accounting for naval nuclear materials

    SciTech Connect (OSTI)

    Sukhoruchkin, V. [Kurchatov Inst., Moscow (Russian Federation); Yurasov, N.; Goncharenko, Y. [Russian Navy, Moscow (Russian Federation); Mullen, M. [Los Alamos National Lab., NM (United States); McConnell, D. [Sandia National Labs., Albuquerque, NM (United States)

    1996-12-31T23:59:59.000Z

    In March 1995, the Russian Navy contacted safeguards experts at the Kurchatov Institute (KI) and proposed the initiation of work to enhance nuclear materials protection, control, and accounting (MPC and A) at Russian Navy facilities. Because of KI`s successful experience in laboratory-to-laboratory MPC and A cooperation with US Department of Energy Laboratories, the possibility of US participation in the work with the Russian Navy was explored. Several months later, approval was received from the US Government and the Russian Navy to proceed with this work on a laboratory-to-laboratory basis through Kurchatov Institute. As a first step in the cooperation, a planning meeting occurred at KI in September, 1995. Representatives from the US Department of Energy (DOE), the US Department of Defense (DOD), the Russian Navy, and KI discussed several areas for near-term cooperative work, including a vulnerability assessment workshop and a planning study to identify and prioritize near-term MPC and A enhancements that might be implemented at Russian facilities which store or handle unirradiated highly enriched uranium fuel for naval propulsion applications. In subsequent meetings, these early proposals have been further refined and extended. This MPC and A cooperation will now include enhanced protection and control features for storage facilities and refueling service ships, computerized accounting systems for naval fuel, methods and equipment for rapid inventories, improved security of fresh fuel during truck transportation, and training. This paper describes the current status and future plans for MPC and A cooperation for naval nuclear materials.

  18. Naval Petroleum Reserve Number 1 financial statements September 30, 1997 and 1996 (with independent auditors` report thereon)

    SciTech Connect (OSTI)

    NONE

    1997-12-31T23:59:59.000Z

    The Naval Petroleum and Oil Shale Reserves (NPOSR) produces crude oil and associated hydrocarbons from the Naval Petroleum Reserve No. 1 (NPR-1) in a manner to achieve the greatest value and benefits to the US taxpayer. As required by the 1996 National Defense Authorization Act, the Department of Energy offered NPR-1 for sale during FY 1997. DOE structured the sale so as to offer two types of ownership segments: one operatorship segment, consisting of 74% of the US interest in NPR-1, and 13 nonoperating segments, each consisting of 2% of the US interest. Potential purchasers could bid on one, some, or all of the segments. If a single purchaser wanted to buy all of the Government`s interest, then its bid would have to exceed the total of the highest bids for all of the individual segments. Bids were due October 1, 1997, at which time DOE received 22 bids from 15 parties acting alone or in concert. The report and management letter present the results of the independent certified public accountants` audits of the Department of Energy`s Naval Petroleum Reserve Number 1 (NPR-1) financial statements as of, and for the years ended, September 30, 1997 and 1996.

  19. Final sitewide environmental assessment for continued development of Naval Petroleum Reserve No. 3 (NPR-3), Natrona County, Wyoming

    SciTech Connect (OSTI)

    NONE

    1995-07-01T23:59:59.000Z

    The Secretary of Energy is required by law to explore, prospect, conserve, develop, use, and operate the Naval Petroleum and Oil Shale Reserves. The Naval Petroleum Reserves Production Act of 1976 (Public Law 94-258), requires that the Naval Petroleum Reserves be produced at their maximum efficient rate (MER), consistent with sound engineering practices, for a period of six years. To fulfill this mission, DOE is proposing continued development activities which would include the drilling of approximately 250 oil production and injection (gas, water, and steam) wells, the construction of between 25 and 30 miles of associated gas, water, and steam pipelines, the installation of several production and support facilities, and the construction of between 15 and 20 miles of access roads. These drilling and construction estimates include any necessary activities related to the operation of the Rocky Mountain Oilfield Testing Center (RMOTC). The purpose of RMOTC will be to provide facilities and necessary support to government and private industry for testing and evaluating new oilfield and environmental technologies, and to transfer these results to the petroleum industry through seminars and publications. Continued development activities either have no potential to result in adverse environmental impacts or would only result in adverse impacts that could be readily mitigated. The small amounts of disturbed surface area will be reclaimed to its original natural state when production operations terminate. The preparation of an environmental impact statement is not required, and the DOE is issuing this Finding of No Significant Impact (FONSI). 73 refs.

  20. Naval Petroleum Reserves in California site environmental report for calendar year 1989

    SciTech Connect (OSTI)

    Not Available

    1989-01-01T23:59:59.000Z

    This summary for Naval Petroleum Reserves in California (NPRC) is divided into NPR-1 and NPR-2. Monitoring efforts at NPR-1 include handling and disposal of oilfield wastes; environmental preactivity surveys for the protection of endangered species and archaeological resources; inspections of topsoil stockpiling; monitoring of revegetated sites; surveillance of production facilities for hydrocarbons and oxides of nitrogen (NO{sub x}) emissions; monitoring of oil spill prevention and cleanup; and monitoring of wastewater injection. No major compliance issues existed for NPR-1 during 1989. Oil spills are recorded, reviewed for corrective action, and reported. Environmental preactivity surveys for proposed projects which may disturb or contaminate the land are conducted to prevent damage to the federally protected San Joaquin kit fox, blunt-nosed leopard lizard, Tipton kangaroo rat and the giant kangaroo rat. Projects are adjusted or relocated as necessary to avoid impact to dens, burrows, or flat-bottomed drainages. A major revegetation program was accomplished in 1989 for erosion control enhancement of endangered species habitat. The main compliance issue on NPR-2 was oil and produced water discharges into drainages by lessees. An additional compliance issue on NPR-2 is surface refuse from past oilfield operations. 17 refs.

  1. Endangered species and cultural resources program Naval petroleum Reserves in California. Annual report FY96

    SciTech Connect (OSTI)

    NONE

    1997-07-01T23:59:59.000Z

    In FY96, Enterprise Advisory Services, Inc. (EASI) continued to support efforts to protect endangered species and cultural resources at the Naval Petroleum Reserves in California (NPRC). These efforts are conducted to ensure NPRC compliance with regulations regarding the protection of listed species and cultural resources on federal properties. Population monitoring activities were conducted for San Joaquin kit foxes, giant kangaroo rats, blunt-nosed leopard lizards, and Hoover`s wooly-star. Kit fox abundance and distribution was assessed by live-trapping over a 329-km{sup 2} area. Kit fox reproduction and mortality were assessed by radiocollaring and monitoring 22 adults and two pups. Reproductive success and litter size were determined through live-trapping and den observations. Rates and sources of kit fox mortality were assessed by recovering dead radiocollared kit foxes and conducting necropsies to determine cause of death. Abundance of coyotes and bobcats, which compete with kit foxes, was determined by conducting scent station surveys. Kit fox diet was assessed through analysis of fecal samples collected from live-trapped foxes. Abundance of potential prey for kit foxes was determined by conducting transect surveys for lagornorphs and live-trapping small mammals.

  2. Distributed Energy Resources at Naval Base Ventura County Building1512: A Sensitivity Analysis

    SciTech Connect (OSTI)

    Bailey, Owen C.; Marnay, Chris

    2005-06-05T23:59:59.000Z

    This report is the second of a two-part study by BerkeleyLab of a DER (distributed energy resources) system at Navy Base VenturaCounty (NBVC). First, a preliminary assessment ofthe cost effectivenessof distributed energy resources at Naval Base Ventura County (NBVC)Building 1512 was conducted in response to the base s request for designassistance to the Federal Energy Management Program (Bailey and Marnay,2004). That report contains a detailed description of the site and theDER-CAM (Consumer Adoption Model) parameters used. This second reportcontains sensitivity analyses of key parameters in the DER system modelof Building 1512 at NBVC and additionally considers the potential forabsorption-powered refrigeration.The prior analysis found that under thecurrent tariffs, and given assumptions about the performance andstructure of building energy loads and available generating technologycharacteristics, installing a 600 kW DER system with absorption coolingand recovery heat capabilities could deliver cost savings of about 14percent, worth $55,000 per year. However, under current conditions, thisstudy also suggested that significant savings could be obtained ifBuilding 1512 changed from its current direct access contract to a SCETOU-8 (Southern California Edison time of use tariff number 8) ratewithout installing a DER system. Evaluated on this tariff, the potentialsavings from installation of a DER system would be about 4 percent of thetotal bill, or $16,000 per year.

  3. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs, Draft Environmental Impact Statement. Volume 1, Appendix D: Part A, Naval Spent Nuclear Fuel Management

    SciTech Connect (OSTI)

    Not Available

    1994-06-01T23:59:59.000Z

    Volume 1 to the Department of Energy`s Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Management Programs Environmental Impact Statement evaluates a range of alternatives for managing naval spent nuclear fuel expected to be removed from US Navy nuclear-powered vessels and prototype reactors through the year 2035. The Environmental Impact Statement (EIS) considers a range of alternatives for examining and storing naval spent nuclear fuel, including alternatives that terminate examination and involve storage close to the refueling or defueling site. The EIS covers the potential environmental impacts of each alternative, as well as cost impacts and impacts to the Naval Nuclear Propulsion Program mission. This Appendix covers aspects of the alternatives that involve managing naval spent nuclear fuel at four naval shipyards and the Naval Nuclear Propulsion Program Kesselring Site in West Milton, New York. This Appendix also covers the impacts of alternatives that involve examining naval spent nuclear fuel at the Expended Core Facility in Idaho and the potential impacts of constructing and operating an inspection facility at any of the Department of Energy (DOE) facilities considered in the EIS. This Appendix also considers the impacts of the alternative involving limited spent nuclear fuel examinations at Puget Sound Naval Shipyard. This Appendix does not address the impacts associated with storing naval spent nuclear fuel after it has been inspected and transferred to DOE facilities. These impacts are addressed in separate appendices for each DOE site.

  4. Active control of underwater propulsor using shape memory alloys

    E-Print Network [OSTI]

    Wasylyszyn, Jonathan Allen

    2007-04-25T23:59:59.000Z

    ............................................................................................................1 Previous Work ..............................................................................................................1 Smart Material Actuators..............................................................................................3..., which can hinder a military vessel?s ability to move through the water with stealth. The second design is the controllable pitch propeller. The blades of the propeller are able to rotate at the hub interface to change their pitch1. Controllable...

  5. Endangered species program Naval Petroleum Reserves in California. Annual report FY94

    SciTech Connect (OSTI)

    NONE

    1995-04-01T23:59:59.000Z

    In FY94, EG and G Energy Measurements, Inc. (EG and G/EM) continued to support efforts to conserve endangered species and cultural resources at the Naval Petroleum Reserves in California (NPRC). These efforts are conducted to ensure NPRC compliance with regulations regarding the protection of listed species and cultural resources on Federal properties. Population monitoring activities are conducted annually for San Joaquin kit foxes, giant kangaroo rats, blunt-nosed leopard lizards, and Hoover`s wooly star. To mitigate impacts of oil field activities on listed species, 400 preactivity surveys covering approximately 315 acres were conducted in FY94. Mitigation measures implemented as a result of survey findings resulted in avoidance of incidental takes of listed species during construction activities. EG and G/EM also assisted with mitigating effects from third-party projects, primarily by conducting biological and cultural resource consultations with regulatory agencies. Third-party projects in FY94 included three pipeline projects and two well abandonment/clean-up projects. Cultural resource support provided to NPRC consisted primarily of conducting preliminary surveys for cultural resources, and preparing a Cultural Resource Management Plan and Programmatic Agreement for NPR-1. These two documents will be finalized in FY95. EG and G/EM has conducted an applied habitat reclamation program at NPRC since 1985. In FY94, an evaluation of revegetation rates on reclaimed and non-reclaimed disturbed lands was initiated to assess reclamation efficacy. Results will be used to direct future habitat reclamation efforts at NPRC. In addition to this effort, 347 reclaimed sites were assessed to evaluate reclamation success.

  6. Conservation plan for protected species on Naval Petroleum Reserve No. 1, Kern County, California

    SciTech Connect (OSTI)

    Otten, M.R.M.; Cypher, B.L.

    1997-07-01T23:59:59.000Z

    Habitats in and around Naval Petroleum Reserve No. 1 (NPR-1) support populations of various vertebrates and plants, including a number of threatened and endangered species. Adequate conservation of habitats and species, particularly protected species, can be facilitated through development and implementation of management plans. This document provides a comprehensive plan for the conservation of protected species on NPR-1, through compliance with terms and conditions expressed in Biological Opinions rendered by the U.S. Fish and Wildlife Service for NPR-1 activities. Six conservation strategies by which threatened and endangered species have been, and will be, protected are described: population monitoring, mitigation strategies, special studies, operating guidelines and policies, information transfer and outreach, and the endangered species conservation area. Population monitoring programs are essential for determining population densities and for assessing the effects of oil field developments and environmental factors on protected species. Mitigation strategies (preactivity surveys and habitat reclamation) are employed to minimize the loss of important habitats components and to restore previously disturbed lands to conditions more suitable for species` use. A number of special studies were undertaken between 1985 and 1995 to investigate the effectiveness of a variety of population and habitat management techniques with the goal of increasing the density of protected species. Operating guidelines and policies governing routine oil field activities continue to be implemented to minimize the potential for the incidental take of protected species and minimize damage to wildlife habitats. Information transfer and outreach activities are important means by which technical and nontechnical information concerning protected species conservation on NPR-1 is shared with both the scientific and non-scientific public.

  7. Endangered species and cultural resources program, Naval Petroleum Reserves in California: Annual report FY95

    SciTech Connect (OSTI)

    NONE

    1996-04-01T23:59:59.000Z

    In FY95, EG and G Energy Measurements, Inc. (EG and G/EM) continued to support efforts to protect endangered species and cultural resources at the Naval Petroleum Reserves in California (NPRC). These efforts are conducted to ensure NPRC compliance with regulations regarding the protection of listed species and cultural resources on Federal properties. Population monitoring activities are conducted annually for San Joaquin kit foxes, giant kangaroo rats, blunt-nosed leopard lizards, and Hoover`s wooly-star. To mitigate impacts of oil field activities on listed species, 674 preactivity surveys covering approximately 211 hectares (521 acres) were conducted in FY95. EG and G/EM also assisted with mitigating effects from third-party projects, primarily by conducting biological and cultural resource consultations with regulatory agencies. EG and G/EM has conducted an applied habitat reclamation program at NPRC since 1985. In FY95, an evaluation of revegetation rates on reclaimed and non-reclaimed disturbed lands was completed, and the results will be used to direct future habitat reclamation efforts at NPRC. In FY95, reclamation success was monitored on 50 sites reclaimed in 1985. An investigation of factors influencing the distribution and abundance of kit foxes at NPRC was initiated in FY94. Factors being examined include habitat disturbance, topography, grazing, coyote abundance, lagomorph abundance, and shrub density. This investigation continued in FY95 and a manuscript on this topic will be completed in FY96. Also, Eg and G/EM completed collection of field data to evaluate the effects of a well blow-out on plant and animal populations. A final report will be prepared in FY96. Finally, EG and G/EM completed a life table analysis on San Joaquin kit foxes at NPRC.

  8. LAB #8 Numerical Methods

    E-Print Network [OSTI]

    2005-10-20T23:59:59.000Z

    Page 1. LAB #8. Numerical Methods. Goal: The purpose of this lab is to explain how computers numerically ... Also you will examine what .... (7) Now consider the differential equation ... 3-exp(2*y)+sqrt(t)/y; (Don't forget the “;” at the end.).

  9. Technical Feasibility Study for Deployment of Ground-Source Heat Pump Systems: Portsmouth Naval Shipyard -- Kittery, Maine

    SciTech Connect (OSTI)

    Hillesheim, M.; Mosey, G.

    2014-11-01T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response, in accordance with the RE-Powering America's Lands initiative, engaged the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to conduct feasibility studies to assess the viability of developing renewable energy generating facilities on contaminated sites. Portsmouth Naval Shipyard (PNSY) is a United States Navy facility located on a series of conjoined islands in the Piscataqua River between Kittery, ME and Portsmouth, NH. EPA engaged NREL to conduct a study to determine technical feasibility of deploying ground-source heat pump systems to help PNSY achieve energy reduction goals.

  10. Naval Research Laboratory`s programs in advanced indium phosphide solar cell development

    SciTech Connect (OSTI)

    Summers, G.P.

    1995-10-01T23:59:59.000Z

    The Naval Research Laboratory has been involved in developing InP solar cell technology since 1988. The purpose of these programs was to produce advanced cells for use in very high radiation environments, either as a result of operating satellites in the Van Allen belts or for very long duration missions in other orbits. Richard Statler was technical representative on the first program, with Spire Corporation as the contractor, which eventually produced several hundred, high efficiency 2 x 2 sq cm single crystal InP cells. The shallow homojunction technology which was developed in this program enabled cells to be made with AMO, one sun efficiencies greater than 19%. Many of these cells have been flown on space experiments, including PASP Plus, which have confirmed the high radiation resistance of InP cells. NRL has also published widely on the radiation response of these cells and also on radiation-induced defect levels detected by DLTS, especially the work of Rob Walters and Scott Messenger. In 1990 NRL began another Navy-sponsored program with Tim Coutts and Mark Wanlass at the National Renewable Energy Laboratory (NREL), to develop a one sun, two terminal space version of the InP-InGaAs tandem junction cell being investigated at NREL for terrestrial applications. These cells were grown on InP substrates. Several cells with AMO, one sun efficiencies greater than 22% were produced. Two 2 x 2 sq cm cells were incorporated on the STRV lA/B solar cell experiment. These were the only two junction, tandem cells on the STRV experiment. The high cost and relative brittleness of InP wafers meant that if InP cell technology were to become a viable space power source, the superior radiation resistance of InP would have to be combined with a cheaper and more robust substrate. The main technical challenge was to overcome the effect of the dislocations produced by the lattice mismatch at the interface of the two materials.

  11. EIS-0020: Crude Oil Transport Alternate From Naval Petroleum Reserve No. 1 Elk Hills/SOHIO Pipeline Connection Conveyance System, Terminal Tank Farm Relocation to Rialto, California

    Broader source: Energy.gov [DOE]

    The Office of Naval Petroleum and Oil Shale Reserves developed this supplemental statement to evaluate the environmental impacts associated with a modified design of a proposed 250,000 barrels per day crude oil conveyance system from Navel Petroleum Reserve No. 1 to connect to the proposed SOHIO West Coast to Midcontinent Pipeline at Rialto, California. This SEIS is a supplement to DOE/EIS-0020, Crude Oil Transport Alternate From Naval Petroleum Reserve No. 1 Elk Hills/SOHIO Pipeline Connection Conveyance System, Terminal Tank Farm Relocation to Rialto, California.

  12. Public health assessment for Treasure Island Naval Station, Hunters Point Annex, San Francisco, San Francisco County, California, Region 9. Cerclis No. CA1170090087. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-09-30T23:59:59.000Z

    Naval Station Treasure Island, Hunters Point Annex (HPA), an inactive Naval shipyard located on a peninsula in the San Francisco Bay, San Francisco, California, was listed for base closure in 1990. Metals, pesticides, radium-226, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds, semivolatile organic compounds, petroleum products, and asbestos have been found in various media such as soil, groundwater, surface water, air, and sediments. Navy contractors have identified 58 HPA areas where there may be contamination; investigations at these areas are ongoing.

  13. Numerical Analysis Gordon K. Smyth

    E-Print Network [OSTI]

    Smyth, Gordon K.

    Numerical Analysis Gordon K. Smyth May 1997 Numerical analysis is concerned with the accurate discipline of numer­ ical analysis is almost entirely a product of the period since 1950 during which biostatisticians can benefit from familiarity with numerical analysis. An understanding of the numerical methods

  14. The naval Research Laboratory has been actively involved in research in unmanned and autonomous systems since its opening in 1923. From one of the first unmanned

    E-Print Network [OSTI]

    systems since its opening in 1923. From one of the first unmanned ground vehicles to the developmentThe naval Research Laboratory has been actively involved in research in unmanned and autonomous of more than 200 prototype air, ground, underwater, and space platforms, and from smart sensors to smart

  15. US Department of Energy Naval Petroleum and Oil Shale Reserves combined financial statements and management overview and supplemental financial and management information, September 30, 1995 and 1994

    SciTech Connect (OSTI)

    NONE

    1996-02-15T23:59:59.000Z

    This report presents the results of the independent certified public accountant`s audit of the Department of Energy`s (Department) Naval Petroleum and Oil Shale Reserves (NPOSR) financial statements as of September 30, 1995. The auditors have expressed an unqualified opinion on the 1995 statements. Their reports on the NPOSR internal control structure and compliance with laws and regulations are also provided.

  16. Phase II - final report study of alternatives for future operations of the naval petroleum and oil shale reserves NPR-3, Wyoming

    SciTech Connect (OSTI)

    NONE

    1996-12-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) has asked Gustavson Associates, Inc. to serve as an Independent Petroleum Appraiser under contract DE-AC01-96FE64202. This authorizes a study and recommendations regarding future development of Naval Petroleum Reserve No. 3 (NPR-3) in Natrona County, Wyoming. The report that follows is the Phase II Final Report for that study.

  17. Reservoir analysis study, Naval Petroleum Reserve No. 1, Elk Hills Field, Kern County, California: Phase 2 report, Volume 1

    SciTech Connect (OSTI)

    Not Available

    1988-06-01T23:59:59.000Z

    Jerry R. Bergeso and Associates, Inc. (Bergeson) has completed Phase II of the Reservoir Analysis, Naval Petroleum Reserve Number 1, Elk Hills Oilfield, California. The objectives for this phase of the study included the establishment of revised estimates of the original oil and gas-in-place for each of the zones/reservoirs, estimation of the remaining proved developed, proved undeveloped, probable and possible reserves, and assessment of the effects of historical development and production operations and practices on recoverable reserves. Volume one contains the following: summary; introduction; and reservoir studies for tulare, dry gas zone, eastern shallow oil zone, western shallow oil zone, and Stevens --MBB/W31S, 31S NA/D.

  18. Five-year resurvey for endangered species on Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California

    SciTech Connect (OSTI)

    O'Farrell, T.P.; Mathews, N.E.

    1987-09-01T23:59:59.000Z

    A transect survey of Naval Petroleum Reserve No. 1 (NPR-1), Kern County, California, was conducted in 1984 to determine the distribution and relative abundance of endangered species and other wildlife. A total of 589.8 miles of transects were walked through approximately 47,235 acres in all or parts of 81 sections. A total of 16,401 observations of 58 species of wildlife were made which demonstrated the richness and abundance of wildlife on NPR-1 in spite of the intensity of recent petroleum developments. Although most construction activities associated with increased petroleum production took place between the first transect survey in 1979 and this resurvey, no adverse changes in relative densities of kit fox dens, prey base, or other wildlife were observed. NPR-1 should be resurveyed again in 1989. 33 refs., 5 figs., 13 tabs.

  19. Performance and evaluation of gas-engine-driven split-system cooling equipment at the Willow Grove Naval Air Station

    SciTech Connect (OSTI)

    Armstrong, P.R.; Schmelzer, J.R.

    1997-01-01T23:59:59.000Z

    DOE`s Federal Energy Management Program supports efforts to reduce energy use and associated expenditures within the federal sector; one such effort, the New Technology Demonstration Program (NTDP)(formerly the Test Bed Demonstration program), seeks to evaluate new energy saving US technologies and secure their more timely adoption by the federal government. This report describes the field evaluation conducted to examine the performance of a 15-ton natural-gas-engine- driven, split-system, air-conditioning unit. The unit was installed at a multiple-use building at Willow Grove Naval Air Station, a regular and reserve training facility north of Philadelphia, and its performance was monitored under the NTDP.

  20. Reservoir analysis study, Naval Petroleum Reserve No. 1, Elk Hills Field, Kern County, California: Phase 2 report, Executive summary

    SciTech Connect (OSTI)

    Not Available

    1988-07-01T23:59:59.000Z

    The Naval Petroleum Reserve No. 1 (Elk Hills) is located in Kern County, California, and is jointly owned by the US Department of Energy and Chevron USA Inc. The Elk Hills Field is presently producing oil and gas from five geologic zones. These zones contain a number of separate and geologically complex reservoirs. Considerable field development and production of oil and gas have occurred since initial estimates of reserves were made. Total cumulative field production through December 1987 is 850 MMBbls of oil, 1.2 Tcf of gas and 648.2 MMBbls of water. In December 1987, field producing rates expressed on a calendar day basis amounted to 110,364 BOPD, 350,946 Mcfd and 230,179 BWPD from 1157 producers. In addition, a total of two reservoirs have gas injection in progress and four reservoirs have water injection in progress and four reservoirs have water injection in progress. Cumulative gas and water injection amounted to 586 Bcf of gas and 330 MMB of water. December 1987 gas and water injection rates amounted to 174 MMcfd and 234 MBWPD, into 129 injectors. In addition, a steamflood pilot program is currently active in the Eastern Shallow Oil Zone. Jerry R. Bergeson and Associates, Inc. (Bergeson) has completed Phase II of the Reservoir Analysis, Naval Petroleum Reserve Number 1, Elk Hills Oilfield, California. The objectives for this phase of the study included the establishment of revised estimates of the original oil and gas-in-place for each of the zones/reservoirs, estimation of the remaining proved developed, proved undeveloped, probable and possible reserves, and assessment of the effects of historical development and production operations and practices on recoverable reserves. 28 figs., 37 tabs.

  1. Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station

    SciTech Connect (OSTI)

    Armstrong, P.R.; Conover, D.R.

    1993-05-01T23:59:59.000Z

    In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

  2. Numerical Integration Gordon K. Smyth

    E-Print Network [OSTI]

    Smyth, Gordon K.

    Numerical Integration Gordon K. Smyth in Encyclopedia of Biostatistics (ISBN 0471 975761) Edited by Peter Armitage and Theodore Colton John Wiley & Sons, Ltd, Chichester, 1998 #12;Numerical Integration Numerical integration is the study of how the numerical value of an integral can be found. Also called

  3. 11. NUMERICAL TECHNIQUES 1 Numerical identification of effective multipole

    E-Print Network [OSTI]

    Boyer, Edmond

    11. NUMERICAL TECHNIQUES 1 Numerical identification of effective multipole moments of polarizable of the induced multipole moments. A general multipole theory is available in the literature, however, only linear multipole model is usually exploited when determining numerically these effective moments. Since this axial

  4. Vettor Fausto (1490-1546), Professor of Greek and a Naval Architect: A New Light on the 16th-century Manuscript Misure di vascelli etc. di…proto dell’Arsenale di Venetia 

    E-Print Network [OSTI]

    Campana, Lilia 1975-

    2010-12-06T23:59:59.000Z

    This thesis investigates the significant role that the Venetian humanist Vettor Fausto (1490-1546), professor of Greek at the School of Saint Mark, played during the first half of the 16th century in Venetian naval ...

  5. EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of the proposal to install an overhead powerline extension from the U.S. Department of Energy's Naval Petroleum Reserve No. 1 (NPR-1) power source to the...

  6. Numerical Integration Gordon K. Smyth

    E-Print Network [OSTI]

    Smyth, Gordon K.

    Numerical Integration Gordon K. Smyth May 1997 Numerical integration is the study of how the numerical value of an integral can be found. Also called quadrature, which refers to finding a square whose \\Lambda . Of central interest is the process of approximating a definite integral from values of the in

  7. Numerical Analysis Gordon K. Smyth

    E-Print Network [OSTI]

    Smyth, Gordon K.

    Numerical Analysis Gordon K. Smyth in Encyclopedia of Biostatistics (ISBN 0471 975761) Edited by Peter Armitage and Theodore Colton John Wiley & Sons, Ltd, Chichester, 1998 #12;Numerical Analysis Numerical analysis is concerned with the accurate and efficient evalua- tion of mathematical expressions

  8. Dynamical Spacetimes from Numerical Hydrodynamics

    E-Print Network [OSTI]

    Allan Adams; Nathan Benjamin; Arvin Moghaddam; Wojciech Musial

    2014-11-07T23:59:59.000Z

    We numerically construct dynamical asymptotically-AdS$_4$ metrics by evaluating the fluid/gravity metric on numerical solutions of dissipative hydrodynamics in (2+1) dimensions. The resulting numerical metrics satisfy Einstein's equations in (3+1) dimensions to high accuracy.

  9. Proposed natural gas protection program for Naval Oil Shale Reserves Nos. 1 and 3, Garfield County, Colorado

    SciTech Connect (OSTI)

    Not Available

    1991-08-01T23:59:59.000Z

    As a result of US Department of Energy (DOE) monitoring activities, it was determined in 1983 that the potential existed for natural gas resources underlying the Naval Oil Shales Reserves Nos. 1 and 3 (NOSrs-1 3) to be drained by privately-owned gas wells that were being drilled along the Reserves borders. In 1985, DOE initiated a limited number of projects to protect the Government's interest in the gas resources by drilling its own offset production'' wells just inside the boundaries, and by formally sharing in the production, revenues and costs of private wells that are drilled near the boundaries ( communitize'' the privately-drilled wells). The scope of these protection efforts must be expanded. DOE is therefore proposing a Natural Gas Protection Program for NOSRs-1 3 which would be implemented over a five-year period that would encompass a total of 200 wells (including the wells drilled and/or communitized since 1985). Of these, 111 would be offset wells drilled by DOE on Government land inside the NOSRs' boundaries and would be owned either entirely by the Government or communitized with adjacent private land owners or lessees. The remainder would be wells drilled by private operators in an area one half-mile wide extending around the NOSRs boundaries and communitized with the Government. 23 refs., 2 figs., 6 tabs.

  10. Empirical, probabilistic, and modelling approaches to assess cross-media impacts to marine sediments at Puget Sound Naval Shipyard

    SciTech Connect (OSTI)

    Rohrer, W.L.; Vita, C.L. [URS Consultants, Inc., Seattle, WA (United States); Schrock, W. [Navy, Poulsbo, WA (United States). Engineering Field Activity Northwest; Leicht, G. [Navy, Bremerton, WA (United States)

    1996-12-31T23:59:59.000Z

    Dredge spoils, industrial fill, and liquid wastes from the 1940s to 1970s have resulted in inorganic and organic contamination of soils, groundwater, and marine sediments near the U.S.S. Missouri and Charleston Beach parking lots at Puget Sound Naval Shipyard (PSNS), in Bremerton, Washington. Extensive collection of environmental data from several studies including the recently completed Remedial Investigation conducted under CERCLA have confirmed contaminant levels above federal risk screening levels and state regulatory criteria for several heavy metals and organic compounds, including pesticides and PCBs. Although the correlation between contamination in marine sediments and those in on-shore fill appears to be strong, there is little evidence that a viable transport pathway currently exists from soils to groundwater and thence to sediments. Several methods used to estimate chemical mass flux from soil to groundwater to sediments and marine waters of Sinclair Inlet are corroborative in this regard. Nonetheless, this result is vexing because present groundwater concentrations exceed ARARs, yet are below levels of concern in terms of mass flux to marine waters. Despite the marginal risks posed by groundwater, various remedial alternatives, including perimeter containment using a subsurface waste-stabilized containment wall, were evaluated to determine whether chemical flux could be reduced to levels below those observed at the present time. Three-dimensional flow modelling and transport modelling also confirmed that chemical fluxes were limited in magnitude and could be addressed with more conventional remedial approaches.

  11. Summary and evaluation of the coyote control program on Naval Petroleum Reserve No. 1, Kern County, California, 1987

    SciTech Connect (OSTI)

    Scrivner, J.H.

    1987-09-01T23:59:59.000Z

    For the third consecutive year (1987) the US Department of Energy (DOE) funded a coyote (Canis latrans) control program in an attempt to reduce coyote predation on the endangered San Joaquin kit fox (Vulpes macrotis mutica) on Naval Petroleum Reserve No. 1 (NPR-1, Elk Hills) in Kern County, California. During approximately 8 weeks of control activities, personnel from the US Department of Agriculture, Division of Animal Damage Control (ADC), removed 16 adult coyotes: 14 were trapped, 2 were shot. Data were gathered on standard measurements, weights, ages, and reproductive condition. No kit foxes were accidently trapped. Based on the results of canid scent-station surveys, the coyote population on NPR-1 declined and the kit fox population was relatively stable. Recommendations were made to conduct the 1987/1988 coyote control program between December 1987 and February 1988, use helicopters for aerial gunning and locating coyote dens, and develop a cooperative agreement between DOE, ADC, US Fish and Wildlife Service, Bureau of Land Management, and the California Department of Fish and Game to conduct the coyote control program on lands surrounding NPR-1 owned by DOE and others. 8 refs., 2 figs., 2 tabs.

  12. U.S. Department of Energy Naval Petroleum Reserve Number 1 quarterly financial statements, December 31, 1996 and 1995

    SciTech Connect (OSTI)

    NONE

    1997-03-18T23:59:59.000Z

    The report presents the results of the independent certified public accountants` review of the Department of Energy`s Naval Petroleum Reserve Number 1 interim financial statements as of December 31, 1996 and 1995. The review was done in accordance with Statements on Standards for Accounting and Review Services issued by the American Institute of Certified Public Accountants. A review of interim financial statements consists principally of inquiries of NPR-1 personnel and analytical procedures applied to financial data. It is substantially less in scope than an audit in accordance with generally accepted auditing standards, the objective of which is the expression of an opinion regarding the financial statements take as a whole. Accordingly, the certified public accountants do not express such an opinion. The auditors have stated that, except for the omission of certain disclosures, they are not aware of any material modifications that should be made to the financial statements in order for them to be in conformity with the other comprehensive basis of accounting described in Note 1 to the financial statements.

  13. U.S. Department of Energy Naval Petroleum Reserve Number 1 quarterly financial statements, March 31, 1997 and 1996

    SciTech Connect (OSTI)

    NONE

    1997-04-17T23:59:59.000Z

    The report presents the results of the independent certified public accountants` review of the Department of Energy`s Naval Petroleum Reserve Number 1 interim financial statements as of March 31, 1997 and 1996. The review was done in accordance with Statements on Standards for Accounting and Review Services issued by the American Institute of Certified Public Accountants. A review of interim financial statements consist principally of inquires of NPR-1 personnel and analytical procedures applied to financial data. It is substantially less in scope than an audit in accordance with generally accepted auditing standards, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, the certified public accountants do not express such an opinion. The auditors have stated that, except for the omission of certain disclosures, they are not aware of any material modifications that should be made to the financial statements in order for them to be in conformity with the other comprehensive basis of accounting described in Note 1 to the financial statements.

  14. Reservoir compartmentalization caused by mass transport deposition Northwest Stevens pool, Elk Hills Naval Petroleum Reserves, California

    SciTech Connect (OSTI)

    Milliken, M.D.; McJannet, G.S. [Dept. of Energy, Tupman, CA (United States); Shiflett, D.W. [Intera Petroleum Technology, Inc., Bakersfield, CA (United States); Deutsch, H.A. [Bechtel Petroleum Operations, Inc., Tupman, CA (United States)] [and others

    1996-12-31T23:59:59.000Z

    The {open_quotes}A{close_quotes} sands of the Northwest Stevens Pool consist of six major subdivisions (A1-A6) and numerous sublayers. These sands are above the {open_quotes}N Point{close_quotes} stratigraphic marker, making them much younger than most other Stevens sands at Elk Hills. Cores show the A1-A3 sands to be possibly mass transport deposition, primarily debris flows, slumps, and sand injection bodies. The A4-A6 sands are characterized by normally graded sheet-like sand bodies Hospital of traditional outer fan turbidite lithofacies. Most current production from the A1-A2 interval comes from well 373A-7R, are completed waterflood wells that came on line in 1992 at 1400 BOPD. Well 373A-7R is an anomaly in the A1-A2 zone, where average production from the other ten wells is 200 BOPD. Other evidence for compartmentalization in the A1-A2 interval includes sporadic oil-water contacts and drawdown pressures, difficult log correlations, and rapid thickness changes. In 1973, well 362-7R penetrated 220 ft of wet Al sand. The well was redrilled updip and successfully completed in the A1, where the oil-water contact is more than 130 ft lower than the original hole and faulting is not apparent. In 1992, horizontal well 323H-7R unexpectedly encountered an entirely wet Al wedge zone. Reevaluation of the A1-A3 and other sands as mass transport origin is important for modeling initialization and production/development strategies.

  15. Reservoir compartmentalization caused by mass transport deposition Northwest Stevens pool, Elk Hills Naval Petroleum Reserves, California

    SciTech Connect (OSTI)

    Milliken, M.D.; McJannet, G.S. (Dept. of Energy, Tupman, CA (United States)); Shiflett, D.W. (Intera Petroleum Technology, Inc., Bakersfield, CA (United States)); Deutsch, H.A. (Bechtel Petroleum Operations, Inc., Tupman, CA (United States)) (and others)

    1996-01-01T23:59:59.000Z

    The [open quotes]A[close quotes] sands of the Northwest Stevens Pool consist of six major subdivisions (A1-A6) and numerous sublayers. These sands are above the [open quotes]N Point[close quotes] stratigraphic marker, making them much younger than most other Stevens sands at Elk Hills. Cores show the A1-A3 sands to be possibly mass transport deposition, primarily debris flows, slumps, and sand injection bodies. The A4-A6 sands are characterized by normally graded sheet-like sand bodies Hospital of traditional outer fan turbidite lithofacies. Most current production from the A1-A2 interval comes from well 373A-7R, are completed waterflood wells that came on line in 1992 at 1400 BOPD. Well 373A-7R is an anomaly in the A1-A2 zone, where average production from the other ten wells is 200 BOPD. Other evidence for compartmentalization in the A1-A2 interval includes sporadic oil-water contacts and drawdown pressures, difficult log correlations, and rapid thickness changes. In 1973, well 362-7R penetrated 220 ft of wet Al sand. The well was redrilled updip and successfully completed in the A1, where the oil-water contact is more than 130 ft lower than the original hole and faulting is not apparent. In 1992, horizontal well 323H-7R unexpectedly encountered an entirely wet Al wedge zone. Reevaluation of the A1-A3 and other sands as mass transport origin is important for modeling initialization and production/development strategies.

  16. Numerical Modeling of HCCI Combustion

    Broader source: Energy.gov (indexed) [DOE]

    Numerical Modeling of HCCI Combustion Salvador M. Aceves, Daniel L. Flowers, J. Ray Smith, Joel Martinez-Frias, Francisco Espinosa-Loza, Tim Ross, Bruce Buchholz, Nick...

  17. NumericalS imulation of Cooling Gas Injection Using

    E-Print Network [OSTI]

    NumericalS imulation of Cooling Gas Injection Using Adaptive Multiscale Techniques Wolfgang Dahmen words:fi nite volume method,fi lm cooling, cooling gas injection, multiscale techniques, grid adaptation#ciency is investigated. Keywords: Finite Volum Method,Film cooling, Cooling gas injection, Multiscale techniques, Grid

  18. Reproduction of the San Joaquin kit fox on Naval Petroleum Reserve No. 1, Elk Hills, California: 1980-1985

    SciTech Connect (OSTI)

    Zoellick, B.W.; O'Farrell, T.P.; McCue, P.M.; Harris, C.E.; Kato, T.T.

    1987-01-01T23:59:59.000Z

    Reproduction of the San Joaquin kit fox (Vulpes macrotis mutica) was studied in areas of petroleum development and areas relatively undisturbed by development on and adjacent to Elk Hills Naval Petroleum Reserve No. 1 (NPR-1), California from 1980-1985. Pregnancy rates of adults did not differ between habitats (93 to 100%), but the yearling pregnancy rate in developed habitat (56%) was lower than the adult rates and the yearling rate for undeveloped habitat (100%). Mean corpora lutea and placental scar counts did not differ between undeveloped and developed habitats, but adults had greater corpora lutea and placental scar counts than yearlings. Litter sizes averaged 4.1 and 4.4 for undeveloped and developed habitats respectively from 1980-1985 and did not differ between years or habitats. Mean number of litters observed per square mile during 1980-1985 did not differ between undeveloped (0.34) and developed habitats (0.29). The percentage of all females successfully raising pups in developed habitat declined significantly from 1980-1985 in comparison with the percent success of females in undeveloped habitat. Numbers of litters per square mile in developed habitat also declined significantly after 1981. The sex ratio of pups trapped in developed habitat was skewed towards males during the decline in litters produced per square mile from 1982-1985, but the ratio of males to females in undeveloped habitat did not differ from 1:1 during this time. The decline in some measures of reproductive success in developed habitat after 1981 coincided with a decrease in black-tailed jackrabbit and desert cottontail numbers on the NPR-1 study area. The decreased reproductive success of foxes in developed habitat after 1981 may have resulted from habitat degradation caused by oil field production activities, declining lagomorph numbers, or other unknown causes. 49 refs., 7 figs., 8 tabs.

  19. Joint environmental assessment for western NPR-1 3-dimensional seismic project at Naval Petroleum Reserve No. 1, Kern County, California

    SciTech Connect (OSTI)

    NONE

    1996-05-01T23:59:59.000Z

    The Department of Energy (DOE), in conjunction with the Bureau of Land Management (BLM), has prepared an Environmental Assessment (DOE/EA-1124) to identify and evaluate the potential environmental impacts of the proposed geophysical seismic survey on and adjacent to the Naval Petroleum Reserve No.1 (NPR-1), located approximately 35 miles west of Bakersfield, California. NPR-1 is jointly owned and operated by the federal government and Chevron U.S.A. Production Company. The federal government owns about 78 percent of NPR-1, while Chevron owns the remaining 22 percent. The government`s interest is under the jurisdiction of DOE, which has contracted with Bechtel Petroleum Operations, Inc. (BPOI) for the operation and management of the reserve. The 3-dimensional seismic survey would take place on NPR-1 lands and on public and private lands adjacent to NPR-1. This project would involve lands owned by BLM, California Department of Fish and Game (CDFG), California Energy Commission (CEC), The Nature Conservancy, the Center for Natural Lands Management, oil companies (Chevron, Texaco, and Mobil), and several private individuals. The proposed action is designed to provide seismic data for the analysis of the subsurface geology extant in western NPR-1 with the goal of better defining the commercial limits of a currently producing reservoir (Northwest Stevens) and three prospective hydrocarbon bearing zones: the {open_quotes}A Fan{close_quotes} in Section 7R, the 19R Structure in Section 19R, and the 13Z Structure in Section 13Z. Interpreting the data is expected to provide NPR-1 owners with more accurate locations of structural highs, faults, and pinchouts to maximize the recovery of the available hydrocarbon resources in western NPR-1. Completion of this project is expected to increase NPR-1 recoverable reserves, and reduce the risks and costs associated with further exploration and development in the area.

  20. The Numerical Simulation of Turbulence

    E-Print Network [OSTI]

    W. Schmidt

    2007-12-06T23:59:59.000Z

    In this contribution, I give an overview of the various approaches toward the numerical modelling of turbulence, particularly, in the interstellar medium. The discussion is placed in a physical context, i. e. computational problems are motivated from basic physical considerations. Presenting selected examples for solutions to these problems, I introduce the basic ideas of the most commonly used numerical methods.

  1. NUMERICAL ANALYSIS KENDALL E. ATKINSON

    E-Print Network [OSTI]

    Atkinson, Kendall

    of mathematics and computer science that creates, analyzes, and implements algorithms for solving nu- merically mathematical models in science and engineering, and numerical analysis of increasing sophistication has been of numerical analysis varies from quite theoretical mathematical studies (e.g. see [5]) to computer science

  2. Superfund record of decision (EPA Region 3): Patuxent River Naval Air Station, St. Mary`s County, MD, July 29, 1996

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    The decision document presents the selected interim remedial action for Operable Unit 1 (OU1) of the Former Sanitary Landfill site, at the U.S. Naval Air Station Patuxent River, MD. The interim remedy will reduce the potential of human exposure to wastes remaining at the landfill, precipitation filtering through landfill waste, and the potential risk posed by inhalation and ingestion of contaminated surficial soil at the landfill. The interim action will allow for the continued investigation of the landfill while evaluating final remedial options for groundwater, surface water, and sediment at the site.

  3. Naval Station Newport Wind Resource Assessment. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites, and The Naval Facilities Engineering Service Center

    SciTech Connect (OSTI)

    Robichaud, R.; Fields, J.; Roberts, J. O.

    2012-02-01T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA) launched the RE-Powering America's Land initiative to encourage development of renewable energy (RE) on potentially contaminated land and mine sites. EPA is collaborating with the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) to evaluate RE options at Naval Station (NAVSTA) Newport in Newport, Rhode Island where multiple contaminated areas pose a threat to human health and the environment. Designated a superfund site on the National Priorities List in 1989, the base is committed to working toward reducing the its dependency on fossil fuels, decreasing its carbon footprint, and implementing RE projects where feasible. The Naval Facilities Engineering Service Center (NFESC) partnered with NREL in February 2009 to investigate the potential for wind energy generation at a number of Naval and Marine bases on the East Coast. NAVSTA Newport was one of several bases chosen for a detailed, site-specific wind resource investigation. NAVSTA Newport, in conjunction with NREL and NFESC, has been actively engaged in assessing the wind resource through several ongoing efforts. This report focuses on the wind resource assessment, the estimated energy production of wind turbines, and a survey of potential wind turbine options based upon the site-specific wind resource.

  4. Speciation and Fate of Trace Metals in Estuarine Sediments Under Reduced and Oxidized Conditions, Seaplane Lagoon, Alameda Naval Air Station

    SciTech Connect (OSTI)

    Carroll, S A; Day, P A; Esser, B; Randall, S

    2002-10-18T23:59:59.000Z

    We have identified important chemical reactions that control the fate of metal-contaminated estuarine sediments if they are left undisturbed (in situ) or if they are dredged. We combined information on the molecular bonding of metals in solids from X-ray absorption spectroscopy (XAS) with thermodynamic and kinetic driving forces obtained from dissolved metal concentrations to deduce the dominant reactions under reduced and oxidized conditions. We evaluated the in situ geochemistry of metals (cadmium, chromium, iron, lead, manganese and zinc) as a function of sediment depth (to 100 cm) from a 60-year record of contamination at the Alameda Naval Air Station, California. Results from XAS and thermodynamic modeling of porewaters show that cadmium and most of the zinc form stable sulfide phases, and that lead and chromium are associated with stable carbonate, phosphate, phyllosilicate, or oxide minerals. Therefore, there is minimal risk associated with the release of these trace metals from the deeper sediments contaminated prior to the Clean Water Act (1975) as long as reducing conditions are maintained. Increased concentrations of dissolved metals with depth were indicative of the formation of metal HS- complexes. The sediments also contain zinc, chromium, and manganese associated with detrital iron-rich phyllosilicates and/or oxides. These phases are recalcitrant at near-neutral pH and do not undergo reductive dissolution within the 60-year depositional history of sediments at this site. The fate of these metals during dredging was evaluated by comparing in situ geochemistry with that of sediments oxidized by seawater in laboratory experiments. Cadmium and zinc pose the greatest hazard from dredging because their sulfides were highly reactive in seawater. However, their dissolved concentrations under oxic conditions were limited eventually by sorption to or co-precipitation with an iron (oxy)hydroxide. About 50% of the reacted CdS and 80% of the reacted ZnS were bonded to an oxide-substrate at the end of the 90-day oxidation experiment. Lead and chromium pose a minimal hazard from dredging because they are bonded to relatively insoluble carbonate, phosphate, phyllosilicate, or oxide minerals that are stable in seawater. These results point out the specific chemical behavior of individual metals in estuarine sediments, and the need for direct confirmation of metal speciation in order to constrain predictive models that realistically assess the fate of metals in urban harbors and coastal sediments.

  5. Five-year resurvey for endangered species on Naval Petroleum Reserve No. 1, (Elk Hills), Kern County, California

    SciTech Connect (OSTI)

    Otten, M.R.M.; O`Farrell, T.P.; Briden, L.E.

    1992-06-01T23:59:59.000Z

    A transect survey of Naval Petroleum Reserve No. 1 (NPR-1), Kern County, California, was conducted between July 3 and August 5, 1989 to determine the distribution and relative density of endangered species and other wildlife. Results were compared with other reported results, particularly the 1979 and 1984 surveys of NPR-1. A total of 589.8 miles of transects were walked through approximately 47,235 acres in all or parts of 81 sections. Of the 516 San Joaquin kit fox dens observed, 496 were typical subterranean dens and 20 were atypical dens in man-made structures. Estimated den density was 36.7 {plus_minus} 4.1 per square mile; and relative den density was 10.5/1,000 acres for all of NPR-1. Characteristics of typical kit fox dens were comparable to characteristics reported for other studies, except mean number of entrances per den, which was lower. Observers counted a total of 300 dens previously marked with an identification sign, 191 of which contained at least one complete entrance and would have been observed without a sign. Relative densities of preferred kit fox prey, black-toiled jackrabbits (40.1/1,000 acres) and desert cottontails (14.1/1,000 acres), were lower than previously recorded. Five blunt-nosed leopard lizards were observed along the southwest and northeast perimeter of the Reserve. Most of the 59 giant kangaroo rat burrow systems were observed in the flat terrain along the northeast and south perimeters of the Reserve. San Joaquin antelope squirrels were observed in the central and western parts of NPR- 1. A total of 73 antelope squirrels were observed, and the relative density was 1.511,000 acres. A total.of 30 possible environmental hazards were observed during transect surveys. Most of these were oil and water leaks of small size and appeared to pose little risk to endangered species. Results of this survey indicate that NPR-1 is supporting less wildlife than it did during either the 1979 or 1984 surveys.

  6. Five-year resurvey for endangered species on Naval Petroleum Reserve No. 1, (Elk Hills), Kern County, California

    SciTech Connect (OSTI)

    Otten, M.R.M.; O'Farrell, T.P.; Briden, L.E.

    1992-06-01T23:59:59.000Z

    A transect survey of Naval Petroleum Reserve No. 1 (NPR-1), Kern County, California, was conducted between July 3 and August 5, 1989 to determine the distribution and relative density of endangered species and other wildlife. Results were compared with other reported results, particularly the 1979 and 1984 surveys of NPR-1. A total of 589.8 miles of transects were walked through approximately 47,235 acres in all or parts of 81 sections. Of the 516 San Joaquin kit fox dens observed, 496 were typical subterranean dens and 20 were atypical dens in man-made structures. Estimated den density was 36.7 [plus minus] 4.1 per square mile; and relative den density was 10.5/1,000 acres for all of NPR-1. Characteristics of typical kit fox dens were comparable to characteristics reported for other studies, except mean number of entrances per den, which was lower. Observers counted a total of 300 dens previously marked with an identification sign, 191 of which contained at least one complete entrance and would have been observed without a sign. Relative densities of preferred kit fox prey, black-toiled jackrabbits (40.1/1,000 acres) and desert cottontails (14.1/1,000 acres), were lower than previously recorded. Five blunt-nosed leopard lizards were observed along the southwest and northeast perimeter of the Reserve. Most of the 59 giant kangaroo rat burrow systems were observed in the flat terrain along the northeast and south perimeters of the Reserve. San Joaquin antelope squirrels were observed in the central and western parts of NPR- 1. A total of 73 antelope squirrels were observed, and the relative density was 1.511,000 acres. A total.of 30 possible environmental hazards were observed during transect surveys. Most of these were oil and water leaks of small size and appeared to pose little risk to endangered species. Results of this survey indicate that NPR-1 is supporting less wildlife than it did during either the 1979 or 1984 surveys.

  7. Annual Report: 2010-2011 Storm Season Sampling For NON-DRY DOCK STORMWATER MONITORING FOR PUGET SOUND NAVAL SHIPYARD, BREMERTON, WA

    SciTech Connect (OSTI)

    Brandenberger, Jill M.; Metallo, David; Johnston, Robert K.; Gebhardt, Christine; Hsu, Larry

    2012-09-01T23:59:59.000Z

    This interim report summarizes the stormwater monitoring conducted for non-dry dock outfalls in both the confined industrial area and the residential areas of Naval Base Kitsap within the Puget Sound Naval Shipyard (referred to as the Shipyard). This includes the collection, analyses, and descriptive statistics for stormwater sampling conducted from November 2010 through April 2011. Seven stormwater basins within the Shipyard were sampled during at least three storm events to characterize non-dry dock stormwater discharges at selected stormwater drains located within the facility. This serves as the Phase I component of the project and Phase II is planned for the 2011-2012 storm season. These data will assist the Navy, USEPA, Ecology and other stakeholders in understanding the nature and condition of stormwater discharges from the Shipyard and inform the permitting process for new outfall discharges. The data from Phase I was compiled with current stormwater data available from the Shipyard, Sinclair/Dyes Inlet watershed, and Puget Sound in order to support technical investigations for the Draft NPDES permit. The permit would require storm event sampling at selected stormwater drains located within the Shipyard. However, the data must be considered on multiple scales to truly understand potential impairments to beneficial uses within Sinclair and Dyes Inlets.

  8. Petroleum production at maximum efficient rate, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California. Draft Supplement to the 1979 Final Environmental Impact Statement

    SciTech Connect (OSTI)

    Not Available

    1992-05-01T23:59:59.000Z

    The proposed action involves the continued operation of the Naval Petroleum Reserve No. 1 (NPR-1) at the Maximum Efficiency Rate (MER) through the year approximately 2025 in accordance with the requirements of the Naval Petroleum Reserves Production Act of 1976 (P.L. 94-258). NPR-1 is a large oil and gas field comprising 74 square miles. MER production primarily includes continued operation and maintenance of existing facilities; a well drilling and abandonment program; construction and operation of future gas processing, gas compression, and steamflood, waterflood, cogeneration, and butane isomerization facilities; and continued implementation of a comprehensive environmental protection program. The basis for the draft environment impact statement (DSEIS) proposed action is the April 1989 NPR-1 Long Range Plan which describes a myriad of planned operational, maintenance, and development activities over the next 25--30 years. These activities include the continued operation of existing facilities; additional well drilling; expanded steamflood operations; expanded waterflood programs; expanded gas compression, gas lift, gas processing and gas injection; construction of a new cogeneration facility; construction of a new isobutane facility; and a comprehensive environmental program designed to minimize environmental impacts.

  9. Petroleum production at Maximum Efficient Rate Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California. Final Supplemental Environmental Impact Statement

    SciTech Connect (OSTI)

    Not Available

    1993-07-01T23:59:59.000Z

    This document provides an analysis of the potential impacts associated with the proposed action, which is continued operation of Naval Petroleum Reserve No. I (NPR-1) at the Maximum Efficient Rate (MER) as authorized by Public law 94-258, the Naval Petroleum Reserves Production Act of 1976 (Act). The document also provides a similar analysis of alternatives to the proposed action, which also involve continued operations, but under lower development scenarios and lower rates of production. NPR-1 is a large oil and gas field jointly owned and operated by the federal government and Chevron U.SA Inc. (CUSA) pursuant to a Unit Plan Contract that became effective in 1944; the government`s interest is approximately 78% and CUSA`s interest is approximately 22%. The government`s interest is under the jurisdiction of the United States Department of Energy (DOE). The facility is approximately 17,409 acres (74 square miles), and it is located in Kern County, California, about 25 miles southwest of Bakersfield and 100 miles north of Los Angeles in the south central portion of the state. The environmental analysis presented herein is a supplement to the NPR-1 Final Environmental Impact Statement of that was issued by DOE in 1979 (1979 EIS). As such, this document is a Supplemental Environmental Impact Statement (SEIS).

  10. Naval electrochemical corrosion reducer

    DOE Patents [OSTI]

    Clark, Howard L. (Ballston Lake, NY)

    1991-10-01T23:59:59.000Z

    A corrosion reducer for use with ships having a hull, a propeller mounted a propeller shaft and extending through the hull, bearings supporting the shaft, at least one thrust bearing and one seal. The improvement includes a current collector and a current reduction assembly for reducing the voltage between the hull and shaft in order to reduce corrosion due to electrolytic action. The current reduction assembly includes an electrical contact, the current collector, and the hull. The current reduction assembly further includes a device for sensing and measuring the voltage between the hull and the shaft and a device for applying a reverse voltage between the hull and the shaft so that the resulting voltage differential is from 0 to 0.05 volts. The current reduction assembly further includes a differential amplifier having a voltage differential between the hull and the shaft. The current reduction assembly further includes an amplifier and a power output circuit receiving signals from the differential amplifier and being supplied by at least one current supply. The current selector includes a brush assembly in contact with a slip ring over the shaft so that its potential may be applied to the differential amplifier.

  11. Naval Nuclear Propulsion

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011 at 2:00 P.M. Next8,NatureNauruEnergy

  12. Physical and Numerical Space Running Head: Biases in Physical and Numerical Space

    E-Print Network [OSTI]

    Chatterjee, Anjan

    Physical and Numerical Space 1 Running Head: Biases in Physical and Numerical Space Elementary school children's attentional biases in physical and numerical space Tilbe Göksun: April 30, 2012 #12; Physical and Numerical Space 2 Abstract Numbers

  13. Directions to the River's Edge Catering & Conference Center, Naval Air Station Patuxent River For mapping GPS program reference, Lexington Park, MD is the town just outside the base gates. Physical

    E-Print Network [OSTI]

    Yener, Aylin

    Rev 0310 Directions to the River's Edge Catering & Conference Center, Naval Air Station Patuxent. Physical address is 46870 Tate Road ­ Bldg 2815, Patuxent River, MD. 20670. REC&C (301) 342-6210. From River For mapping GPS program reference, Lexington Park, MD is the town just outside the base gates

  14. Numerical methods in heat transfer

    SciTech Connect (OSTI)

    Emery, A.F.; Douglass, R.W.

    1988-01-01T23:59:59.000Z

    This book contains nine papers. Some of the titles are: Numerical calculation of bubble growth in nucleate boiling from inception through departure; An evaluation of a translator for finite element data to resistor/capacitor data for the heat diffusion; Thermophoretic deposition due to jet impingement on an inclined plane; and A three-dimensional boundary-fitted coordinate system.

  15. Review of mineral estate of the United States at Naval Petroleum Reserve No. 2, Buena Vista Hills Field, Kern County, California

    SciTech Connect (OSTI)

    NONE

    1996-08-09T23:59:59.000Z

    The purpose of this report is to present this Consultant`s findings regarding the nature and extent of the mineral estate of the United States at National Petroleum Reserve No. 2 (NPR-2), Buena Vista Hills Field, Kern County, California. Determination of the mineral estate is a necessary prerequisite to this Consultant`s calculation of estimated future cash flows attributable to said estate, which calculations are presented in the accompanying report entitled ``Phase II Final Report, Study of Alternatives for Future Operations of the Naval Petroleum and Oil Shale Reserves, NPR-2, California.`` This Report contains a discussion of the leases in effect at NPR-2 and subsequent contracts affecting such leases. This Report also summarizes discrepancies found between the current royalty calculation procedures utilized at NPR-2 and those procedures required under applicable agreements and regulations. Recommendations for maximizing the government`s income stream at NPR-2 are discussed in the concluding section of this Report.

  16. Assessment of impacts and evaluation of restoration methods on areas affected by a well blowout, Naval Petroleum Reserve No. 1, California

    SciTech Connect (OSTI)

    Warrick, G.D.; Kato, T.T.; Phillips, M.V. [and others

    1996-12-01T23:59:59.000Z

    In June 1994, an oil well on Naval Petroleum Reserve No. 1 blew-out and crude oil was deposited downwind. After the well was capped, information was collected to characterize the release and to assess effects to wildlife and plants. Oil residue was found up to 13.7 km from the well site, but deposition was relatively light and the oil quickly dried to form a thin crust on the soil surface. Elevated levels of hydrocarbons were found in livers collected from Heermann`s kangaroo rats (Dipodomys heermanni) from the oiled area but polycyclic aromatic hydrocarbons (known carcinogens or mutagens) were not detected in the livers. Restoration techniques (surface modification and bioremediation) and natural recovery were evaluated within three portions of the oiled area. Herbaceous cover and production, and survival and vigor of desert saltbush (Atriplex polycarpa) were also monitored within each trapping grid.

  17. Operating and maintenance experience with a 6-kW wind energy conversion system at Naval Station, Treasure Island, California. Technical note Sep 79-Jun 81

    SciTech Connect (OSTI)

    Pal, D.

    1982-07-01T23:59:59.000Z

    The experience gained and lessons learned from the 6-kW grid-integrated Wind Energy Conversion System (WECS) demonstration at Naval Station, Treasure Island, San Francisco Bay are detailed. The objective of this demonstration was to develop operating experience and maintenance information on the 6-kW WECS using a combination of permanent magnet alternator with a line commutated synchronous inverter. The on-site measurements conducted during the demonstation indicate that the WECS site has annual average windspeeds of about 8 to 10 mph. The test results to data indicate a satisfactory performance of the WECS except for two failures involving arcing at the electrical terminals located on the yaw shaft. Due to wind characteristics encountered at the site, the performance data collected to date are at windspeeds of 20 mph or lower. For evaluating the WECS performance at all windspeeds, location at a windier site with annual average windspeeds of 14 mph or higher is recommended.

  18. Numerical bifurcation analysis of piecewise smooth systems

    E-Print Network [OSTI]

    ( ) ( ) ( ) ( ), , outoutinin inin xffxff xhhxgg xxxx == == #12;Numerical bifurcation analysis of piecewise smooth systems INRIA

  19. Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station. Interim report, 1992 cooling season

    SciTech Connect (OSTI)

    Armstrong, P.R.; Conover, D.R.

    1993-05-01T23:59:59.000Z

    In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

  20. Numerical integration of variational equations

    E-Print Network [OSTI]

    Ch. Skokos; E. Gerlach

    2010-09-29T23:59:59.000Z

    We present and compare different numerical schemes for the integration of the variational equations of autonomous Hamiltonian systems whose kinetic energy is quadratic in the generalized momenta and whose potential is a function of the generalized positions. We apply these techniques to Hamiltonian systems of various degrees of freedom, and investigate their efficiency in accurately reproducing well-known properties of chaos indicators like the Lyapunov Characteristic Exponents (LCEs) and the Generalized Alignment Indices (GALIs). We find that the best numerical performance is exhibited by the \\textit{`tangent map (TM) method'}, a scheme based on symplectic integration techniques which proves to be optimal in speed and accuracy. According to this method, a symplectic integrator is used to approximate the solution of the Hamilton's equations of motion by the repeated action of a symplectic map $S$, while the corresponding tangent map $TS$, is used for the integration of the variational equations. A simple and systematic technique to construct $TS$ is also presented.

  1. Numerical simulation of hydraulic fracturing

    E-Print Network [OSTI]

    Warner, Joseph Barnes

    1987-01-01T23:59:59.000Z

    ~ared that the results of such treatments were not always adequately described by the two-dimensional models. With recent advances in hydraulic fracturing and computing technology, attempts have been made to formulate more realistic fracture models. These three...NUMERICAL SIMULATION OF HYDRAULIC FRACTURING A Thesis by JOSEPH BARNES WARNER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1987 Maj or Subj ect...

  2. Updated 2-09 Simon Chang

    E-Print Network [OSTI]

    and atmospheric effects on naval weapon systems, and to develop numerical analysis and prediction systems. Dr

  3. Numerical calculation of Green's functions

    E-Print Network [OSTI]

    Urrea-Beltran, Julian

    1975-01-01T23:59:59.000Z

    , for his assistance in the preparation of this thesis, and Dr. Francis J. Narcowich and Dr. Phillip J. Green for serving as members of my committee. I am also grateful to Dr. Norman W. Naugle for hia guidance in using the Hewlett Packard Computer... concerning the numerical results (V) are given. The computations were done on the IBM 360 of Texas A&M University and the graphs on the Hewlett Packard 9830A digital computer of the Mathematics Department. The citations on the following pages follow...

  4. Disruptive Innovation in Numerical Hydrodynamics

    SciTech Connect (OSTI)

    Waltz, Jacob I. [Los Alamos National Laboratory

    2012-09-06T23:59:59.000Z

    We propose the research and development of a high-fidelity hydrodynamic algorithm for tetrahedral meshes that will lead to a disruptive innovation in the numerical modeling of Laboratory problems. Our proposed innovation has the potential to reduce turnaround time by orders of magnitude relative to Advanced Simulation and Computing (ASC) codes; reduce simulation setup costs by millions of dollars per year; and effectively leverage Graphics Processing Unit (GPU) and future Exascale computing hardware. If successful, this work will lead to a dramatic leap forward in the Laboratory's quest for a predictive simulation capability.

  5. Class Generation for Numerical Wind Atlases

    E-Print Network [OSTI]

    Class Generation for Numerical Wind Atlases Risø National Laboratory Wind Energy Department and The Technical University of Denmark Informatics and Mathematical Modelling Department Nicholas J. Cutler s000144 Constructing a Numerical Wind Atlas 5 2.1 Introduction

  6. Naval Petroleum and Oil Shale Reserve. Hearing before the Subcommittee on Preparedness of the Committee on Armed Services, United States Senate, Ninety-Eighth Congress, First Session on S. 1810, September 29, 1983

    SciTech Connect (OSTI)

    Not Available

    1984-01-01T23:59:59.000Z

    Captain Myron E. Smith, Jr., Director of the DOE Office of Naval Petroleum and Oil Shale Reserves, testified at a hearing on S. 1810, which authorizes funds relating to the petroleum and oil shale reserves. Smith reviewed revenues and expenditures since legislation was passed in 1976, noting that production at Elk Hills and Teapot Dome are at peak levels, in his justification of the budget request of $266.1 million. Questions from the committee and Smith's responses follow his formal testimony.

  7. Simulating Reionization in Numerical Cosmology

    E-Print Network [OSTI]

    Aaron Sokasian; Tom Abel; Lars E. Hernquist

    2001-05-10T23:59:59.000Z

    The incorporation of radiative transfer effects into cosmological hydrodynamical simulations is essential for understanding how the intergalactic medium (IGM) makes the transition from a neutral medium to one that is almost fully ionized. Here, we present an approximate numerical method designed to study in a statistical sense how a cosmological density field is ionized by a set of discrete point sources. A diffuse background radiation field is also computed self-consistently in our procedure. The method requires relatively few time steps and can be employed with simulations having high resolution. We describe the details of the algorithm and provide a description of how the method can be applied to the output from a pre-existing cosmological simulation to study the systematic reionization of a particular ionic species. As a first application, we compute the reionization of He II by quasars in the redshift range 3 to 6.

  8. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2005; 12:683

    E-Print Network [OSTI]

    NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2005; 12:683 Published Numerical Linear Algebra and its Applications The fourth workshop of the ERCIM Working Group on `Matrix Computations and Statistics' and the First International workshop on `Numerical Linear Algebra and its

  9. Naval Petroleum and Oil Shale Reserves Combined Financial Statements September 30, 1994 and 1993 and Management Overview and Supplemental Financial and Management Information

    SciTech Connect (OSTI)

    NONE

    1994-12-31T23:59:59.000Z

    This report presents the results of the independent certified public accountant`s audit of the Department of Energy`s (Department) Naval Petroleum and Oil Shale Reserves (NPOSR) financial statements as of September 30, 1994. The auditors have expressed an unqualified opinion on the 1994 statements. Their reports on the NPOSR internal control structure and on compliance with laws and regulations, and management letter on addressing needed improvements are also provided. NPOSR consists of petroleum reserves in California and Wyoming, and oil shale reserves in Colorado and Utah. The Government`s interests in NPOSR are managed by the Department through its headquarters office in Washington, D.C. In addition, the Department has site offices in both California and Wyoming that are responsible for contractor oversight functions. Daily operations are conducted under contract by two management and operating contractors. By law, NPOSR was authorized to produce crude oil at the maximum efficient rate for six years. The law allowed production to be extended for three year periods, provided that the President of the United States certified that continued maximum production was in the best interest of the nation. The current three year period ends on April 5, 1997. Additional information about NPOSR is provided in the overview and notes to the financial statements.

  10. LETTER REPORT. INDEPENDENT CONFIRMATORY SURVEY RESULTS OF SOILS ASSOCIATED WITH THE ARGYLE STREET SEWER LINE AT THE UNITED NUCLEAR CORPORATION NAVAL PRODUCTS SITE, NEW HAVEN, CONNECTICUT

    SciTech Connect (OSTI)

    Adams, Wade C.

    2012-01-24T23:59:59.000Z

    Oak Ridge Institute for Science and Education (ORISE) personnel visited the United Nuclear Corporation (UNC) Naval Products site on three separate occasions during the months of October and November 2011. The purpose of these visits was to conduct confirmatory surveys of soils associated with the Argyle Street sewer line that was being removed. Soil samples were collected from six different, judgmentally determined locations in the Argyle Street sewer trench. In addition to the six soil samples collected by ORISE, four replicate soil samples were collected by Cabrera Services, Inc. (CSI) for analysis by the ORISE laboratory. Replicate samples S0010 and S0011 were final status survey (FSS) bias samples; S0012 was an FSS systematic sample; and S0015 was a waste characterization sample. Six soil samples were also collected for background determination. Uranium-235 and uranium-238 concentrations were determined via gamma spectroscopy; the spectra were also reviewed for other identifiable photopeaks. Radionuclide concentrations for these soil samples are provided. In addition to the replicate samples and the samples collected by ORISE, CSI submitted three soil samples for inter-laboratory comparison analyses. One sample was from the background reference area, one was from waste characterization efforts (material inside the sewer line), and one was a FSS sample. The inter-laboratory comparison analyses results between ORISE and CSI were in agreement, except for one sample collected in the reference area. Smear results For Argyle Street sewer pipes are tabulated.

  11. Reservoir analysis study, Naval Petroleum Reserve No. 1, Elk Hills Field, Kern County, California: Phase 3 report, economic development and production plan

    SciTech Connect (OSTI)

    Not Available

    1988-07-01T23:59:59.000Z

    Jerry R. Bergeson and Associates, Inc. (Bergeson) has completed Phase 3 of the Reservoir Analysis, Naval Petroleum Reserve Number 1, Elk Hills Oilfield, California. The objective of this phase of the study was to establish the economic potential for the field by determining the optimum economic plan for development and production. The optimum economic plan used net cash flow analysis to evaluate future expected Department of Energy revenues less expenses and investments for proved developed, proved undeveloped, probable, possible and possible-enhanced oil recovery (EOR) reserves assigned in the Phase 2 study. The results of the Phase 2 study were used to define future production flowstreams. Additional production scheduling was carried out to evaluate accelerated depletion of proved developed reserves in the 29R, 31 C/D Shale and Northwest Stevens T Sand/N Shale Reservoirs. Production, cost and investment schedules were developed for the enhanced oil recovery projects identified in Phase 2. Price forecasts were provided by the Department of Energy. Operating costs and investment requirements were estimated by Bergeson. 4 figs., 48 tabs.

  12. Results of preconstruction surveys used as a management technique for conserving endangered species and their habitats on Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California

    SciTech Connect (OSTI)

    Kato, T.T.; O'Farrell, T.P.; Johnson, J.W.

    1985-08-01T23:59:59.000Z

    In 1976 an intensive program of petroleum production at maximum efficient rate was initiated on the US Department of Energy's (DOE) Naval Petroleum Reserve No. 1 (Elk Hills) in western Kern County, California. In a Biological Opinion required by the Endangered Species Act, the US Fish and Wildlife Service concluded that proposed construction and production activities may jeopardize the continued existence of the endangered San Joaquin kit fox, Vulpes macrotis mutica, and the blunt-nosed leopard lizard, Gambelia silus, inhabiting the Reserve. DOE committed itself to carrying out a compensation/mitigation plan to offset impacts of program activities on endangered species and their habitats. One compensation/mitigation strategy was to develop and implement preconstruction surveys to assess potential conflicts between proposed construction activities, and endangered species and their critical habitats, and to propose reasonable and prudent alternatives to avoid conflicts. Between 1980 and 1984, preconstruction surveys were completed for 296 of a total of 387 major construction projects encompassing 3590 acres. Fewer than 22% of the projects potentially conflicted with conservation of endangered species, and most conflicts were easily resolved by identifying sensitive areas that required protection. Only 8% of the projects received minor modification in their design or locations to satisfy conservation needs, and only three projects had to be completely relocated. No projects were cancelled or delayed because of conflicts with endangered species, and costs to conduct preconstruction surveys were minimal. 27 refs., 9 figs., 2 tabs.

  13. Study of alternatives for future operations of the naval petroleum and oil shale reserves, NOSR-2, Uintah and Carbon Counties, Utah. Final report

    SciTech Connect (OSTI)

    NONE

    1996-12-01T23:59:59.000Z

    The US Department of Energy (DOE) has asked Gustavson Associates, Inc. to serve as an Independent Petroleum Consultant and authorized a study and recommendations regarding future development of Naval Oil Shale Reserve No. 2 (NOSR-2) in Uintah and Carbon Counties, Utah. The US owns 100% of the mineral rights and about 60% of the surface rights in NOSR-2. The Ute Indian Tribe owns the other 40% of the surface. This 88,890-acre tract was set aside as an oil shale reserve for the US Navy by an Executive Order of President Wilson in 1916. Management of NOSR-2 is the responsibility of DOE. No drilling for oil and gas has occurred on the property and no production has been established. No reserves are present, although the area is hypothesized to overlay gas resources. Mapping by the US Geological Survey and others has resulted in speculative seismic leads for structures that may or may not hold conventional oil and gas. All of the mineral rights (including oil shale) must be considered exploratory and the mineral rights must be valued accordingly. The opinion recommended to maximize value to the US is Option 4, sale of the interest of the US of all or part of NOSR-2. Evaluation of this option results in an estimated value which is more than three times greater than the next highest estimated value, for Option 2, transfer to the Department of the Interior for leasing.

  14. Environmental assessment of a proposed steam flood of the Shallow Oil Zone, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California

    SciTech Connect (OSTI)

    Not Available

    1985-01-01T23:59:59.000Z

    The US Department of Energy proposes to develop a limited enhanced oil recovery project in the Shallow Oil Zone at Naval Petroleum Reserve No. 1 (NPR-1) Elk Hills. The project would employ steam forced into the oil-bearing formation through injector wells, and would involve two phases. The initiation of the second phase would be dependent on the economic success of the first phase. The total project would require the drilling of 22 new wells in a 45-acre area supporting seven existing production wells. It would also require construction of various surface facilities including a tank setting (gas-oil separation system), steam generators, and a water treatment plant. Adverse environmental impacts associated with the proposed steam flood project would include the effects on vegetation, wildlife and land-use resulting from the total reconfiguration of the topography within the project bondaries. Other adverse impacts include the emission of oxides of nitrogen, carbon monoxide, hydrocarbons and particulates from steam generators, vehicles and associated surface facilities. Minor adverse impacts include localized noise and dust during constuction, and reduction of visual quality. 48 refs., 7 figs., 10 tabs.

  15. Report on inspection of concerns regarding DOE`s evaluation of Chevron USA`s unsolicited proposal for the Elk Hills Naval Petroleum Reserve

    SciTech Connect (OSTI)

    NONE

    1997-11-17T23:59:59.000Z

    An allegation was made to the Office of Inspector General (OIG) that the integrity of the Department of Energy`s (DOE) unsolicited proposal review process may have been compromised by the actions of a former Deputy Secretary of Energy and his Executive Assistant during the review of an unsolicited proposal received from Chevron U.S.A. Production Company (Chevron) in may 1993. The Chevron unsolicited proposal was for the management and operation of DOE`s Elk Hills Naval Petroleum Reserve (Elk Hills), located near Bakersfield, California. Chevron submitted the unsolicited proposal on May 19, 1993. DOE formally rejected Chevron`s unsolicited proposal in May 1995. Although Chevron`s unsolicited proposal was eventually rejected by DOE, the complainant specifically alleged that the {open_quotes}sanctity, integrity, and sensitivity{close_quotes} of the unsolicited proposal review process had been breached in meetings during the Fall of 1993 between Chevron officials, the Deputy Secretary of Energy (Deputy Secretary), and his Executive Assistant. Based on our review of the allegation, we identified the following issue as the focus of our inspection.

  16. Design of a model propulsor for a boundary layer ingesting aircraft

    E-Print Network [OSTI]

    Grasch, Adam D. (Adam Davis)

    2013-01-01T23:59:59.000Z

    This thesis presents contributions to the analysis and design of propulsion simulators for 1:11 and 1:4 scale model wind tunnel investigations of an advanced civil transport aircraft with boundary layer ingestion (BLI). ...

  17. PROPULSOR THRUST VECTORING THROUGH STATOR-INDUCED CIRCUMFERENTIALLY-VARYING PRESWIRL

    E-Print Network [OSTI]

    Salama, Khaled

    maneuvering and stealthy propulsion system for torpedoes and unmanned underwater vehicles. The idea would system. In Underwater Unmanned Vehicles (UUVs) it would provide the potential ability of produce more and allowing all the vehicle control to come from the propulsion system. Through dynamically

  18. Numerical Simulations of Thermobaric Explosions

    SciTech Connect (OSTI)

    Kuhl, A L; Bell, J B; Beckner, V E; Khasainov, B

    2007-05-04T23:59:59.000Z

    A Model of the energy evolution in thermobaric explosions is presented. It is based on the two-phase formulation: conservation laws for the gas and particle phases along with inter-phase interaction terms. It incorporates a Combustion Model based on the mass conservation laws for fuel, air and products; source/sink terms are treated in the fast-chemistry limit appropriate for such gas dynamic fields. The Model takes into account both the afterburning of the detonation products of the booster with air, and the combustion of the fuel (Al or TNT detonation products) with air. Numerical simulations were performed for 1.5-g thermobaric explosions in five different chambers (volumes ranging from 6.6 to 40 liters and length-to-diameter ratios from 1 to 12.5). Computed pressure waveforms were very similar to measured waveforms in all cases - thereby proving that the Model correctly predicts the energy evolution in such explosions. The computed global fuel consumption {mu}(t) behaved as an exponential life function. Its derivative {dot {mu}}(t) represents the global rate of fuel consumption. It depends on the rate of turbulent mixing which controls the rate of energy release in thermobaric explosions.

  19. February 25, 2005 NUMERICAL ENERGY CONSERVATION FOR

    E-Print Network [OSTI]

    Tübingen, Universität

    February 25, 2005 NUMERICAL ENERGY CONSERVATION FOR MULTI­FREQUENCY OSCILLATORY DIFFERENTIAL systems, modulated Fourier expansion, energy conservation, oscillatory solutions. 1 Introduction

  20. February 6, 2004 NUMERICAL ENERGY CONSERVATION FOR

    E-Print Network [OSTI]

    Hairer, Ernst

    February 6, 2004 NUMERICAL ENERGY CONSERVATION FOR MULTI­FREQUENCY OSCILLATORY DIFFERENTIAL, Hamiltonian systems, modulated Fourier expansion, energy conservation, oscillatory solutions. 1 Introduction

  1. Adjoint Sensitivity Analysis for Numerical Weather Prediction

    E-Print Network [OSTI]

    Alexandru Cioaca

    2011-09-02T23:59:59.000Z

    Sep 2, 2011 ... Adjoint Sensitivity Analysis for Numerical Weather Prediction: Applications to Power Grid Optimization. Alexandru Cioaca(alexgc ***at*** vt.edu)

  2. Audit of controls over crude oil production under Public Law 94-258 Naval Petroleum Reserve No. 1, Elk Hills, California. [Compliance with legislation

    SciTech Connect (OSTI)

    Not Available

    1986-04-25T23:59:59.000Z

    The Naval Petroleum Reserves Production Act of 1976 (Public Law 94-258) requires the Secretary to produce oil and gas from the Reserve at the Maximum Efficient Rate (MER) developed consistent with sound engineering practices. MER is defined as ''the maximum sustainable daily oil or gas rate from a reservoir which will permit economic development and depletion of that reservoir without detriment to the ultimate recovery.'' MER is determined through analyses and calculations using defined factors and parameters acquired through standard oil field testing procedures. Economic development and depletion of a reservoir without detriment to ultimate recovery means that production rates should not cause loss of originally obtainable petroleum and that revenues should exceed the cost of production. The purpose of the audit was to determine if the Department had adhered to the MER limitation on production at the Reserve as required by Public Law 94-258. Our review disclosed that production rates at the Reserve were not developed through engineering-based MER calculations. Production for the past seven years has exceeded the MER calculated by the Reserve's own engineers and principal consultants. According to studies prepared by the Department's technical engineers and consultants, between 90 and 130 million barrels of otherwise recoverable oil is at risk of being lost through overproduction over the life of the Reserve. Based on the average market value of $18 per barrel on March 6, 1986, the value of this oil was between $1.60 billion and $2.30 billion. We estimate that about half of the oil at risk of loss could yet be recovered if Reserve management develops and implements valid engineering-based MERs. 11 refs.

  3. Results of analyses of fur samples from the San Joaquin Kit Fox and associated soil and water samples from the Naval Petroleum Reserve No. 1, Tupman, California

    SciTech Connect (OSTI)

    Suter, G.W. II; Rosen, A.E.; Beauchamp, J.J. [Oak Ridge National Lab., TN (United States); Kato, T.T. [EG and G Energy Measurements, Inc., Tupman, CA (United States)

    1992-12-01T23:59:59.000Z

    The purpose of this study was to determine whether analysis of the elemental content of fur from San Joaquin kit foxes (Vulpes macrotis mutica) and of water and soil from kit fox habitats could be used to make inferences concerning the cause of an observed decline in the kit fox population on Naval Petroleum Reserve No. 1 (NPR-1). Fur samples that had been collected previously from NPR-1, another oil field (NPR-2), and two sites with no oil development were subjected to neutron activation analysis. In addition, soil samples were collected from the home ranges of individual foxes from undisturbed portions of major soil types on NPR-1 and from wastewater samples were collected from tanks and sumps and subjected to neutron activation analysis. Most elemental concentrations in fur were highest at Camp Roberts and lowest on the undeveloped portions of NPR-I. Fur concentrations were intermediate on the developed oil fields but were correlated with percent disturbance and with number of wells on NPR-1 and NPR-2. The fact that most elements covaried across the range of sites suggests that some pervasive source such as soil was responsible. However, fur concentrations were not correlated with soft concentrations. The kit foxes on the developed portion of NPR-1 did not have concentrations of elements in fur relative to other sites that would account for the population decline in the early 1980s. The oil-related elements As, Ba, and V were elevated in fox fur from oil fields, but only As was sufficiently elevated to suggest a risk of toxicity in individual foxes. However, arsenic concentrations suggestive of sublethal toxicity were found in only 0.56% of foxes from developed oil fields, too few to account for a population decline.

  4. Distribution, abundance, and habitat use of the endangered blunt-nosed leopard lizard on the Naval Petroleum Reserves, Kern County, California

    SciTech Connect (OSTI)

    Kato, T.T.; Rose, B.R.; O'Farrell, T.P.

    1987-09-01T23:59:59.000Z

    The distribution, abundance, and habitat use of the endangered blunt-nosed leopard lizard, Gambelia silus, was studied on and adjacent to Naval Petroleum Reserves No. 1 (NPR-1, Elk Hills), and No. 2 (NPR-2, Buena Vista), Kern County, CAlifornia. A total of 262 blunt-nosed leopard lizards were seen over 8 years (1979-1987) in 28 sections of NPR-1, 15 sections of NPR-2, and 10 sections adjacent to the petroleum reserves. All but one were in areas of gentle or flat relief with sparse annual ground cover. Home range size and overlap, activity patterns, and habitat use were determined from monitoring blunt-nosed leopard lizards fitted with miniature radiocollars on two study sites. Mean home range size estimated by the minimum polygon method was 2.7 acres for female blunt-nosed leopard lizards, which was significantly smaller than the 5.4 acres mean home range size for males inhabiting a major wash. The structure of the habitat affected significantly the lizards' activity and burrow use. Lizards inhabiting the wash study site were more frequently seen on the surface not associated with a burrow than lizards in the more sparsely vegetated grassland study site (63% compared with 48% of their sightings); 51.5% of the sightings for lizards in the grassland study site were associated with burrows, compared with 37.1% for lizards in the wash study site. Burrows were not shared and some burrows were used more than once (30% of burrows and 62% of burrow sightings).

  5. Final sitewide environmental assessment for preparation for transfer of ownership of Naval Petroleum Reserve No. 3 (NPR-3), Natrona County, Wyoming

    SciTech Connect (OSTI)

    NONE

    1998-04-01T23:59:59.000Z

    The Secretary of Energy is authorized to produce the Naval Petroleum Reserves No. 3 (NPR-3) at its maximum efficient rate (MER) consistent with sound engineering practices, for a period extending to April 5, 2000 subject to extension. Production at NPR-3 peaked in 1981 and has declined since until it has become a mature stripper field, with the average well yielding less than 2 barrels per day. The Department of Energy (DOE) has decided to discontinue Federal operation of NPR-3 at the end of its life as an economically viable oilfield currently estimated to be 2003. Although changes in oil and gas markets or shifts in national policy could alter the economic limit of NPR-3, it productive life will be determined largely by a small and declining reserve base. DOE is proposing certain activities over the next six years in anticipation of the possible transfer of NPR-3 out of Federal operation. These activities would include the accelerated plugging and abandoning of uneconomic wells, complete reclamation and restoration of abandoned sites including dismantling surface facilities, batteries, roads, test satellites, electrical distribution systems and associated power poles, when they are no longer needed for production, and the continued development of the Rocky Mountain Oilfield Testing Center (RMOTC). DOE has prepared this environmental assessment that analyzes the proposed plugging and abandonment of wells, field restoration and development of RMOTC. Based on the analysis in the EA, the DOE finds that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). The preparation of an environmental impact statement is not required, and DOE is issuing this Finding of No Significant Impact (FONSI).

  6. The Joint Essential Numerical Range of operators

    E-Print Network [OSTI]

    Li, Chi-Kwong

    The Joint Essential Numerical Range of operators: Convexity and Related Results Chi-Kwong Li Classification 47A12, 47A13, 47A55. Keywords Joint essential numerical range, self-adjoint operator, Hilbert the joint behavior of several operators A1, . . . , Am. One may see [1, 5, 12, 14, 15, 16, 19, 23, 28, 31

  7. Numerical Simulation of Cooling Gas Injection Using

    E-Print Network [OSTI]

    Numerical Simulation of Cooling Gas Injection Using Adaptive Multiscale Techniques Wolfgang Dahmen: finite volume method, film cooling, cooling gas injection, multiscale techniques, grid adaptation AMS@igpm.rwth-aachen.de (Thomas Gotzen) #12;Numerical simulation of cooling gas injection using adaptive multiscale techniques

  8. Numerical Study of a Turbulent Hydraulic Jump

    E-Print Network [OSTI]

    Zhao, Qun

    Numerical Study of a Turbulent Hydraulic Jump Qun Zhao, Shubhra Misra, Ib. A. Svendsen and James T of a Turbulent Hydraulic Jump ­ p.1/14 #12;Objective Our ultimate goal is to study the breaking waves. Numerical Study of a Turbulent Hydraulic Jump ­ p.2/14 #12;A moving bore Qiantang Bore China (Courtesy of Dr J

  9. Nonclassicality thresholds for multiqubit states: Numerical analysis

    SciTech Connect (OSTI)

    Gruca, Jacek; Zukowski, Marek [Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk (Poland); Laskowski, Wieslaw [Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk (Poland); Fakultaet fuer Physik, Ludwig-Maximilians Universitaet Muenchen, D-80799 Muenchen (Germany); Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany); Kiesel, Nikolai [Faculty of Physics, University of Vienna, A-1090 Vienna (Austria); Wieczorek, Witlef; Weinfurter, Harald [Fakultaet fuer Physik, Ludwig-Maximilians Universitaet Muenchen, D-80799 Muenchen (Germany); Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany); Schmid, Christian [Fakultaet fuer Physik, Ludwig-Maximilians Universitaet Muenchen, D-80799 Muenchen (Germany); Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany); European Organisation for Astronomical Research in the Southern Hemisphere, D-85748 Garching (Germany)

    2010-07-15T23:59:59.000Z

    States that strongly violate Bell's inequalities are required in many quantum-informational protocols as, for example, in cryptography, secret sharing, and the reduction of communication complexity. We investigate families of such states with a numerical method which allows us to reveal nonclassicality even without direct knowledge of Bell's inequalities for the given problem. An extensive set of numerical results is presented and discussed.

  10. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING Int. J. Numer. Meth. Biomed. Engng. (2012)

    E-Print Network [OSTI]

    Buscaglia, Gustavo C.

    2012-01-01T23:59:59.000Z

    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING Int. J. Numer. Meth. Biomed iterative coupling of dimen- sionally heterogeneous flow models in computational hemodynamics. INTRODUCTION In recent years, several efforts have been directed at integrating different mathematical models

  11. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2011; 18:961980

    E-Print Network [OSTI]

    De Sterck, Hans

    NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2011; 18:961­980 Published aggregation method of [1], and the Markov chain algebraic multigrid (MCAMG) method of [3] using the OTF

  12. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2005; 64:10781110

    E-Print Network [OSTI]

    West, Matthew

    momentum and energy conservation characteristics, as several numerical examples demonstrate. Copyright 2005INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2005; 64Center for Advanced Computing Research, California Institute of Technology, Mail Code 158-79, Pasadena

  13. Naval Petroleum Reserve. Hearing before the Subcommittee on Fossil and Synthetic Fuels of the Committee on Energy and Commerce, House of Representatives, Ninety-Seventh Congress, First Session, November 3, 1981

    SciTech Connect (OSTI)

    Not Available

    1982-01-01T23:59:59.000Z

    A November 3, 1981 hearing reviewed President Reagan's proposal to continue the 180,000 barrels per day of oil and 320 million cubic foot per day of gas production at the Elk Hills, California Naval Petroleum Reserve No. 1. Without approval by both Houses, production will automatically be reduced to the minimum level. At issue are national security, the value of $2 billion in receipts from Elk Hills oil sales, and the local impacts of a decision to continue or reduce production. The statements of 11 witnesses from the public and private sectors are followed by additional materials submitted for the record. (DCK)

  14. Toward standard testbeds for numerical relativity

    E-Print Network [OSTI]

    Miguel Alcubierre; Gabrielle Allen; Carles Bona; David Fiske; Tom Goodale; F. Siddharta Guzman; Ian Hawke; Scott H. Hawley; Sascha Husa; Michael Koppitz; Christiane Lechner; Denis Pollney; David Rideout; Marcelo Salgado; Erik Schnetter; Edward Seidel; Hisa-aki Shinkai; Bela Szilagyi; Deirdre Shoemaker; Ryoji Takahashi; Jeffrey Winicour

    2003-05-06T23:59:59.000Z

    In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that have plagued the numerical relativity community for decades. Some of these approaches have been tested on different spacetimes, and conclusions have been drawn based on these tests. However, differences in results originate from many sources, including not only formulations of the equations, but also gauges, boundary conditions, numerical methods, and so on. We propose to build up a suite of standardized testbeds for comparing approaches to the numerical evolution of Einstein's equations that are designed to both probe their strengths and weaknesses and to separate out different effects, and their causes, seen in the results. We discuss general design principles of suitable testbeds, and we present an initial round of simple tests with periodic boundary conditions. This is a pivotal first step toward building a suite of testbeds to serve the numerical relativists and researchers from related fields who wish to assess the capabilities of numerical relativity codes. We present some examples of how these tests can be quite effective in revealing various limitations of different approaches, and illustrating their differences. The tests are presently limited to vacuum spacetimes, can be run on modest computational resources, and can be used with many different approaches used in the relativity community.

  15. NAVAL POSTGRADUATESCHOOL Monterey,California

    E-Print Network [OSTI]

    PARTICLE DETECTORS AND THE ELECTRIC F I E L D EXPERI- MENT. I T WAS FOUND THAT THE ELECTRIC F I E L DV) RESULTED I N * 10 TO -50 V SATELLITE POTENTIALS. TRICKLE MODE ( 2 0 - 8 0 m A , NO ACCEL VOLTAGE

  16. NAVAL POSTGRADUATE SCHOOL Monterey, California

    E-Print Network [OSTI]

    Chu, Peter C.

    analyzing the output, it became clear that the GDEM data predicted a weapon effectiveness that was far FOR WEAPON PRESETS by Michael D. Perry June 2003 Thesis Advisor: Peter Chu Second Reader: Eric Gottshall. TITLE AND SUBTITLE: Title (Mix case letters) Value Aided Satellite Altimetry Data for Weapon Presets 6

  17. NAVAL POSTGRADUATE SCHOOL Monterey, California

    E-Print Network [OSTI]

    -by-step fabrication of a thermonuclear device. Recognizing the potential for misuse as well as for informing

  18. Provably Efficient Algorithms for Numerical Tensor Edgar Solomonik

    E-Print Network [OSTI]

    California at Berkeley, University of

    Provably Efficient Algorithms for Numerical Tensor Algebra Edgar Solomonik Electrical Engineering for Numerical Tensor Algebra by Edgar Solomonik A dissertation submitted in partial satisfaction-Gordon Fall 2014 #12;Provably Efficient Algorithms for Numerical Tensor Algebra Copyright 2014 by Edgar

  19. KWIC Index for Numerical Linear Algebra

    SciTech Connect (OSTI)

    Carpenter, J.A.

    1983-07-01T23:59:59.000Z

    This report is a sequel to ORNL/CSD-106 in the ongoing supplements to Professor A.S. Householder's KWIC Index for Numerical Algebra. Beginning with the previous supplement, the subject has been restricted to Numerical Linear Algebra, roughly characterized by the American Mathematical Society's classification sections 15 and 65F but with little coverage of infinite matrices, matrices over fields of characteristics other than zero, operator theory, optimization and those parts of matrix theory primarily combinatorial in nature. Some consideration is given to the uses of graph theory in Numerical Linear Algebra, particularly with respect to algorithms for sparse matrix computations. The period covered by this report is roughly the calendar year 1982 as measured by the appearance of the articles in the American Mathematical Society's Contents of Mathematical Publications lagging actual appearance dates by up to nearly half a year. The review citations are limited to the Mathematical Reviews (MR).

  20. High performance computing and numerical modelling

    E-Print Network [OSTI]

    ,

    2014-01-01T23:59:59.000Z

    Numerical methods play an ever more important role in astrophysics. This is especially true in theoretical works, but of course, even in purely observational projects, data analysis without massive use of computational methods has become unthinkable. The key utility of computer simulations comes from their ability to solve complex systems of equations that are either intractable with analytic techniques or only amenable to highly approximative treatments. Simulations are best viewed as a powerful complement to analytic reasoning, and as the method of choice to model systems that feature enormous physical complexity such as star formation in evolving galaxies, the topic of this 43rd Saas Fee Advanced Course. The organizers asked me to lecture about high performance computing and numerical modelling in this winter school, and to specifically cover the basics of numerically treating gravity and hydrodynamics in the context of galaxy evolution. This is still a vast field, and I necessarily had to select a subset ...

  1. Developments in Petroleum Science, 6 FUNDAMENTALS OF NUMERICAL

    E-Print Network [OSTI]

    Santos, Juan

    Developments in Petroleum Science, 6 FUNDAMENTALS OF NUMERICAL RESERVOIR SIMULATION DONALD WCongressCatalogingin PublicationData Peaceman, Donald W Fundamentals of numerical reservoir simulation. (develrpents in petroleum

  2. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS Int. J. Numer. Meth. Fluids 2011; 00:123

    E-Print Network [OSTI]

    Buscaglia, Gustavo C.

    , magma chambers, fluid­fuel interactions, crude oil recovery, spray cans, sediment transport in riversINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS Int. J. Numer. Meth. Fluids 2011; 00 for the treatment of discontinuous pressures in multi­fluid flows Roberto F. Ausas1 , Gustavo C. Buscaglia1

  3. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2008; 15:115139

    E-Print Network [OSTI]

    De Sterck, Hans

    NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2008; 15:115­139 Published-two interpolation for parallel algebraic multigrid Hans De Sterck1, Robert D. Falgout2, Joshua W. Nolting3, Campus Box 526, Boulder, CO 80302, U.S.A. SUMMARY Algebraic multigrid (AMG) is one of the most efficient

  4. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng (2014)

    E-Print Network [OSTI]

    Leyendecker, Sigrid

    2014-01-01T23:59:59.000Z

    to ensure exact energy conservation in conservative systems, and the right rate of energy decayINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng (2014Computational Mechanics Group, California Institute of Technology, Mail Code 105-50, Pasadena, CA 91125, USA 2

  5. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2014; 100:871913

    E-Print Network [OSTI]

    Ortiz, Michael

    in order to ensure exact energy conservation in conservative systems, and the right rate of energy decayINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2014; 100,*, and M. Ortiz1 1Computational Mechanics Group, California Institute of Technology, Mail Code 105

  6. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2004; 61:24022427

    E-Print Network [OSTI]

    Jiao, Xiangmin "Jim"

    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2004; 61 Jiao and Michael T. Heath, Computational Science and Engineering, University of Illinois at Urbana, and combustion, in an efficient and accurate manner. The multidisciplinary nature of such systems suggests

  7. ENERGY CONSERVATION BY ORMERTYPE NUMERICAL INTEGRATORS

    E-Print Network [OSTI]

    Tübingen, Universität

    ENERGY CONSERVATION BY ST ¨ ORMER­TYPE NUMERICAL INTEGRATORS ERNST HAIRER \\Lambda AND CHRISTIAN the long­time energy conservation by a class of methods which integrate the linear part of oscillatory. HAIRER AND CH. LUBICH 2. Energy conservation by symmetric methods used with small step size

  8. Numerical Linear Algebra and Optimization on Facebook

    E-Print Network [OSTI]

    Sidorov, Nikita

    Numerical Linear Algebra and Optimization on Facebook: "In a relationship" or "It's complicated indicate their "relationship status" on Facebook (!!!). (I don't need to define Facebook, right?) #12;Facebook is close to ubiquitous (1.2 billion users in March 2014). 556 million people log on to Facebook

  9. Threedimensional numerical simulation for various geometries

    E-Print Network [OSTI]

    Herbin, Raphaèle

    modelling and numerical simulation of natural gas­fed solid oxide cells (Solid Oxide Fuel Cell, SOFC) at a stationary regime. The principle of a Solid Oxide Fuel Cell (SOFC) is based on the conversion of the chemical is taken into account in the present model. The SOFC systems seem to be of great interest for use

  10. Numerical Analysis Department Robustness improvement of

    E-Print Network [OSTI]

    Vuik, Kees

    Numerical Analysis Department Robustness improvement of polyhedral mesh method for airbag of polyhedral mesh method for airbag deployment simulations MASTER OF SCIENCE THESIS For the degree of Master entitled ROBUSTNESS IMPROVEMENT OF POLYHEDRAL MESH METHOD FOR AIRBAG DEPLOYMENT SIMULATIONS by SANTIAGO

  11. Two physical characteristics of numerical apparent horizons

    E-Print Network [OSTI]

    Ivan Booth

    2007-12-20T23:59:59.000Z

    This article translates some recent results on quasilocal horizons into the language of $(3+1)$ general relativity so as to make them more useful to numerical relativists. In particular quantities are described which characterize how quickly an apparent horizon is evolving and how close it is to either equilibrium or extremality.

  12. Symplectic numerical integration of Hamiltonian systems

    SciTech Connect (OSTI)

    Scovel, C.

    1989-09-11T23:59:59.000Z

    This paper describes some general techniques available for symplectic or Lie-Poisson integration and illustrate the results with some numerical computations. In this spirit, I also discuss reversible integration, equivariant integration, integration of volume preserving flows, and symplectic cellular automata. My intention is not to be exhaustive but to give a representative review. 76 refs., 5 figs.

  13. Numerical likelihood analysis of cosmic ray anisotropies

    SciTech Connect (OSTI)

    Carlos Hojvat et al.

    2003-07-02T23:59:59.000Z

    A numerical likelihood approach to the determination of cosmic ray anisotropies is presented which offers many advantages over other approaches. It allows a wide range of statistically meaningful hypotheses to be compared even when full sky coverage is unavailable, can be readily extended in order to include measurement errors, and makes maximum unbiased use of all available information.

  14. Numerical Valuation of Discrete Barrier Options with

    E-Print Network [OSTI]

    Chu, Hao-hua

    Numerical Valuation of Discrete Barrier Options with the Adaptive Mesh Model and Other Competing for discrete barrier options such that many methods have been suggested and declared to price discrete barrier options fast and accurately but no one can tell exactly that what method is the best. We also make

  15. NUMERICAL APPROACHES TO THERMALLY COUPLED PERFECT PLASTICITY

    E-Print Network [OSTI]

    Bartels, Soeren

    NUMERICAL APPROACHES TO THERMALLY COUPLED PERFECT PLASTICITY S¨OREN BARTELS AND TOM´AS ROUB at small strains exhibiting also stress-driven Prandtl-Reuss perfect plasticity are considered limit passage. Keywords: Thermodynamics, Prandtl-Reuss plasticity, Kelvin-Voigt rheology, thermal

  16. Fluid = particles A Conservative Numerical Scheme

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    of this continuum formulation will 'directly' lead to a discrete Hamiltonian scheme: HPM. · alternative is fully Lagrangian description, which can be discretized into SPH. · both HPM and SPH require some sort of smoothing to maintain accuracy over long-time integrations. Eulerian grid in HPM allows for efficient numerical

  17. RIS-M-2393 GANDALF -A GENERALLY APPLICABLE NUMERICAL DATA

    E-Print Network [OSTI]

    computer languages. INIS descriptors; DATA ACQUISITION; DATA PROCESSING; G CODES; NUMERICAL DATA UDC 681

  18. Applications of Numerical Optimal Control to Nonlinear Hybrid Systems

    E-Print Network [OSTI]

    Zefran, MiloÂ?

    , Eaton Corporation, Eden Prairie, Minnesota Abstract This paper develops a technique for numerically

  19. Property description and fact-finding report for NPR-3 Natrona County, Wyoming. Addendum to 22 August 1996 study of alternatives for future operations of the naval petroleum and oil shale reserves NPR-3

    SciTech Connect (OSTI)

    NONE

    1997-05-01T23:59:59.000Z

    The U.S. Department of Energy has asked Gustavson Associates, Inc. to serve as an Independent Petroleum Consultant under contract DE-AC01-96FE64202. This authorizes a study and recommendations regarding future development of Naval Petroleum Reserve No. 3 (NPR-3) in Natrona County, Wyoming. The report that follows is the Phase I fact-finding and property description for that study. The United States of America owns 100 percent of the mineral rights and surface rights in 9,321-acre NPR-3. This property comprises the Teapot Dome oil field and related production, processing and other facilities. Discovered in 1914, this field has 632 wells producing 1,807 barrels of oil per day. Production revenues are about $9.5 million per year. Remaining recoverable reserves are approximately 1.3 million barrels of oil. Significant plugging and abandonment (P&A) and environmental liabilities are present.

  20. PLUTO: a Numerical Code for Computational Astrophysics

    E-Print Network [OSTI]

    A. Mignone; G. Bodo; S. Massaglia; T. Matsakos; O. Tesileanu; C. Zanni; A. Ferrari

    2007-03-12T23:59:59.000Z

    We present a new numerical code, PLUTO, for the solution of hypersonic flows in 1, 2 and 3 spatial dimensions and different systems of coordinates. The code provides a multi-physics, multi-algorithm modular environment particularly oriented towards the treatment of astrophysical flows in presence of discontinuities. Different hydrodynamic modules and algorithms may be independently selected to properly describe Newtonian, relativistic, MHD or relativistic MHD fluids. The modular structure exploits a general framework for integrating a system of conservation laws, built on modern Godunov-type shock-capturing schemes. Although a plethora of numerical methods has been successfully developed over the past two decades, the vast majority shares a common discretization recipe, involving three general steps: a piecewise polynomial reconstruction followed by the solution of Riemann problems at zone interfaces and a final evolution stage. We have checked and validated the code against several benchmarks available in literature. Test problems in 1, 2 and 3 dimensions are discussed.

  1. Lattice Boltzmann Model for Numerical Relativity

    E-Print Network [OSTI]

    Ilseven, E

    2015-01-01T23:59:59.000Z

    In the Bona-Masso formulation, Einstein equations are written as a set of flux conservative first order hyperbolic equations that resemble fluid dynamics equations. Based on this formulation, we construct a lattice Boltzmann model for Numerical Relativity. Our model is validated with well-established tests, showing good agreement with analytical solutions. Furthermore, we show that by increasing the relaxation time, we gain stability at the cost of losing accuracy, and by decreasing the lattice spacings while keeping a constant numerical diffusivity, the accuracy and stability of our simulations improves. Finally, in order to show the potential of our approach a linear scaling law for parallelisation with respect to number of CPU cores is demonstrated. Our model represents the first step in using lattice kinetic theory to solve gravitational problems.

  2. Exploring New Physics Frontiers Through Numerical Relativity

    E-Print Network [OSTI]

    Vitor Cardoso; Leonardo Gualtieri; Carlos Herdeiro; Ulrich Sperhake

    2014-09-02T23:59:59.000Z

    The demand to obtain answers to highly complex problems within strong-field gravity has been met with significant progress in the numerical solution of Einstein's equations - along with some spectacular results - in various setups. We review techniques for solving Einstein's equations in generic spacetimes, focusing on fully nonlinear evolutions but also on how to benchmark those results with perturbative approaches. The results address problems in high-energy physics, holography, mathematical physics, fundamental physics, astrophysics and cosmology.

  3. Exploring New Physics Frontiers Through Numerical Relativity

    E-Print Network [OSTI]

    Cardoso, Vitor; Herdeiro, Carlos; Sperhake, Ulrich

    2014-01-01T23:59:59.000Z

    The demand to obtain answers to highly complex problems within strong-field gravity has been met with significant progress in the numerical solution of Einstein's equations -- along with some spectacular results -- in various setups. We review techniques for solving Einstein's equations in generic spacetimes, focusing on fully nonlinear evolutions but also on how to benchmark those results with perturbative approaches. The results address problems in high-energy physics, holography, mathematical physics, fundamental physics, astrophysics and cosmology.

  4. The numerical evaluation of many dimensional integrals 

    E-Print Network [OSTI]

    Rhodes, Duane Lewis

    1967-01-01T23:59:59.000Z

    assistance, and to the members of my committee, Drs. H. A. Luther and R, R. Hocking. TABLE OF CONTENTS Chapter Page I. INTRODUCTION Il. EXISTING METHODS OF NUMERICAL INTEGRATION . 3 Classical Methods Mo nte Carlo Methods . III. AN ERROR ANALYSIS . 10... Derivation of a Criterion. Error Approximation Using the Classical Method . . Error Estimate Using the Crude Monte Carlo Method 10 12 16 IV, EXPERIMENTS WITH CRUDE MONTE CARLO AND THE CLASSICAL METHOD. 18 A Method for Finding Exact Solutions...

  5. Issues in Numerical Simulation of Fire Suppression

    SciTech Connect (OSTI)

    Tieszen, S.R.; Lopez, A.R.

    1999-04-12T23:59:59.000Z

    This paper outlines general physical and computational issues associated with performing numerical simulation of fire suppression. Fire suppression encompasses a broad range of chemistry and physics over a large range of time and length scales. The authors discuss the dominant physical/chemical processes important to fire suppression that must be captured by a fire suppression model to be of engineering usefulness. First-principles solutions are not possible due to computational limitations, even with the new generation of tera-flop computers. A basic strategy combining computational fluid dynamics (CFD) simulation techniques with sub-grid model approximations for processes that have length scales unresolvable by gridding is presented.

  6. Numerical Simulations Unravel the Cosmic Web

    E-Print Network [OSTI]

    C. -A. Faucher-Giguere; A. Lidz; L. Hernquist

    2008-03-03T23:59:59.000Z

    The universe is permeated by a network of filaments, sheets, and knots collectively forming a "cosmic web.'' The discovery of the cosmic web, especially through its signature of absorption of light from distant sources by neutral hydrogen in the intergalactic medium, exemplifies the interplay between theory and experiment that drives science, and is one of the great examples in which numerical simulations have played a key and decisive role. We recount the milestones in our understanding of cosmic structure, summarize its impact on astronomy, cosmology, and physics, and look ahead by outlining the challenges faced as we prepare to probe the cosmic web at new wavelengths.

  7. Numerical modeling of vertical cavity semiconductor lasers

    SciTech Connect (OSTI)

    Chow, W.W.; Hadley, G.R.

    1996-08-01T23:59:59.000Z

    A vertical cavity surface emitting laser (VCSEL) is a diode laser whose optical cavity is formed by growing or depositing DBR mirror stacks that sandwich an active gain region. The resulting short cavity supports lasing into a single longitudinal mode normal to the wafer, making these devices ideal for a multitude of applications, ranging from high-speed communication to high-power sources (from 2D arrays). This report describes the development of a numerical VCSEL model, whose goal is to both further their understanding of these complex devices and provide a tool for accurate design and data analysis.

  8. Template:IsNumeric | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolar Jump to:HoldingsTechintIsNumeric Jump to: navigation, search This is

  9. NEW NUMERICAL TECHNOLOGIES FOR THE SIMULATION OF ARC WELDING PROCESSES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    NEW NUMERICAL TECHNOLOGIES FOR THE SIMULATION OF ARC WELDING PROCESSES Michel Bellet 1 , Makhlouf Antipolis, France; soudage@transvalor.com Keywords: welding, finite elements, material deposit, adaptive for arc welding simulation and analysis. The new numerical technologies essentially consist first

  10. Numerical simulation of micro-fluidic passive and active mixers

    E-Print Network [OSTI]

    Kumar, Saurabh

    2002-01-01T23:59:59.000Z

    Numerical simulations of mixing using passive and active techniques are performed. For passive mixing, numerical modeling of a micro-fluidic device, build by Holden and Cremer, was performed. The micro-fluidic device consists of a Y...

  11. Numerical uncertainty in computational engineering and physics

    SciTech Connect (OSTI)

    Hemez, Francois M [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Obtaining a solution that approximates ordinary or partial differential equations on a computational mesh or grid does not necessarily mean that the solution is accurate or even 'correct'. Unfortunately assessing the quality of discrete solutions by questioning the role played by spatial and temporal discretizations generally comes as a distant third to test-analysis comparison and model calibration. This publication is contributed to raise awareness of the fact that discrete solutions introduce numerical uncertainty. This uncertainty may, in some cases, overwhelm in complexity and magnitude other sources of uncertainty that include experimental variability, parametric uncertainty and modeling assumptions. The concepts of consistency, convergence and truncation error are overviewed to explain the articulation between the exact solution of continuous equations, the solution of modified equations and discrete solutions computed by a code. The current state-of-the-practice of code and solution verification activities is discussed. An example in the discipline of hydro-dynamics illustrates the significant effect that meshing can have on the quality of code predictions. A simple method is proposed to derive bounds of solution uncertainty in cases where the exact solution of the continuous equations, or its modified equations, is unknown. It is argued that numerical uncertainty originating from mesh discretization should always be quantified and accounted for in the overall uncertainty 'budget' that supports decision-making for applications in computational physics and engineering.

  12. GRChombo : Numerical Relativity with Adaptive Mesh Refinement

    E-Print Network [OSTI]

    Katy Clough; Pau Figueras; Hal Finkel; Markus Kunesch; Eugene A. Lim; Saran Tunyasuvunakool

    2015-03-11T23:59:59.000Z

    Numerical relativity has undergone a revolution in the past decade. With a well-understood mathematical formalism, and full control over the gauge modes, it is now entering an era in which the science can be properly explored. In this work, we introduce GRChombo, a new numerical relativity code written to take full advantage of modern parallel computing techniques. GRChombo's features include full adaptive mesh refinement with block structured Berger-Rigoutsos grid generation which supports non-trivial "many-boxes-in-many-boxes" meshing hierarchies, and massive parallelism through the Message Passing Interface (MPI). GRChombo evolves the Einstein equation with the standard BSSN formalism, with an option to turn on CCZ4 constraint damping if required. We show that GRChombo passes all the standard "Apples-to-Apples" code comparison tests. We also show that it can stably and accurately evolve vacuum black hole spacetimes such as binary black hole mergers, and non-vacuum spacetimes such as scalar collapses into black holes. As an illustration of its AMR capability, we demonstrate the evolution of triple black hole merger, which can be set up trivially in GRChombo.

  13. GRChombo : Numerical Relativity with Adaptive Mesh Refinement

    E-Print Network [OSTI]

    Clough, Katy; Finkel, Hal; Kunesch, Markus; Lim, Eugene A; Tunyasuvunakool, Saran

    2015-01-01T23:59:59.000Z

    Numerical relativity has undergone a revolution in the past decade. With a well-understood mathematical formalism, and full control over the gauge modes, it is now entering an era in which the science can be properly explored. In this work, we introduce GRChombo, a new numerical relativity code written to take full advantage of modern parallel computing techniques. GRChombo's features include full adaptive mesh refinement with block structured Berger-Rigoutsos grid generation which supports non-trivial "many-boxes-in-many-boxes" meshing hierarchies, and massive parallelism through the Message Passing Interface (MPI). GRChombo evolves the Einstein equation with the standard BSSN formalism, with an option to turn on CCZ4 constraint damping if required. We show that GRChombo passes all the standard "Apples-to-Apples" code comparison tests. We also show that it can stably and accurately evolve vacuum black hole spacetimes such as binary black hole mergers, and non-vacuum spacetimes such as scalar collapses into b...

  14. Numerical Results for the Blue Phases

    E-Print Network [OSTI]

    G. P. Alexander; J. M. Yeomans

    2009-06-04T23:59:59.000Z

    We review recent numerical work investigating the equilibrium phase diagram, and the dynamics, of the cholesteric blue phases. In equilibrium numerical results confirm the predictions of the classic analytical theories, and extend them to incorporate different values of the elastic constants, or the effects of an applied electric field. There is a striking increase in the stability of blue phase I in systems where the cholesteric undergoes helical sense inversion, and the anomalous electrostriction observed in this phase is reproduced. Solving the equations of motion allows us to present results for the phase transition kinetics of blue phase I under dielectric or flexoelectric coupling to an applied electric field. We also present simulations of the blue phases in a flow field, showing how the disclination network acts to oppose the flow. The results are based on the Landau-de Gennes exapnsion of the liquid crystal free energy: that such a simple and elegant theory can predict such complex and subtle physical behaviour is remarkable.

  15. RELAP-7 Numerical Stabilization: Entropy Viscosity Method

    SciTech Connect (OSTI)

    R. A. Berry; M. O. Delchini; J. Ragusa

    2014-06-01T23:59:59.000Z

    The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at the Idaho National Laboratory (INL). The code is based on the INL's modern scientific software development framework, MOOSE (Multi-Physics Object Oriented Simulation Environment). The overall design goal of RELAP-7 is to take advantage of the previous thirty years of advancements in computer architecture, software design, numerical integration methods, and physical models. The end result will be a reactor systems analysis capability that retains and improves upon RELAP5's capability and extends the analysis capability for all reactor system simulation scenarios. RELAP-7 utilizes a single phase and a novel seven-equation two-phase flow models as described in the RELAP-7 Theory Manual (INL/EXT-14-31366). The basic equation systems are hyperbolic, which generally require some type of stabilization (or artificial viscosity) to capture nonlinear discontinuities and to suppress advection-caused oscillations. This report documents one of the available options for this stabilization in RELAP-7 -- a new and novel approach known as the entropy viscosity method. Because the code is an ongoing development effort in which the physical sub models, numerics, and coding are evolving, so too must the specific details of the entropy viscosity stabilization method. Here the fundamentals of the method in their current state are presented.

  16. Symbolic Numeric Index Analysis Algorithm for Differential Algebraic Equations

    E-Print Network [OSTI]

    Linninger, Andreas A.

    . For the numerical solution of BVPs, global methods such as orthogonal collocation,1 finite elements,2 or spectral

  17. Numerical simulations for nodal domains and spectral minimal partitions

    E-Print Network [OSTI]

    Vial, Grégory

    unpublished results of [HHO2] with efficient numerical computations. This is the main goal of this paper

  18. Upcoming Numerical Linear Algebra Issues in Systems and Control Theory

    E-Print Network [OSTI]

    Upcoming Numerical Linear Algebra Issues in Systems and Control Theory Paul Van Dooren University in the interdisciplinary area of numerical linear algebra and systems and control theory. Although we do not claimto, and normalized coprime factorizations in robust control. Key words. Numerical algorithms, linear algebra, sparse

  19. Upcoming Numerical Linear Algebra Issues in Systems and Control Theory

    E-Print Network [OSTI]

    Upcoming Numerical Linear Algebra Issues in Systems and Control Theory Paul Van Dooren University in the interdisciplinary area of numerical linear algebra and systems and control theory. Although we do not claim, and normalized coprime factorizations in robust control. Key words. Numerical algorithms, linear algebra, sparse

  20. Heft 87 Olaf Cirpka CONTRACT: A Numerical Tool

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    Heft 87 Olaf Cirpka CONTRACT: A Numerical Tool for Contaminant Transport and Chemical Transformations #12;Heft 87 CONTRACT: A Numerical Tool for Contaminant Transport and Chemical Transformations der Universität Stuttgart #12;CONTRACT: A Numerical Tool for Contaminant Transport and Chemical

  1. On the Numerical Simulation of Waterflooding of Heterogeneous

    E-Print Network [OSTI]

    Douglas Jr., Jim

    On the Numerical Simulation of Waterflooding of Heterogeneous Petroleum Reservoirs Jim Douglas, Jr displacement in petroleum reservoirs. A very detailed description of the numerical method is presented. Follow, 22290 Rio de Janeiro, RJ, Brazil #12; On the Numerical Simulation of Waterflooding of Heterogeneous

  2. Numerical Simulation of Unsteady Three-Dimensional Sheet Cavitation

    E-Print Network [OSTI]

    Twente, Universiteit

    Numerical Simulation of Unsteady Three-Dimensional Sheet Cavitation A.H. Koop #12;Numerical Simulation of Unsteady Three-Dimensional Sheet Cavitation A.H. Koop Thesis University of Twente, Enschede, the Netherlands #12;NUMERICAL SIMULATION OF UNSTEADY THREE-DIMENSIONAL SHEET CAVITATION PROEFSCHRIFT ter

  3. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal. Meth. Geomech. 2011; 00:116

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal Methods in Geomechanics (2012) 19 pages" DOI : 10.1002/nag.1138 #12;2 B. NEDJAR AND R. LE ROY asymptotic

  4. H.R. 817: A Bill to authorize the Secretary of Energy to lease lands within the naval oil shale reserves to private entities for the development and production of oil and natural gas. Introduced in the House of Representatives, One Hundred Fourth Congress, First session

    SciTech Connect (OSTI)

    NONE

    1995-12-31T23:59:59.000Z

    This bill would give the Secretary of Energy authority to lease lands within the Naval oil shale reserves to private entities for the purpose of surveying for and developing oil and gas resources from the land (other than oil shale). It also allows the Bureau of Land Management to be used as a leasing agent, establishes rules on royalties, and the sharing of royalties with the state, and covers the transfer of existing equipment.

  5. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS Int. J. Numer. Meth. Fluids 2013; 71:175184

    E-Print Network [OSTI]

    Navon, Michael

    laser heat deposition on the flow field near shock crossing. The influence of energy impulse was imi.1002/fld.3652 Numerical control of two-dimensional shock waves in dual solution domain by instant reflections in the dual solution domain is addressed in an optimization statement. The gradient

  6. A numerical approximation to distribution function

    E-Print Network [OSTI]

    Tuttle, Keith Allan

    1977-01-01T23:59:59.000Z

    then is to approximate F(Y) numerically. We sub- divide the unit cube Q into N cubes eqch of length h I/N on a n n side. Within each individual subcube Q , we will define an affine approximation to f, W = g(x , . . . , x ), which requires the gradient of 1' ' 'n our... & h/2, k k i + 1/2 2 n k k = 1, 2, . . . , n]. Let f(x) f C [Q ] the space of twice continuously n differentiable functions on Q , and define the auxiliary function g(x) as the tangent to f at x. i + 1 2 for x f Q. . That is, if x I Q i (x) f (x1 2...

  7. NUMERICAL MODELING OF CATHODE CONTACT MATERIAL DENSIFICATION

    SciTech Connect (OSTI)

    Koeppel, Brian J.; Liu, Wenning N.; Stephens, Elizabeth V.; Khaleel, Mohammad A.

    2011-11-01T23:59:59.000Z

    Numerical modeling was used to simulate the constrained sintering process of the cathode contact layer during assembly of solid oxide fuel cells (SOFCs). A finite element model based on the continuum theory for sintering of porous bodies was developed and used to investigate candidate low-temperature cathode contact materials. Constitutive parameters for various contact materials under investigation were estimated from dilatometry screening tests, and the influence of processing time, processing temperature, initial grain size, and applied compressive stress on the free sintering response was predicted for selected candidate materials. The densification behavior and generated stresses within a 5-cell planar SOFC stack during sintering, high temperature operation, and room temperature shutdown were predicted. Insufficient constrained densification was observed in the stack at the proposed heat treatment, but beneficial effects of reduced grain size, compressive stack preload, and reduced thermal expansion coefficient on the contact layer densification and stresses were observed.

  8. Dynamics of Dry Friction: A Numerical Investigation

    E-Print Network [OSTI]

    Y. F. Lim; Kan Chen

    1998-03-18T23:59:59.000Z

    We perform extended numerical simulation of the dynamics of dry friction, based on a model derived from the phenomenological description proposed by T. Baumberger et al.. In the case of small deviation from the steady sliding motion, the model is shown to be equivalent to the state- and rate-dependent friction law which was first introduced by Rice and Ruina on the basis of experiments on rocks. We obtain the dynamical phase diagram that agrees well with the experimental results on the paper-on-paper systems. In particular, the bifurcation between stick-slip and steady sliding are shown to change from a direct (supercritical) Hopf type to an inverted (subcritical) one as the driving velocity increases, in agreement with the experiments.

  9. Very high numerical aperture light transmitting device

    DOE Patents [OSTI]

    Allison, Stephen W. (Knoxville, TN); Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Knoxville, TN)

    1998-01-01T23:59:59.000Z

    A new light-transmitting device using a SCIN glass core and a novel calcium sodium cladding has been developed. The very high index of refraction, radiation hardness, similar solubility for rare earths and similar melt and viscosity characteristics of core and cladding materials makes them attractive for several applications such as high-numerical-aperture optical fibers and specialty lenses. Optical fibers up to 60 m in length have been drawn, and several simple lenses have been designed, ground, and polished. Preliminary results on the ability to directly cast optical components of lead-indium phosphate glass are also discussed as well as the suitability of these glasses as a host medium for rare-earth ion lasers and amplifiers.

  10. Direct numerical simulation of turbulent reacting flows

    SciTech Connect (OSTI)

    Chen, J.H. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01T23:59:59.000Z

    The development of turbulent combustion models that reflect some of the most important characteristics of turbulent reacting flows requires knowledge about the behavior of key quantities in well defined combustion regimes. In turbulent flames, the coupling between the turbulence and the chemistry is so strong in certain regimes that is is very difficult to isolate the role played by one individual phenomenon. Direct numerical simulation (DNS) is an extremely useful tool to study in detail the turbulence-chemistry interactions in certain well defined regimes. Globally, non-premixed flames are controlled by two limiting cases: the fast chemistry limit, where the turbulent fluctuations. In between these two limits, finite-rate chemical effects are important and the turbulence interacts strongly with the chemical processes. This regime is important because industrial burners operate in regimes in which, locally the flame undergoes extinction, or is at least in some nonequilibrium condition. Furthermore, these nonequilibrium conditions strongly influence the production of pollutants. To quantify the finite-rate chemistry effect, direct numerical simulations are performed to study the interaction between an initially laminar non-premixed flame and a three-dimensional field of homogeneous isotropic decaying turbulence. Emphasis is placed on the dynamics of extinction and on transient effects on the fine scale mixing process. Differential molecular diffusion among species is also examined with this approach, both for nonreacting and reacting situations. To address the problem of large-scale mixing and to examine the effects of mean shear, efforts are underway to perform large eddy simulations of round three-dimensional jets.

  11. Habitat reclamation plan to mitigate for the loss of habitat due to oil and gas production activities under maximum efficient rate, Naval Petroleum Reserve No. 1, Kern County, California

    SciTech Connect (OSTI)

    Anderson, D.C.

    1994-11-01T23:59:59.000Z

    Activities associated with oil and gas development under the Maximum Efficiency Rate (MER) from 1975 to 2025 will disturb approximately 3,354 acres. Based on 1976 aerial photographs and using a dot grid methodology, the amount of land disturbed prior to MER is estimated to be 3,603 acres. Disturbances on Naval Petroleum Reserve No. 1 (NPR-1) were mapped using 1988 aerial photography and a geographical information system. A total of 6,079 acres were classified as disturbed as of June, 1988. The overall objective of this document is to provide specific information relating to the on-site habitat restoration program at NPRC. The specific objectives, which relate to the terms and conditions that must be met by DOE as a means of protecting the San Joaquin kit fox from incidental take are to: (1) determine the amount and location of disturbed lands on NPR-1 and the number of acres disturbed as a result of MER activities, (2) develop a long term (10 year) program to restore an equivalent on-site acres to that lost from prior project-related actions, and (3) examine alternative means to offset kit fox habitat loss.

  12. Biological assessment of the effects of petroleum production at maximum efficient rate, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California, on the endangered blunt-nosed leopard lizard, Gambelia silus

    SciTech Connect (OSTI)

    Kato, T.T.; O'Farrell, T.P.

    1986-06-01T23:59:59.000Z

    Surveys to determine the distribution and relative abundance of blunt-nosed leopard lizards on Naval Petroleum Reserve-1 were conducted in 1980 and 1981. In 1982 radiotelemetry and pitfall trapping techniques were used to gain additional information on the species and develop alternative methods of study. Incidental observations of blunt-nosed leopard lizards were recorded and used in the distribution information for NPR-1. DOE determined during this biological assessment that the construction projects and operational activities necessary to achieve and sustain MER have not adversely affected the blunt-nosed leopard lizard and its habitat, because only approximately 6% of the potential blunt-nosed leopard lizard habitat on NPR-1 was disturbed by construction and operational activities. DOE believes that the direct, indirect, and cumulative effects of MER will not jeopardize the continued existence of the species, because results of surveys indicated that blunt-nosed leopard lizards are mainly distributed near the periphery of Elk Hills where few petroleum developments occurred in the past and where they are unlikely to occur in the future. A policy of conducting preconstruction surveys to protect blunt-nosed leopard lizard habitat was initiated, a habitat restoration plan was developed and implemented, and administrative policies to reduce vehicle speeds, contain oil spills, restrict off-road vehicle (ORV) travel, and to prohibit public access, livestock grazing, and agricultural activities were maintained.

  13. Force budget: I. Theory and numerical methods

    E-Print Network [OSTI]

    van der Veen, Cornelis J.; Whillans, I. M.

    1989-10-05T23:59:59.000Z

    ,y) and vertical (z). Balance of forces is expressed by: 8 h- J Rxxdz8x b ~ 8 h ~ Rxx(h)- + - J Rxydz - Rxy(h)-8 +8x 8y yb (11 ) 8C1XX 8C1xy 8C1xz + + 0 (1)8x 8y 8z 8C1xy 8C1yy 8C1yz 0 (2)+ +8x 8y 8z 8 h 8x J Rxydz b (12) 8C1XZ 8C1yz 8C1ZZ + + ---- - pg = 0 (3)8x 8... are small compared to pg. This is satisfied if 8Rxz/ax = aC1xz/aX * 0 and 8Ryz/ay = aC1yz/ay * O.When the balance equations are solved numerically, this approximation is not necessary, and the value of Rzz can be obtained from Equation (3) for vertical force...

  14. Direct numerical simulations of convective heat transfer

    SciTech Connect (OSTI)

    Pointel, G.; Acharya, S.; Sharma, C. [Louisiana State Univ., Baton Rouge, LA (United States). Mechanical Engineering Dept.

    1996-11-01T23:59:59.000Z

    This paper deals with the development of a direct numerical simulation (DNS) code for solving the incompressible Navier-Stokes equation using higher order finite difference schemes. The time dependent Navier Stokes equation has been discretized using semi-implicit second order time splitting scheme, which requires the solution of pressure Poisson equation. For this purpose a Galerkin Fourier transform in the spanwise direction and a matrix diagonalization technique is used. The convection terms are formulated in non-conservative form on a collocated grid. A fifth order upwind biased scheme is used for this purpose. Diffusion terms are differenced using a sixth order central difference scheme. The algorithm is implemented on the MasPar MP-1, a Single Instruction Multiple Data computer where efficient data parallelization is used to get DNS results. The code has been used to get results for smooth channel flow at Re{sub {tau}} = 180. Results are now being obtained for the energy equation and for flow in a periodic ribbed channel.

  15. A numerical model of aerosol scavenging

    SciTech Connect (OSTI)

    Bradley, M.M.; Molenkamp, C.R.

    1991-10-01T23:59:59.000Z

    Using a three-dimensional numerical cloud/smoke-plume model, we have simulated the burning of a large, mid-latitude city following a nuclear exchange. The model includes 18 dynamic and microphysical equations that predict the fire-driven airflow, cloud processes, and smoke-cloud interactions. In the simulation, the intense heating from the burning city produces a firestorm with updraft velocities exceeding 60 m/s. Within 15 minutes of ignition, the smoke plume penetrates the tropopause. The updraft triggers a cumulonimbus cloud that produces significant quantities of ice, snow, and hail. These solid hydrometeors, as well as cloud droplets and rain, interact with the smoke particles from the fire. At the end of the one-hour simulation, over 20% of the smoke is in slowly falling snowflakes. If the snow reaches the ground before the flakes completely sublimate (or melt and then evaporate), then only approximately 50% of the smoke will survive the scavenging processes and remain in the atmosphere to affect the global climate.

  16. Collisionless microinstabilities in stellarators. II. Numerical simulations

    SciTech Connect (OSTI)

    Proll, J. H. E.; Xanthopoulos, P.; Helander, P. [Max-Planck-Institut für Plasmaphysik, EURATOM Association, Teilinstitut Greifswald, Wendelsteinstraße 1, 17491 Greifswald, Germany and Max-Planck/Princeton Research Center for Plasma Physics, 17491 Greifswald (Germany)] [Max-Planck-Institut für Plasmaphysik, EURATOM Association, Teilinstitut Greifswald, Wendelsteinstraße 1, 17491 Greifswald, Germany and Max-Planck/Princeton Research Center for Plasma Physics, 17491 Greifswald (Germany)

    2013-12-15T23:59:59.000Z

    Microinstabilities exhibit a rich variety of behavior in stellarators due to the many degrees of freedom in the magnetic geometry. It has recently been found that certain stellarators (quasi-isodynamic ones with maximum-J geometry) are partly resilient to trapped-particle instabilities, because fast-bouncing particles tend to extract energy from these modes near marginal stability. In reality, stellarators are never perfectly quasi-isodynamic, and the question thus arises whether they still benefit from enhanced stability. Here, the stability properties of Wendelstein 7-X and a more quasi-isodynamic configuration, QIPC, are investigated numerically and compared with the National Compact Stellarator Experiment and the DIII-D tokamak. In gyrokinetic simulations, performed with the gyrokinetic code GENE in the electrostatic and collisionless approximation, ion-temperature-gradient modes, trapped-electron modes, and mixed-type instabilities are studied. Wendelstein 7-X and QIPC exhibit significantly reduced growth rates for all simulations that include kinetic electrons, and the latter are indeed found to be stabilizing in the energy budget. These results suggest that imperfectly optimized stellarators can retain most of the stabilizing properties predicted for perfect maximum-J configurations.

  17. Status of NINJA: the Numerical INJection Analysis project

    E-Print Network [OSTI]

    Benjamin Aylott; John G. Baker; William D. Boggs; Michael Boyle; Patrick R. Brady; Duncan A. Brown; Bernd Brügmann; Luisa T. Buchman; Alessandra Buonanno; Laura Cadonati; Jordan Camp; Manuela Campanelli; Joan Centrella; Shourov Chatterjis; Nelson Christensen; Tony Chu; Peter Diener; Nils Dorband; Zachariah B. Etienne; Joshua Faber; Stephen Fairhurst; Benjamin Farr; Sebastian Fischetti; Gianluca Guidi; Lisa M. Goggin; Mark Hannam; Frank Herrmann; Ian Hinder; Sascha Husa; Vicky Kalogera; Drew Keppel; Lawrence E. Kidder; Bernard J. Kelly; Badri Krishnan; Pablo Laguna; Carlos O. Lousto; Ilya Mandel; Pedro Marronetti; Richard Matzner; Sean T. McWilliams; Keith D. Matthews; R. Adam Mercer; Satyanarayan R. P. Mohapatra; Abdul H. Mroué; Hiroyuki Nakano; Evan Ochsner; Yi Pan; Larne Pekowsky; Harald P. Pfeiffer; Denis Pollney; Frans Pretorius; Vivien Raymond; Christian Reisswig; Luciano Rezzolla; Oliver Rinne; Craig Robinson; Christian Röver; Lucía Santamaría; Bangalore Sathyaprakash; Mark A. Scheel; Erik Schnetter; Jennifer Seiler; Stuart L. Shapiro; Deirdre Shoemaker; Ulrich Sperhake; Alexander Stroeer; Riccardo Sturani; Wolfgang Tichy; Yuk Tung Liu; Marc van der Sluys; James R. van Meter; Ruslan Vaulin; Alberto Vecchio; John Veitch; Andrea Viceré; John T. Whelan; Yosef Zlochower

    2009-05-26T23:59:59.000Z

    The 2008 NRDA conference introduced the Numerical INJection Analysis project (NINJA), a new collaborative effort between the numerical relativity community and the data analysis community. NINJA focuses on modeling and searching for gravitational wave signatures from the coalescence of binary system of compact objects. We review the scope of this collaboration and the components of the first NINJA project, where numerical relativity groups shared waveforms and data analysis teams applied various techniques to detect them when embedded in colored Gaussian noise.

  18. Numerical simulation of three-dimensional electrical flow through geomaterials 

    E-Print Network [OSTI]

    Akhtar, Anwar Saeed

    1998-01-01T23:59:59.000Z

    95 99 V ELECTRICAL FLOW AROUND AN ELECTRICAL CONE PENETROMETER 104 5. 1 INTRODUCTION 5. 2 ANALYTICAL SOLUTION FOR ELECTRICAL FLOW AROUND AN ELECTRICAL CONE PENETROMETER 5. 3 NUMERICAL INVESTIGATION 5. 4 COMPARISON OF ANALYTICAL AND NUMERICAL... RESULTS 5. 5 CONCLUSION AND APPLICATION 5. 5. 1 Utilization of Numerical Results 104 106 110 113 115 116 VI EXPERIMENTAL EQUIPMENT DESIGN 121 6. 1 INTRODUCTION 6. 2 ELECTRICAL POWER SOURCE 6. 3 ELECTRICAL RESISTIVITY CONE PENETROMETER 6. 4...

  19. Efficient numerical methods for computing ground states and ...

    E-Print Network [OSTI]

    2010-08-06T23:59:59.000Z

    Jul 8, 2010 ... New efficient and accurate numerical methods are proposed to ... ating integrals with high singularity and thus they are more efficient and ...

  20. A Numerical Evaluation Of Electromagnetic Methods In Geothermal...

    Open Energy Info (EERE)

    Published Journal International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1996 DOI 10.1016S0148-9062(97)87449-9 Citation . 1996. A Numerical...

  1. Numerical Methods for Transport{Dominated Flows in ...

    E-Print Network [OSTI]

    Numerical Methods for Transport{Dominated Flows in. Heterogeneous Porous Media. Jim Douglas, Jr. Frederico Furtado y. Felipe Pereira z. Li-Ming Yeh x.

  2. Numerical Modeling At Dixie Valley Geothermal Area (McKenna ...

    Open Energy Info (EERE)

    McKenna & Blackwell, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Numerical Modeling At Dixie Valley Geothermal Area (McKenna &...

  3. adaptive numerical methods: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: An adaptive numerical method for the Richards equation with root growth Olga Wilderotter and plant root growth is presented. It allows the calculation of the...

  4. Energy stable schemes and numerical simulations of two phase ...

    E-Print Network [OSTI]

    Title: Energy stable schemes and numerical simulations of two phase complex fluids by the phase-field method Abstact: We present an energetic variational ...

  5. An Integrated Experimental and Numerical Study: Developing a...

    Open Energy Info (EERE)

    and natural geothermal systems. The simulator can also be used to evaluate long-term CO2 sequestration potentials. State Minnesota Objectives Modify a numerical simulator (TOUGH2)...

  6. Numerical study of reaction in porous catalysts under composition modulation

    E-Print Network [OSTI]

    Hsiao, Hsu-Wen

    2010-01-01T23:59:59.000Z

    Numerical methods for chemical engineering: applications incycling of the feed." Chemical Engineering Science 54(20): [computer." Computers & Chemical Engineering 26(3): 439-

  7. Numerical Data Advisory Board assembly of mathematial and physical sciences

    SciTech Connect (OSTI)

    Not Available

    1980-07-30T23:59:59.000Z

    The Numerical Data Advisory Board (NDAB) is an advisory body that provides expert overview, on a broad basis, of data needs and data programs as required for the advancement of science and technology. Board members, representing various disciplines, concern themselves with the quality, reliability, availability, accessibility, and dissemination of numerical data in physical, chemical, engineering, and interdisciplinary subjects as well as numeric and non-numeric data that arise in biology and geology. Topics of concern are addressed by the NDAB membership, or by specific, carefully chosen committees and panels established by NDAB in order to include experts appropriate to the subject at hand.

  8. adaptive numerical dissipative: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    linear function while the frictional dissipation rate is a cubic power of surface wind speed, the dissipation rate is generally smaller Wang, Yuqing 7 An Adaptive Numerical...

  9. Numerical Modeling of the Nucleation Conditions of Petal-Centerline...

    Open Energy Info (EERE)

    Coso Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Numerical Modeling of the Nucleation Conditions of...

  10. Optimization Online - On mutual impact of numerical linear algebra ...

    E-Print Network [OSTI]

    Marco D'Apuzzo

    2008-03-12T23:59:59.000Z

    Mar 12, 2008 ... On mutual impact of numerical linear algebra and large-scale optimization with focus on interior point methods.

  11. The Numerical Approximation of Solutions of ... - Purdue University

    E-Print Network [OSTI]

    2009-05-05T23:59:59.000Z

    numerical simulation of waterflooding of heterogeneous petroleum reservoirs. Computational Geosciences, 1 (1997). 155–190. J. Douglas, Jr., C.-S. Huang, and ...

  12. Preliminary LSG Numerical Reliability DATt 5 January 1971

    E-Print Network [OSTI]

    Rathbun, Julie A.

    of the component application analysis and the FMEA. I . f.: I #12;· .... ATM-937 HY.MO. Preliminary l.SG Numerical

  13. Biological assessment of the effects of petroleum production at maximum efficient rate, Naval Petroleum Reserve No. 1 (Elk Hills), Kern County, California, on the endangered San Joaquin kit fox, Vulpes macrotis mutica

    SciTech Connect (OSTI)

    O'Farrell, T.P.; Harris, C.E.; Kato, T.T.; McCue, P.M.

    1986-06-01T23:59:59.000Z

    Between 1980 and 1986 DOE sponsored field studies to gather sufficient information to determine the status of the species on Naval Petroleum Reserve-1 and to evaluate the possible effects of MER. Transect surveys were conducted in 1979 and 1984 to document the distribution and relative density of fox dens. Radiotelemetry studies were initiated to provide information on reproductive success, den use patterns, responses to petroleum field activities, food habits, movement patterns and home ranges, and sources and rates of mortality. Techniques for conducting preconstruction surveys to minimize possible negative effects of MER activities on foxes plus a habitat restoration program were developed and implemented. DOE determined during this biological assessment that the construction projects and operational activities necessary to achieve and sustain MER may have adversely affected the San Joaquin kit fox and its habitat. However, the direct, indirect, and cumulative effects of MER will not jeopardize the continued existence of the species because: (1) results of the extensive field studies did not provide evidence that MER effected negative changes in relative abundance, reproductive success, and dispersal of the species; (2) a successful policy of conducting preconstruction surveys to protect kit fox, their dens, and portions of their habitat was initiated; (3) the Secretary of the Interior did not designate critical habitat; (4) a habitat restoration plan was developed and implemented; (5) a monitoring program was implemented to periodically assess the status of kit fox; (6) a coyote control program was established with FWS to reduce predation on fox; and (7) administrative policies to reduce vehicle speeds, contain oil spills, restrict off-road vehicle (ORV) travel, and to prohibit hunting, trapping, livestock grazing, and agricultural activities, were maintained to protect kit fox.

  14. Biological assessment: possible impacts of exploratory drilling in sections 8B and 18H, Naval Petroleum Reserve No. 2, Kern County, California on the endangered San Joaquin kit fox, blunt-nosed leopard lizard, and other sensitive species

    SciTech Connect (OSTI)

    O'Farrell, T.P.; Sauls, M.L.

    1982-07-01T23:59:59.000Z

    The U.S. Department of Energy proposes to drill exploratory wells on two sections, 8B and 18H, within Naval Petroleum Reserve No. 2 in western Kern County, California. The proposed sites are thought to provide habitat for the endangered San Joaquin kit fox and blunt-nosed leopard lizard, as well as two sensitive species: the giant kangaroo rat and San Joaquin antelope ground squirrel. The objective was to assess the possible impacts of the exploratory drilling on these species and their essential habitats. Although 23 potential San Joaquin kit fox den sites were found during surveys of a total of 512 ha (1280 acres) surrounding both well sites, no burrows were closer than 30 m from proposed disturbance, and most were over 200 m away. Two blunt-nosed leopard lizards were observed on private land within 8B, one was observed on private land in 18H, and two were seen on DOE portions of 18H. No evidence of blunt-nosed leopard lizards was gathered in the immediate vicinity of either proposed well site. Although 5 ha of habitat will be disturbed, there is no evidence to indicate any of the species has burrows on-site that will be lost during land clearing. Loss of habitat will be mitigated during the cleanup and restoration phases when disturbed areas will be revegetated. Increased traffic, human activities, noise and ground vibration levels, as well as illumination throughout the night, may disturb the fauna. However, these species have adapted to intensive human disturbances on Elk Hills without obvious negative effects. The short duration of the project should allow any displaced animals to return to the sites after drilling ceases.

  15. Naval Petroleum Reserve No. 2: Buena Vista Oil and Gas Field, Kern County, California: Proved reserves, Developed and undeveloped, Sections 6 and 8: Development history and exploitation techniques, Effective July 1, 1987: (Final technical report)

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-09T23:59:59.000Z

    The research for the initial Naval Petroleum Reserve No. 2 (NPR-2), study Task Assignment 010, showed the possibility of undeveloped proved reserves in the Shallow Pool on Government leases. Task Assignment 010C included a study to confirm or disprove the possibility. The six-section area, which is highlighted on Exhibit M-2, was chosen as the area for specific study of this subject. The Shallow Oil Zone, as depicted on Exhibit S-1, was the focal point of the study in the area. Competitive development of Government land with adjacent privately held land is an issue which has often been raised regarding NPR-2; however, it has never been formally addressed. Task Assignment 010C commissioned a study of the subject in the same six-section area designated for the study of proved undeveloped reserves. The producing formations in the Buena Vista Field of NPR-2 are very similar to the producing formations in the Elk Hills Field of NPR-1 to the north. It is possible that some of the successful development techniques utilized in NPR-2 by the various operators might enhance production efficiency at NPR-1. Task Assignment 010C included a detailed task of researching techniques used in NPR-2 for possible application in NPR-1. Because the detailed tasks of Task Assignment 010C are divergent in scope, a composite summary of the study's research is not included in this report. Each task's research is detailed in a separate Discussion section. Exhibits for these discussions are contained in an Exhibit section at the end of this volume. The appendices include: task assignment; DOE letters to lessees; Evans, Carey and Crozier letters to lessees; reports and studies from lessees; core analysis data; production data; geologic picks of formation tops; and annotated well logs. 22 figs., 6 tabs.

  16. Practical Experience in the Numerical Dangers of Heterogeneous Computing

    E-Print Network [OSTI]

    Dongarra, Jack

    in writing reliable numerical library software for heterogeneous computing environments. Although a lot ways to avoid potential pitfalls, or if that is not possible, we recommend that the software;1. INTRODUCTION There are special challenges associated with writing reliable numerical software on networks

  17. A new shock-capturing numerical scheme for ideal hydrodynamics

    E-Print Network [OSTI]

    Zuzana Feckova; Boris Tomasik

    2015-01-07T23:59:59.000Z

    We present a new algorithm for solving ideal relativistic hydrodynamics based on Godunov method with an exact solution of Riemann problem for an arbitrary equation of state. Standard numerical tests are executed, such as the sound wave propagation and the shock tube problem. Low numerical viscosity and high precision are attained with proper discretization.

  18. A new shock-capturing numerical scheme for ideal hydrodynamics

    E-Print Network [OSTI]

    Feckova, Zuzana

    2015-01-01T23:59:59.000Z

    We present a new algorithm for solving ideal relativistic hydrodynamics based on Godunov method with an exact solution of Riemann problem for an arbitrary equation of state. Standard numerical tests are executed, such as the sound wave propagation and the shock tube problem. Low numerical viscosity and high precision are attained with proper discretization.

  19. Numerical Analysis of Nonlinear Multiharmonic Eddy Current Problems

    E-Print Network [OSTI]

    Schoeberl, Joachim

    Numerical Analysis of Nonlinear Multiharmonic Eddy Current Problems F. Bachinger U. Langer J. Sch¨oberl April 2004 Abstract This work provides a complete analysis of eddy current problems, rang- ing from at providing a complete analysis of general nonlinear eddy current problems and their numerical treatment

  20. Numerical integration and importance 2.1 Quadrature

    E-Print Network [OSTI]

    Schofield, Jeremy

    2 Numerical integration and importance sampling 2.1 Quadrature Consider the numerical evaluation of the integral I(a, b) = b a dx f(x) · Rectangle rule: on small interval, construct interpolating function and integrate over interval. ­ Polynomial of degree 0 using mid-point of interval: (a+1)h ah dx f(x) h f ((ah

  1. Buoyant melting instabilities beneath extending lithosphere: 1. Numerical models

    E-Print Network [OSTI]

    Tackley, Paul J.

    Buoyant melting instabilities beneath extending lithosphere: 1. Numerical models John W. Hernlund,1,2 Paul J. Tackley,1,3 and David J. Stevenson4 Received 18 November 2006; revised 18 October 2007 diffusely extending lithosphere is studied using numerical convection models covering a wide range

  2. A Numerical Investigation of Wettability Alteration during Immiscible CO2

    E-Print Network [OSTI]

    Hossain, M. Enamul

    A Numerical Investigation of Wettability Alteration during Immiscible CO2 Flooding Process, April 2012 #12;2 Table of Contest Abstract 3 Introduction 3 Literature Review 5 CO2 Flooding 7 New alteration during CO2 flooding. However, limited research on numerical and/or analytical modeling

  3. A Numerical quadrature for the Schwarz-Chimera Method

    E-Print Network [OSTI]

    A Numerical quadrature for the Schwarz-Chimera Method J. -B. Apoung Kamga1 and Olivier Pironneau2 1 Curie Olivier.Pironneau@upmc.fr Summary. Chimera [9] happens to be a version of Schwarz' method quadrature for the Schwarz-Chimera Method 3 3 Numerical Quadrature As such, the scheme is too costly

  4. Numerical simulation of transpiration cooling through porous , T. Gotzen1

    E-Print Network [OSTI]

    55, 52056 Aachen SUMMARY Transpiration cooling using ceramic matrix composite (CMC) materials to facilitate such numerical simulations for a carbon/carbon material mounted in the side wall of a hot gasNumerical simulation of transpiration cooling through porous material W. Dahmen1 , T. Gotzen1 and S

  5. Richard # 9501 EXPERIMENTAL AND NUMERICAL ANALYSIS OF CORROSION-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Richard # 9501 Page 1/9 EXPERIMENTAL AND NUMERICAL ANALYSIS OF CORROSION- INDUCED COVER CRACKING to present both experimental and numerical studies of the corrosion induced cracking pattern evolution of a reinforced concrete sample subjected to accelerated corrosion. The sample was a concrete beam (1000x250x100

  6. Evolution of the Bohemian Massif: Insights from numerical modeling

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Evolution of the Bohemian Massif: Insights from numerical modeling Petra Maierová Supervisor: Doc of Geophysics Faculty of Mathematics and Physics Charles University in Prague #12;February 4, 2013Evolution Conclusions Outline #12;February 4, 2013Evolution of the Bohemian Massif: Insights from numerical modeling 3

  7. CSU ATS703 Fall 2012 Numerical Weather Prediction

    E-Print Network [OSTI]

    CSU ATS703 Fall 2012 Numerical Weather Prediction ATS703 is based on the course notes and papers method. A crucial element of accurate weather prediction is initialization, which is briefly discussed in Chapter 11. In the next decade, numerical weather prediction will expe- rience a revolution in model

  8. KH Computational Physics-2006 Basic Numerical Algorithms Integration

    E-Print Network [OSTI]

    Glashausser, Charles

    KH Computational Physics- 2006 Basic Numerical Algorithms Integration Numerical integration competing factors one needs to consider · speed - number of function evaluations or grid points · precision or "smart" meshes with lower order routines Kristjan Haule, 2006 ­1­ #12;KH Computational Physics- 2006

  9. Numerical Simulation in Applied Geophysics. From the Mesoscale to the

    E-Print Network [OSTI]

    Santos, Juan

    Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale Juan E. Santos Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale ­ p. #12;Introduction. I layering, fractures and craks at the mesoscale (on the order of centimeters) are common in the earth

  10. NUMERICAL INVESTIGATION OF CAVITATION IN MULTI-DIMENSIONAL COMPRESSIBLE FLOWS

    E-Print Network [OSTI]

    NUMERICAL INVESTIGATION OF CAVITATION IN MULTI-DIMENSIONAL COMPRESSIBLE FLOWS KRISTEN J. DEVAULT, cavitation, pseudospectral AMS subject classifications. 35Q30, 65M70, 76N99 1. Introduction. A long to first make a careful numerical study of the simplest possible scenario where one could expect cavitation

  11. Numerical Simulation of a Natural Circulation Steam Generator

    E-Print Network [OSTI]

    Weinmüller, Ewa B.

    Numerical Simulation of a Natural Circulation Steam Generator W. Linzer \\Lambda , K. Ponweiser circulation steam generator. We focus on a model with a simple geometry consisting of two vertical pipes properties of water and steam. We present a numerical algorithm based on an explicit upwind discretization

  12. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal. Meth. Geomech. 2009; 33:285308

    E-Print Network [OSTI]

    Peirce, Anthony

    INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal of engineering applications such as pavement design, stress analysis of mining excavations, and hydraulic. In the petroleum industry, hydraulic fractures are deliberately created in oil and gas reservoirs to substantially

  13. Simple intrinsic defects in GaAs : numerical supplement.

    SciTech Connect (OSTI)

    Schultz, Peter Andrew

    2012-04-01T23:59:59.000Z

    This Report presents numerical tables summarizing properties of intrinsic defects in gallium arsenide, GaAs, as computed by density functional theory. This Report serves as a numerical supplement to the results published in: P.A. Schultz and O.A. von Lilienfeld, 'Simple intrinsic defects in GaAs', Modelling Simul. Mater. Sci Eng., Vol. 17, 084007 (2009), and intended for use as reference tables for a defect physics package in device models. The numerical results for density functional theory calculations of properties of simple intrinsic defects in gallium arsenide are presented.

  14. Grid-independent Issue in Numerical Heat Transfer

    E-Print Network [OSTI]

    Yao Wei; Wang Jian; Liao Guangxuan

    2006-09-26T23:59:59.000Z

    Grid independent is associated with the accuracy or even rationality of numerical results. This paper takes two-dimensional steady heat transfer for example to reveal the effect of grid resolution on numerical results. The law of grid dependence is obtained and a simple mathematical formula is presented. The production acquired here can be used as the guidance in choosing grid density in numerical simulation and get exact grid independent value without using infinite fine grid. Through analyzing grid independent, we can find the minimum number of grid cells that is needed to get grid-independent results. Such strategy can save computational resource while ensure a rational computational result.

  15. Testing gravitational-wave searches with numerical relativity waveforms: Results from the first Numerical INJection Analysis (NINJA) project

    E-Print Network [OSTI]

    Benjamin Aylott; John G. Baker; William D. Boggs; Michael Boyle; Patrick R. Brady; Duncan A. Brown; Bernd Brügmann; Luisa T. Buchman; Alessandra Buonanno; Laura Cadonati; Jordan Camp; Manuela Campanelli; Joan Centrella; Shourov Chatterji; Nelson Christensen; Tony Chu; Peter Diener; Nils Dorband; Zachariah B. Etienne; Joshua Faber; Stephen Fairhurst; Benjamin Farr; Sebastian Fischetti; Gianluca Guidi; Lisa M. Goggin; Mark Hannam; Frank Herrmann; Ian Hinder; Sascha Husa; Vicky Kalogera; Drew Keppel; Lawrence E. Kidder; Bernard J. Kelly; Badri Krishnan; Pablo Laguna; Carlos O. Lousto; Ilya Mandel; Pedro Marronetti; Richard Matzner; Sean T. McWilliams; Keith D. Matthews; R. Adam Mercer; Satyanarayan R. P. Mohapatra; Abdul H. Mroué; Hiroyuki Nakano; Evan Ochsner; Yi Pan; Larne Pekowsky; Harald P. Pfeiffer; Denis Pollney; Frans Pretorius; Vivien Raymond; Christian Reisswig; Luciano Rezzolla; Oliver Rinne; Craig Robinson; Christian Röver; Lucía Santamaría; Bangalore Sathyaprakash; Mark A. Scheel; Erik Schnetter; Jennifer Seiler; Stuart L. Shapiro; Deirdre Shoemaker; Ulrich Sperhake; Alexander Stroeer; Riccardo Sturani; Wolfgang Tichy; Yuk Tung Liu; Marc van der Sluys; James R. van Meter; Ruslan Vaulin; Alberto Vecchio; John Veitch; Andrea Viceré; John T. Whelan; Yosef Zlochower

    2009-07-09T23:59:59.000Z

    The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational-wave data analysis communities. The purpose of NINJA is to study the sensitivity of existing gravitational-wave search algorithms using numerically generated waveforms and to foster closer collaboration between the numerical relativity and data analysis communities. We describe the results of the first NINJA analysis which focused on gravitational waveforms from binary black hole coalescence. Ten numerical relativity groups contributed numerical data which were used to generate a set of gravitational-wave signals. These signals were injected into a simulated data set, designed to mimic the response of the Initial LIGO and Virgo gravitational-wave detectors. Nine groups analysed this data using search and parameter-estimation pipelines. Matched filter algorithms, un-modelled-burst searches and Bayesian parameter-estimation and model-selection algorithms were applied to the data. We report the efficiency of these search methods in detecting the numerical waveforms and measuring their parameters. We describe preliminary comparisons between the different search methods and suggest improvements for future NINJA analyses.

  16. NUMERICAL SOLUTION OF BIVARIATE AND POLYANALYTIC POLYNOMIAL SYSTEMS

    E-Print Network [OSTI]

    problem in robotics, computer modeling and graphics, computational geometry and numerical optimization. We) the Research Council KU Leuven: (a) OT/10/038, (b) PF/10/002 Optimization in Engineering (OPTEC), (2

  17. NUMERICAL SOLUTION OF BIVARIATE AND POLYANALYTIC POLYNOMIAL SYSTEMS

    E-Print Network [OSTI]

    problem in robotics, computer modeling and graphics, computational geometry and numerical optimization. We) the Research Council KU Leuven: (a) project OT/10/038, (b) CoE EF/05/006 Optimization in Engineering (OPTEC

  18. LONGTIME ENERGY CONSERVATION OF NUMERICAL METHODS FOR OSCILLATORY DIFFERENTIAL EQUATIONS

    E-Print Network [OSTI]

    Tübingen, Universität

    LONG­TIME ENERGY CONSERVATION OF NUMERICAL METHODS FOR OSCILLATORY DIFFERENTIAL EQUATIONS ERNST­time energy conservation, second­order symmetric methods, frequency expansion, backward error analysis, Fermi

  19. An investigation of the numerical treatment of condensation

    E-Print Network [OSTI]

    Sasson, Joseph

    The simulation of complete condensation continues to challenge the numerical methods currently used for multi-phase flow modeling; especially at low pressures, the change of phase process from a two-phase mixture to liquid ...

  20. Numerical Simulations of Gamma-Ray Burst Explosions

    E-Print Network [OSTI]

    Lazzati, Davide; López-Cámara, Diego

    2015-01-01T23:59:59.000Z

    Gamma-ray bursts are a complex, non-linear system that evolves very rapidly through stages of vastly different conditions. They evolve from scales of few hundred kilometers where they are very dense and hot to cold and tenuous on scales of parsecs. As such, our understanding of such a phenomenon can truly increase by combining theoretical and numerical studies adopting different numerical techniques to face different problems and deal with diverse conditions. In this review, we will describe the tremendous advancement in our comprehension of the bursts phenomenology through numerical modeling. Though we will discuss studies mainly based on jet dynamics across the progenitor star and the interstellar medium, we will also touch upon other problems such as the jet launching, its acceleration, and the radiation mechanisms. Finally, we will describe how combining numerical results with observations from Swift and other instruments resulted in true understanding of the bursts phenomenon and the challenges still lyi...

  1. Geometric numerical integration of nonholonomic systems and optimal control problems

    E-Print Network [OSTI]

    M. de Leon; D. Martin de Diego; A. Santamaria Merino

    2002-12-02T23:59:59.000Z

    A geometric derivation of numerical integrators for nonholonomic systems and optimal control problems is obtained. It is based in the classical technique of generating functions adapted to the special features of nonholonomic systems and optimal control problems.

  2. Numerical modelling of hyperbolic conservation laws using bicharacteristics

    E-Print Network [OSTI]

    Hanke-Bourgeois, Martin

    volume methods -1- #12;Overview I. Hyperbolic Conservation Laws Theory of bicharacteristics and evolution, bicharacteritsics stability, accuracy, error analysis III. Numerical Experiments: Wave equation system, Euler eqs finite volume methods -2- #12;· airflow · hydraulic schock · meteorological flow Source: efluid

  3. Numerical Simulation Study on Transpired Solar Air Collector

    E-Print Network [OSTI]

    Wang, C.; Guan, Z.; Zhao, X.; Wang, D.

    2006-01-01T23:59:59.000Z

    The unglazed transpired solar air collector is now a well-recognized solar air heater for heating outside air directly. In this article, researchers introduced numerical simulation tools into the solar air collector research area, analyzed...

  4. Wavelet methods For the numerical simulation of incompressible fluids

    E-Print Network [OSTI]

    Starck, Jean-Luc

    Wavelet methods For the numerical simulation of incompressible fluids Erwan Deriaz Erwan Numerik, Seminar February 16th 2006 0-0 #12; Wavelets for the Navier-Stokes equations homogeneous or non homogeneous) With a wavelet discretization: £ ¦ ¨ 2 ©$# £ % ¦ ¨ 2 © & '' ( 1

  5. NUMERICAL MODELING FOR MULTIPHASE INCOMPRESSIBLE FLOW WITH PHASE CHANGE

    E-Print Network [OSTI]

    Abdou, Mohamed

    NUMERICAL MODELING FOR MULTIPHASE INCOMPRESSIBLE FLOW WITH PHASE CHANGE Xiao-Yong Luo, Ming-Jiu Ni for multiphase flows. A con- tinuum surface force (CSF) tension model is used in the present cases. Phase change

  6. Direct Numerical Simulation of the Flow in a Pebble Bed

    E-Print Network [OSTI]

    Ward, Paul

    2014-06-24T23:59:59.000Z

    bed reactors: dust generation and scaling, proceedings of ICAPP 2012, Chicago, June 24–28, 2012 [3] A. Shams, F. Roelofs, EMJ. Komen, E. Baglietto, 2013. “Quasi-direct numerical simulation of a pebble bed configuration. Part I: Flow (velocity...

  7. Numerical Approximations of Stochastic Optimal Stopping and Control Problems 

    E-Print Network [OSTI]

    Siska, David

    2007-01-01T23:59:59.000Z

    We study numerical approximations for the payoff function of the stochastic optimal stopping and control problem. It is known that the payoff function of the optimal stopping and control problem corresponds to the solution ...

  8. Numerical investigation of the heating process inside an industrial furnace

    E-Print Network [OSTI]

    Wolper, Pierre

    Numerical investigation of the heating process inside an industrial furnace Proposition: Combined furnace taking into account convective, conductive and radiative heat transfer. The model: Catalysis, Energy Materials, Performance Materials and Recycling. Each business area is divided into market

  9. Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation

    E-Print Network [OSTI]

    Kulkarni, Salil Subhash

    2011-02-22T23:59:59.000Z

    line is the primary reason for absence of a theoretical solution to get the analytical dispersion curves. The numerical results are then verified with experimental tests using a non-contact and broadband laser detection technique. The methodology...

  10. Numerical Simulation Study on Transpired Solar Air Collector 

    E-Print Network [OSTI]

    Wang, C.; Guan, Z.; Zhao, X.; Wang, D.

    2006-01-01T23:59:59.000Z

    The unglazed transpired solar air collector is now a well-recognized solar air heater for heating outside air directly. In this article, researchers introduced numerical simulation tools into the solar air collector research area, analyzed...

  11. Numerical and Experimental Investigation of Tidal Current Energy Extraction 

    E-Print Network [OSTI]

    Sun, Xiaojing

    2008-01-01T23:59:59.000Z

    Numerical and experimental investigations of tidal current energy extraction have been conducted in this study. A laboratory-scale water flume was simulated using commercial computational fluid dynamics (CFD) code FLUENT. ...

  12. CSE/Math 555: Numerical Optimization Techniques Course Announcement

    E-Print Network [OSTI]

    Shontz, Suzanne M.

    towards graduate students, researchers and faculty in · computer science and engineering · mathematics portfolios Description: The course will emphasize the design and mathematical analysis of numerical op: unconstrained optimization methods, automatic differentiation, nonlinear equations, constrained optimization

  13. An experimental and numerical study of wind turbine seismic behavior

    E-Print Network [OSTI]

    Prowell, I.

    2011-01-01T23:59:59.000Z

    3.2.1 Description of Test Wind Turbine . . . . . .Figure 1.2: Components of a modern wind turbine . . . . . .Experimental and Numerical Seismic Response of a 65-kW Wind

  14. Numerical simulation of flow separation control by oscillatory fluid injection

    E-Print Network [OSTI]

    Resendiz Rosas, Celerino

    2005-08-29T23:59:59.000Z

    and Lomax. The application of synthetic jet actuators is based in their ability to energize the boundary layer, thereby providing signifcant increase in the lift coefficient. This has been corroborated experimentally and it is corroborated numerically...

  15. Householder Symposium on Numerical Linear Algebra June 1721, 2002

    E-Print Network [OSTI]

    Higham, Nicholas J.

    for discussions. This year's symposium is held at Peebles Hotel Hydro in the small town of Peebles (populationHouseholder Symposium on Numerical Linear Algebra June 17­21, 2002 Peebles Hotel Hydro, Scotland

  16. Multiscale numerical methods for some types of parabolic equations

    E-Print Network [OSTI]

    Nam, Dukjin

    2009-05-15T23:59:59.000Z

    method. The goal of the second problem is to develop efficient multiscale numerical techniques for solving turbulent diffusion equations governed by celluar flows. The solution near the separatrices can be approximated by the solution of a system of one...

  17. Prediction of Thermoacoustic Instabilities: Numerical Study of Mach number Effects.

    E-Print Network [OSTI]

    Nicoud, Franck

    Prediction of Thermoacoustic Instabilities: Numerical Study of Mach number Effects. K. Wieczorek equations. I. Introduction In the calculation of thermoacoustic instabilities, an assumption lead to significant changes in the evaluation of the thermo-acoustic modes present in the combustion

  18. GEOMETRIC NUMERICAL INTEGRATION OF INEQUALITY CONSTRAINED, NONSMOOTH HAMILTONIAN SYSTEMS

    E-Print Network [OSTI]

    Columbia University

    and obtain an associated framework for composing ge- ometric numerical integration methods for inequality-equality­constrained geometric integration setting, we target long-term structure preservation. In the inequality-constrained

  19. Numerical simulation of flow separation control by oscillatory fluid injection 

    E-Print Network [OSTI]

    Resendiz Rosas, Celerino

    2005-08-29T23:59:59.000Z

    In this work, numerical simulations of flow separation control are performed. The sep-aration control technique studied is called 'synthetic jet actuation'. The developed code employs a cell centered finite volume scheme which handles viscous...

  20. Assessment of the MUSTA approach for numerical relativistic dynamics

    E-Print Network [OSTI]

    Blakely, P. M.; Nikiforakis, N.; Henshaw, W. D.

    2015-03-04T23:59:59.000Z

    waves 1. Introduction The numerical solution of the relativistic hydrodynamical equa- tions is of importance to the simulation of astrophysical phe- nomena such as gamma-ray bursts, supernova core-collapse, and relativistic wind accretion. Although...

  1. 2.086 Numerical Computation for Mechanical Engineers, Spring 2012

    E-Print Network [OSTI]

    Patera, Anthony

    This class introduces elementary programming concepts including variable types, data structures, and flow control. After an introduction to linear algebra and probability, it covers numerical methods relevant to mechanical ...

  2. Characterization of Lung's Emphysema Distribution: Numerical Assessment of Disease Development

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Characterization of Lung's Emphysema Distribution: Numerical Assessment of Disease Development M, Egypt. Abstract--Chronic Obstructive Pulmonary Disease (COPD) refers to a group of lung diseases bronchitis. Pulmonary emphysema is defined as a lung disease characterized by "abnormal enlargement

  3. ASYMPTOTIC AND NUMERICAL MODELLING OF FLOWS IN FRACTURED POROUS MEDIA

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    numerical results are reported showing different kinds of flows in the case of impermeable or partially. Joliot Curie, F-13453 Marseille cedex 13. Email : [angot,fboyer,fhubert]@cmi.univ-mrs.fr cl EDP Sciences

  4. Effective velocities in fractured media: a numerical study using the ...

    E-Print Network [OSTI]

    2002-03-18T23:59:59.000Z

    theories that predict the effective P- and S-wave velocities in fractured materials in ... can be treated only by numerical techniques because analyt- ... apply the rotated staggered grid (Saenger, Gold and Shapiro ..... (r ? 0:2) and for SH-

  5. Segmented vs conventional numerals: legibility and long term retention

    E-Print Network [OSTI]

    Hill, Steve Edgar

    1971-01-01T23:59:59.000Z

    SEGMENTED VS CONVENTIONAL NUMERALS: LEGIBILITY AND LONG TERM RETENTION A Thesis by STEVE EDGAR HILL Submitted to the Graduate College of Texas A8cM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1971 Ma]or Subject: Industrial Engineering SEGMENTED VS CONVENTIONAL NUMERALS: LEGIBILITY AND LONG TERM RETENTION A Thesis STEVE EDGAR HILL Approved as to style and content by: Elias Chairman of Committee) r. A. W. ortham (Head...

  6. Numerical studies of a simple Coulomb blockade model

    E-Print Network [OSTI]

    Shao, Jianfeng

    1991-01-01T23:59:59.000Z

    NUMERICAL STUDIES OF A SIMPLE COULOMB BLOCKADE MODEL A Thesis by JIANFENG SHAO Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1991... Major Subject: Physics NUMERICAL STUDIES OF A SIMPLE COULOMB BLOCKADE MODEL A Thesis by JIANFENG SHAO Approved as to style and content by: Roland E, Allen (Chair of Committee) /, 1 r oseph H. R s ( Member) Chin B. Su (Member) Richard L...

  7. Numerical simulation of imbibition process in fractured cores

    E-Print Network [OSTI]

    Jiang, Chunhuan

    1992-01-01T23:59:59.000Z

    of the equations describing the imbibition of pure and carbonated water and the countercurrent flow of oil in porous rocks. Comparison between numerical solutions and experimental observations indicates that the models do simulate water imbibition and the COp.... ~~ +Blair 1964 presented a numerical solution for equations describing oil displacement by countercurrent water imbibition. Calculations were made for water imbibition into both linear and radial systems. Blair studied the effects on imbibition rates as a...

  8. Numerical simulation is vital to analyse complex chemi-cal or physical processes. The Institute for Numerical

    E-Print Network [OSTI]

    Griebel, Michael

    , says: "The power supplies and the cooling systems could not cope with the constant heavy loads of data computer networks supplied by specialist organisations have performed the institute's numerical simulation

  9. Naval Postgraduate School Monterey, California 939435138

    E-Print Network [OSTI]

    warfare problems; and · attracts and retains quality faculty. Academic Programs To meet its educational: Graduate School of Operational and Information Sciences Computer Science· Computer Technology· Electronic Warfare Systems· Human Syst

  10. Naval Postgraduate School Monterey, California 939435138

    E-Print Network [OSTI]

    on DoD­relevant issues; · advances DoN/DoD technology; · solves warfare problems; and · attracts Sciences Applied Mathematics· Combat Systems Science and Technology· Electronic Systems Engineering

  11. Naval Postgraduate School Monterey, California 939435138

    E-Print Network [OSTI]

    warfare problems; and · attracts and retains quality faculty. Academic Programs To meet its educational of Engineering and Applied Sciences Applied Mathematics· Combat Systems Science and Technology· Electronic

  12. students at the naval postgraduate school

    E-Print Network [OSTI]

    engineering......................... 33 electronic Warfare systems engineering Warfare)............................... 64 defense analysis (national security affairs............................................... 28 information Warfare systems engineering..................................................9

  13. Master's programme in Naval Architecture Programme outline

    E-Print Network [OSTI]

    Haviland, David

    with sustainable transport systems.In the maritime sector this involves further improvements in energy efficiency, but also in other fields. The primary challenge for the future is to develop a sustainable society.Other challenges are to develop techniques for conversion of the energy in the ocean waves and currents for human

  14. EIS-0453: Recapitalization of Infrastructure Supporting Naval...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Room 2251 N. Boulevard Idaho Falls, ID 83402 Telephone: (208) 526-1185 Marshall Public Library 113 South Garfield Pocatello, ID 83204 Telephone: (208) 232-1263 Idaho Falls Public...

  15. August 2010 Page 1 NAVAL POSTGRADUATE SCHOOL

    E-Print Network [OSTI]

    , Colleen Nickles, James McGarrah Lead and NPS Contact: Christine Haska · The future of IT · Cybersecurity Zhea Lead: Frank Giraldo NPS Contact: Colleen Nickles · Disaster/emergency preparedness · Leadership

  16. Naval Nuclear Propulsion | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparency VisitSilver Toyota1ResourceloadingOur Mission / Powering|

  17. naval reactors | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , (Energy97,1996 http://www.eia.doe.gov N Y M Enaval

  18. Fuel Cell Power Plant Experience Naval Applications

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdfTechnologies Program (FCTP) (Fact Sheet)UTCLift

  19. Categorical Exclusion Determinations: Naval Nuclear Propulsion Program |

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO OverviewAttachments EnergyFebruary3 CategoricalIdahoof EnergyProgramsof

  20. Naval Petroleum Reserves | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011 at 2:00 P.M.

  1. About Naval Reactors | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP Related LinksATHENA could reduceCustomerEIA's 2015questionsNNSA

  2. Chimera: A hybrid approach to numerical loop quantum cosmology

    E-Print Network [OSTI]

    Diener, Peter; Singh, Parampreet

    2013-01-01T23:59:59.000Z

    The existence of a quantum bounce in isotropic spacetimes is a key result in loop quantum cosmology (LQC), which has been demonstrated to arise in all the models studied so far. In most of the models, the bounce has been studied using numerical simulations involving states which are sharply peaked and which bounce at volumes much larger than the Planck volume. An important issue is to confirm the existence of the bounce for states which have a wide spread, or which bounce closer to the Planck volume. Numerical simulations with such states demand large computational domains, making them very expensive and practically infeasible with the techniques which have been implemented so far. To overcome these difficulties, we present an efficient hybrid numerical scheme using the property that at the small spacetime curvature, the quantum Hamiltonian constraint in LQC, which is a difference equation with uniform discretization in volume, can be approximated by a Wheeler-DeWitt differential equation. By carefully choosi...

  3. Numerical simulation of water flow around a rigid fishing net

    E-Print Network [OSTI]

    Roger Lewandowski; Géraldine Pichot

    2006-12-20T23:59:59.000Z

    This paper is devoted to the simulation of the flow around and inside a rigid axisymmetric net. We describe first how experimental data have been obtained. We show in detail the modelization. The model is based on a Reynolds Averaged Navier-Stokes turbulence model penalized by a term based on the Brinkman law. At the out-boundary of the computational box, we have used a "ghost" boundary condition. We show that the corresponding variational problem has a solution. Then the numerical scheme is given and the paper finishes with numerical simulations compared with the experimental data.

  4. Numerical Analysis of Spherically Convergent Rayleigh-Taylor Experiments

    SciTech Connect (OSTI)

    Galmiche, D.; Cherfils, C.; Glendinning, S.G.; Remington, B.A.; Richard, A.

    2000-05-17T23:59:59.000Z

    In the frame of a CEA/US DOE collaboration, radiation driven spherically convergent experiments were performed on the Nova laser in order m measure the Rayleigh-Taylor growth at the ablation front. Numerical simulations using the 2D Lagrangian code FCI2 have correctly reproduced experiments in moderate convergent geometry. [C. Cherfils et al., PRL 83, 5507 (1999)]. Experiments have addressed convergence ratios up to 4 by considering larger capsules, larger hohlraum and longer laser pulses [S.G. Glendinning et al., to be published in Physics of Plasmas]. Numerical analysis of these high convergence implosions is presented, and the effect of convergence on the Rayleigh-Taylor growth is investigated.

  5. ATS 680 A6: Applied Numerical Weather Prediction MW, 1:00-1:50 PM, ACRC Room 212B

    E-Print Network [OSTI]

    , Parameterization Schemes: Keys to Understanding Numerical Weather Prediction Models, Cambridge University Press in class. Numerical model The primary numerical model that will be u

  6. Hydraulic Fractures: multiscale phenomena, asymptotic and numerical solutions

    E-Print Network [OSTI]

    Peirce, Anthony

    Hydraulic Fractures: multiscale phenomena, asymptotic and numerical solutions SANUM Conference (UMN) Eduard Siebrits (SLB) #12;2 Outline · Examples of hydraulic fractures · Governing equations well stimulation Fracturing Fluid Proppant #12;5 Quarries #12;6 Magma flow Tarkastad #12;7 Model EQ 1

  7. Hydraulic Fractures: multiscale phenomena, asymptotic and numerical solutions

    E-Print Network [OSTI]

    Peirce, Anthony

    Hydraulic Fractures: multiscale phenomena, asymptotic and numerical solutions CSIRO CSS TCP Detournay (UMN) Eduard Siebrits (SLB) #12;2 Outline · Examples of hydraulic fractures · Governing equations well stimulation Fracturing Fluid Proppant #12;5 Quarries #12;6 Magma flow Tarkastad #12;7 Model EQ 1

  8. Numerical Model of a Tensioner System and Flex Joint

    E-Print Network [OSTI]

    Huang, Han

    2013-07-27T23:59:59.000Z

    Top Tensioned Riser (TTR) and Steel Catenary Riser (SCR) are often used in a floating oil/gas production system deployed in deep water for oil transport. This study focuses on the improvements to the existing numerical code, known as CABLE3D...

  9. Pyrolysis in Porous Media: Numerical Analysis and Comparison to Experiments.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    by the combustor [7,8]. Carbon- or oxide-based composite materials are preferred for thermal, mechanical components in aerospace vehicles such as combustors in rocket engines. The numerical simulation = activation energy (J.mol-1 ) H = enthalpy of reaction (J.mol-1 ) effk = effective thermal conductivity

  10. Numerical Construction of Likelihood Distributions and the Propagation of Errors

    E-Print Network [OSTI]

    J. Swain; L. Taylor

    1997-12-12T23:59:59.000Z

    The standard method for the propagation of errors, based on a Taylor series expansion, is approximate and frequently inadequate for realistic problems. A simple and generic technique is described in which the likelihood is constructed numerically, thereby greatly facilitating the propagation of errors.

  11. Simple intrinsic defects in InAs : numerical predictions.

    SciTech Connect (OSTI)

    Schultz, Peter Andrew

    2013-03-01T23:59:59.000Z

    This Report presents numerical tables summarizing properties of intrinsic defects in indium arsenide, InAs, as computed by density functional theory using semi-local density functionals, intended for use as reference tables for a defect physics package in device models.

  12. Numerical Convergence Properties of Option Pricing PDEs with Uncertain Volatility

    E-Print Network [OSTI]

    Forsyth, Peter A.

    is then simply the cost of this hedge. The principal source of risk is the price of the underlying assetNumerical Convergence Properties of Option Pricing PDEs with Uncertain Volatility D. M. Pooley , P, 2001 Abstract The pricing equations derived from uncertain volatility models in finance are often cast

  13. NUMERICAL SIMULATIONS OF ROTATING SUNSPOTS G. J. J. Botha1

    E-Print Network [OSTI]

    Rucklidge, Alastair

    , at a depth of 0 to 5 Mm there exist subsurface horizontal vortical flows, while there are also suggestions's convection zone. The solution forms a central flux tube in the cylindrical numerical domain, with convection, vortical flow. As a result, the azimuthal velocity and mag- netic field have their maximum values close

  14. Friction versus dilation revisited: Insights from theoretical and numerical models

    E-Print Network [OSTI]

    Einat, Aharonov

    Friction versus dilation revisited: Insights from theoretical and numerical models N. Makedonska,1 controlled by the frictional strength of the fault gouge, a granular layer that accumulates between the fault friction coefficient) of such granular layers is the systems resistance to dilation, a byprocess

  15. Numerical studies of the metamodel fitting and validation processes

    E-Print Network [OSTI]

    Boyer, Edmond

    algorithms and application to a nuclear safety computer code show the relevance of this new sequential this problem consists in replacing cpu time expensive computer models by cpu inexpensive mathematical functions to fit the metamodel) has to provide adequate space filling properties. We adopt a numerical approach

  16. Diffusion and Dispersion Characterization of a Numerical Tsunami Model

    E-Print Network [OSTI]

    Tolkova, Elena

    and numerical model. This plan is currently under devel- opment at the NCTR and a proof of concept has been-computed database of unit source solutions to determine the offshore tsunami waves. It then uses the MOST model (in nested grid mode) to propagate the offshore waves onshore for select regions. The critical factor

  17. Efficient Numerical Simulation for Long Range Wave Propagation 1

    E-Print Network [OSTI]

    Solna, Knut

    Efficient Numerical Simulation for Long Range Wave Propagation 1 Kai Huang 2 George Papanicolaou 3 for simulating wave propagation over long dis- tances with both weak and strong scatterers. In domains with weak heterogeneities the wave field is decomposed into forward propagating and back scattered modes using two coupled

  18. Numerical algorithms for the computation of the Smith normal

    E-Print Network [OSTI]

    Seberry, Jennifer

    Numerical algorithms for the computation of the Smith normal form of integral matrices C of the Smith normal form of integral matrices are described. More specifically, the com­ pound matrix method of the algorithms. AMS Subject Classification: Primary 65F30, Secondary 15A21, 15A36. Key words and phrases: Smith

  19. Numerical simulation of cooling gas injection using adaptive multiscale techniques

    E-Print Network [OSTI]

    Numerical simulation of cooling gas injection using adaptive multiscale techniques Wolfgang Dahmen is investigated. Keywords: Finite Volume Method, Film cooling, Cooling gas injection, Multiscale techniques, Grid Mathematik, RWTH Aachen, Templergraben 55, 52056 Aachen Abstract The interaction of a jet of cooling gas

  20. Numerical Simulation of Wave Loads on Static Offshore Structures

    E-Print Network [OSTI]

    of Wave Loads on Static Offshore Structures ­ p. #12;VOF Free Surface Flow Model Modelling of Free Surface-cell resolution of prescribed wave forms in relaxation zones · Support for dynamic mesh with 6-DOF solver meshNumerical Simulation of Wave Loads on Static Offshore Structures Hrvoje Jasak, Inno Gatin, Vuko

  1. Translation and integration of numerical atomic orbitals in linear molecules

    SciTech Connect (OSTI)

    Heinäsmäki, Sami, E-mail: sami.heinasmaki@gmail.com [Department of Physics, University of Oulu, FIN-90014, Oulu (Finland)] [Department of Physics, University of Oulu, FIN-90014, Oulu (Finland)

    2014-02-14T23:59:59.000Z

    We present algorithms for translation and integration of atomic orbitals for LCAO calculations in linear molecules. The method applies to arbitrary radial functions given on a numerical mesh. The algorithms are based on pseudospectral differentiation matrices in two dimensions and the corresponding two-dimensional Gaussian quadratures. As a result, multicenter overlap and Coulomb integrals can be evaluated effectively.

  2. Numerical integration of functions originating from quantum mechanics

    E-Print Network [OSTI]

    Armiento, Rickard

    Numerical integration of functions originating from quantum mechanics R. Armiento Department Applications in quantum physics commonly involve large batches of integrals of smooth but very oscillatory for evaluating such integrals. The routines studied include: two from the QUADPACK package based on Gauss

  3. Breakdown of analyticity: From rigorous results to numerics

    E-Print Network [OSTI]

    Doedel, Eusebius

    work with Rafael de la Llave #12;Computing the breakdown Quasi-Periodic Solutions Outline QuasiBreakdown of analyticity: From rigorous results to numerics Renato Calleja Applied Mathematics-Periodic Solutions Twist Maps Models arising in Statistical Mechanics Computation of the Breakdown Small divisors

  4. Numerical simulation of the truss spar 'Horn Mountain' using COUPLE

    E-Print Network [OSTI]

    Theckum Purath, Basil

    2006-08-16T23:59:59.000Z

    using an integrated marine monitoring system attached to the truss spar. In this study, dynamic analysis of the truss spar interacting with its mooring and riser system was performed using a time-domain numerical code, known as Â?COUPLEÂ?. The simulated...

  5. A Generic Framework for Interprocedural Analysis of Numerical Properties

    E-Print Network [OSTI]

    Müller-Olm, Markus

    A Generic Framework for Interprocedural Analysis of Numerical Properties Markus M¨uller-Olm1, Germany markus.mueller-olm@cs.uni-dortmund.de 2 TU M¨unchen, Institut f¨ur Informatik, I2 80333 M of the abstracted collecting semantics is also used by M¨uller-Olm and Seidl in [12] where (in absence of equality

  6. Black hole free energy during charged collapse: a numerical study

    E-Print Network [OSTI]

    Hugues Beauchesne; Ariel Edery

    2012-05-19T23:59:59.000Z

    We perform a numerical investigation of the thermodynamics during the collapse of a charged (complex) scalar field to a Reissner-Nordstr\\"om (RN) black hole in isotropic coordinates. Numerical work on gravitational collapse in isotropic coordinates has recently shown that the negative of the total Lagrangian approaches the Helmholtz free energy F= E-TS of a Schwarzschild black hole at late times of the collapse (where E is the black hole mass, T the temperature and S the entropy). The relevant thermodynamic potential for the RN black hole is the Gibbs free energy G=E-TS-$\\Phi_H$ Q where Q is the charge and $\\Phi_H$ the electrostatic potential at the outer horizon. In charged collapse, there is a large outgoing matter wave which prevents the exterior from settling quickly to a static state. However, the interior region is not affected significantly by the wave. We find numerically that the interior contribution to the Gibbs free energy is entirely gravitational and accumulates in a thin shell just inside the horizon. The entropy is gravitational in origin and one observes dynamically that it resides on the horizon. We also compare the numerical value of the interior Lagrangian to the expected analytical value of the interior Gibbs free energy for different initial states and we find that they agree to within 10-13%. The two values are approaching each other so that their difference decreases with more evolution time.

  7. IVCNZ 2002 SUBMISSION 1 Pose Estimation by Applied Numerical Techniques

    E-Print Network [OSTI]

    McCane, Brendan

    process of how to deform the model in order to bring it into agreement with the input image. An energy. Keywords--- Numerical Optimisation, Pose Estimation, Analysis­by­Synthesis, Optimisation Algorithms (HCI). Traditionally, researchers have split approaches into an appearance­based approach and a model

  8. Numerical Modeling of the 2011 Tohoku Earthquake Tsunami

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    Evolution of Ocean WAVEs) to reconstruct the tsunami across the Pacific and its transformation aroundNumerical Modeling of the 2011 Tohoku Earthquake Tsunami Yoshiki Yamazaki Post-doctoral Research 2011 Tohoku earthquake (Mw 9.0) generated a massive tsunami devastated the entire Pacific coast

  9. Chimera: A hybrid approach to numerical loop quantum cosmology

    E-Print Network [OSTI]

    Peter Diener; Brajesh Gupt; Parampreet Singh

    2013-11-12T23:59:59.000Z

    The existence of a quantum bounce in isotropic spacetimes is a key result in loop quantum cosmology (LQC), which has been demonstrated to arise in all the models studied so far. In most of the models, the bounce has been studied using numerical simulations involving states which are sharply peaked and which bounce at volumes much larger than the Planck volume. An important issue is to confirm the existence of the bounce for states which have a wide spread, or which bounce closer to the Planck volume. Numerical simulations with such states demand large computational domains, making them very expensive and practically infeasible with the techniques which have been implemented so far. To overcome these difficulties, we present an efficient hybrid numerical scheme using the property that at the small spacetime curvature, the quantum Hamiltonian constraint in LQC, which is a difference equation with uniform discretization in volume, can be approximated by a Wheeler-DeWitt differential equation. By carefully choosing a hybrid spatial grid allowing the use of partial differential equations at large volumes, and with a simple change of geometrical coordinate, we obtain a surprising reduction in the computational cost. This scheme enables us to explore regimes which were so far unachievable for the isotropic model in LQC. Our approach also promises to significantly reduce the computational cost for numerical simulations in anisotropic LQC using high performance computing.

  10. A probabilistic numerical method for optimal multiple switching problem

    E-Print Network [OSTI]

    performing the numerical resolution, the storage of the Monte Carlo simulation paths is not needed. Then, we at the minimum cost under a given constraint on the loss of load probability or on the level of energy non to thank Thomas Vareschi, Xavier Warin and the participants of the FiME seminar and the Energy Finance

  11. Numerical Prediction of High-Impact Local Weather: A

    E-Print Network [OSTI]

    Xue, Ming

    Chapter 6 Numerical Prediction of High-Impact Local Weather: A Driver for Petascale Computing Ming winds, lightning, hurricanes and winter storms, cause hundreds of deaths and average annual economic of mitigating the impacts of such events on the economy and society is obvious, our ability to do so

  12. Numerical simulation of turbulent jet primary breakup in Diesel engines

    E-Print Network [OSTI]

    Helluy, Philippe

    Numerical simulation of turbulent jet primary breakup in Diesel engines Peng Zeng1 Marcus Herrmann" IRMA Strasbourg, 23.Jan.2008 #12;Introduction DNS of Primary Breakup in Diesel Injection Phase Transition Modeling Turbulence Modeling Summary Outline 1 Introduction 2 DNS of Primary Breakup in Diesel

  13. Numerical and experimental investigation of nonlinear properties of rubber absorber

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Numerical and experimental investigation of nonlinear properties of rubber absorber in rail, Shanghai, 201804 Abstract: A dynamic nonlinear model of rubber absorber in railway fastening is proposed in this paper based on a superposition principal demonstrating that the restoring force of rubber components

  14. Department of Numerical Analysis Modeling the Austenite Ferrite

    E-Print Network [OSTI]

    Vuik, Kees

    Department of Numerical Analysis Modeling the Austenite Ferrite Transformation by Cellular Ferrite Transformation by Cellular Automaton Improving Interface Stability Master of Science Thesis. Computational Materials Science 48.3 (2010): 692-699] for the austenite to ferrite transformation in low

  15. EXPERIMENTAL AND NUMERICAL STUDY OF TRANSIENT ELECTRONIC CHIP COOLING BY

    E-Print Network [OSTI]

    component to ensure reliable and stable performance and prevent any failure or malfunction [2, 3]. The heatEXPERIMENTAL AND NUMERICAL STUDY OF TRANSIENT ELECTRONIC CHIP COOLING BY LIQUID FLOW State University, Columbus, Ohio, USA Cooling of electronic chips has become a critical aspect

  16. Inertia ratchets: A numerical study versus theory B. Lindner,1

    E-Print Network [OSTI]

    Lindner, Benjamin

    Inertia ratchets: A numerical study versus theory B. Lindner,1 L. Schimansky-Geier,1 P. Reimann,2 P in a periodic but asymmetric potential ratchet is investigated. Our special focus is on the influence of inertia cur- rent in periodic structures that lack reflection symmetry ratchets , e.g. see the reviews 1

  17. On the numerical solution of some problems of environmental pollution

    E-Print Network [OSTI]

    Ehrhardt, Matthias

    On the numerical solution of some problems of environmental pollution Quang A Dang1 , Matthias world and their importance will even increase in the future. High pollution of air, water and soil may to the mathematical formula- tion of air pollution models. Let G be a cylindrical domain in the three

  18. Numerical Simulation of the Wave Bottom Boundary Layer

    E-Print Network [OSTI]

    Slinn, Donald

    boundary layer. Oscillatory boundary layers are examined using a high-resolution time-dependent threeNumerical Simulation of the Wave Bottom Boundary Layer Over a Smooth Surface. Part 1: Three for turbulent boundary layers that occur over a smooth bottom. Results indicate that turbulence levels

  19. ROOF CHARACTERISATION RELATED TO FIRE PROPAGATION RISK BY A NUMERICAL

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ROOF CHARACTERISATION RELATED TO FIRE PROPAGATION RISK BY A NUMERICAL APPROACH L. Fournier1 , A by thé roof: - one is thé use of intumescent strips on thé roof, - thé other consists of extending thé fire walls (typically 70 cm or 1 m) above thé roof levé1 in order to prevent thé flame from being blown

  20. Numerical Modeling of Brain Dynamics in Traumatic Situations -Impulsive Translations

    E-Print Network [OSTI]

    Burtscher, Martin

    .S.A. Abstract We numerically model the brain dy- namics during and after impulsive head translations using brain injuries appear among boxers and shaken babies despite minimal rotations of their heads. Modeling head translations also helps understand the brain dynamics during head rotations about an arbitrary

  1. Numerical Methods for the Valuation of Synthetic Collateralized Debt Obligations

    E-Print Network [OSTI]

    Toronto, University of

    Numerical Methods for the Valuation of Synthetic Collateralized Debt Obligations by Xiaofang Ma Methods for the Valuation of Synthetic Collateralized Debt Obligations Xiaofang Ma Doctor of Philosophy methods for synthetic CDO valuation are presented. iii #12;Acknowledgements Although many people have

  2. Particle acceleration in solar flares: observations versus numerical simulations

    E-Print Network [OSTI]

    Particle acceleration in solar flares: observations versus numerical simulations A O Benz, P C processes such as isotropization and magnetic trapping are made. Keywords: Particle acceleration, hard X. As the electric field of reconnection with possible parallel component capable of particle acceleration is limited

  3. CGMurphi: Automatic Synthesis of Numerical Controllers for Nonlinear Hybrid Systems

    E-Print Network [OSTI]

    Tronci, Enrico

    CGMurphi: Automatic Synthesis of Numerical Controllers for Nonlinear Hybrid Systems Giuseppe Della, thus much work is being done to create automatic controller synthesis tools. When dealing with critical systems, most of the times such controllers are required to be optimal and robust, i.e., they must achieve

  4. NUMERICAL APPROXIMATION OF P-SYSTEMS WITH COULOMB FRICTIONAL DAMPING

    E-Print Network [OSTI]

    to the precise nature of the dissipation. Dry (Coulomb) friction is a limit case that has not been fully analyzed in the presence of dry ­ Coulomb­ friction. A model is described in detail in Section 2. A discretizationNUMERICAL APPROXIMATION OF P-SYSTEMS WITH COULOMB FRICTIONAL DAMPING KRISTY COFFEY AND PIERRE A

  5. Direct Numerical Simulations and Modeling of Jets in Crossflow

    E-Print Network [OSTI]

    Mahesh, Krishnan

    Direct Numerical Simulations and Modeling of Jets in Crossflow A THESIS SUBMITTED TO THE FACULTY. i #12;To my parents and my grandparents, and to Ramnath ii #12;Abstract Jets in crossflow are used to study the different aspects of round jets in a crossflow. The first problem studies

  6. Control of Jets in Crossflow using Direct Numerical Simulations

    E-Print Network [OSTI]

    Mahesh, Krishnan

    Control of Jets in Crossflow using Direct Numerical Simulations A THESIS SUBMITTED TO THE FACULTY in crossflow by axial pulsing. Our main idea is that pulsing generates vortex rings; the effect of pulsing on jets in crossflow can therefore be explained by studying the behavior of vortex rings in crossflow

  7. RisR1448(EN) Numerical Study of the

    E-Print Network [OSTI]

    is the better understanding of the physics of the aeroelastic motion of wind turbine blades in order to improve of wind turbine blades in order to improve the numerical simulation of such dynamical systems. In previous works, both aerodynamic damping cal- culations and fully-coupled aeroelastic simulations of wind turbine

  8. Numerical modelling and analysis of a room temperature magnetic

    E-Print Network [OSTI]

    Numerical modelling and analysis of a room temperature magnetic refrigeration system Thomas Frank and analysis of a room temperature magnetic refrigeration system Department: Fuel Cells and Solid State-dimensional mathematical model of an Active Magnetic Regenerator (AMR) system which is used for magnetic refrigeration

  9. Numerical Simulation of Titanium Production in the Plasma Quench Reactor

    E-Print Network [OSTI]

    Numerical Simulation of Titanium Production in the Plasma Quench Reactor Ray A. Beny and Randall A the nucleation of condensates in the steady-state supersonic nozzle flow generated in a plasma quench reactor reactions. The device has been termed the Plasma Quench Reactor or PQR. The PQR has demonstrated the ability

  10. On the Numerical Simulation of Waterflooding of Heterogeneous

    E-Print Network [OSTI]

    Furtado, Fred

    On the Numerical Simulation of Waterflooding of Heterogeneous Petroleum Reservoirs Jim Douglas, Jr Simulation of Waterflooding of Heterogeneous Petroleum Reservoirs · A two-stage operator-splitting allows consider as a model problem the two-phase immiscible displacement in petroleum reservoirs. A very detailed

  11. Cavitation level-acoustic intensity hysteresis: experimental and numerical characterization

    E-Print Network [OSTI]

    Boyer, Edmond

    Cavitation level-acoustic intensity hysteresis: experimental and numerical characterization P such as sonoporation, inertial cavitation is commonly considered as the main candidate inducing membrane poration. Thus, characterizing inertial cavitation, as related to bubble size distribution and medium history, is of great

  12. Probabilistic methods applied to 2D electromagnetic numerical dosimetry

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the determinist solution is widely recast [Ghanem and Kruger, 1996] and the so called non intrusive method on the non intrusive method because of the limitation of the numerical resources. Indeed, the intrusive using the polyno- mial chaos. There are two approaches: the so called intrusive method where

  13. On Numerical Methods for Hyperbolic Conservation Laws and Related Equations

    E-Print Network [OSTI]

    Bürger, Raimund

    A classical kinematical model of sedimentation of small equal-sized particles dispersed in a viscous fluidOn Numerical Methods for Hyperbolic Conservation Laws and Related Equations Modelling Sedimentation with nonlocal flux, systems of nonlinear conservation modelling the sedimentation of polydisperse suspensions

  14. Simulation of the secondary settling process with reliable numerical methods

    E-Print Network [OSTI]

    Bürger, Raimund

    are placed in alphabetical order Abstract A consistent model for the settling-compression-dispersion process The sedimentation process in the secondary settling tank (SST) is still a challenge in modelling the full Sedimentation, clarifier, conservation law, partial differential equation, numerical flux INTRODUCTION

  15. 155: Numerical Models of Groundwater Flow and Transport

    E-Print Network [OSTI]

    Sorek, Shaul

    155: Numerical Models of Groundwater Flow and Transport EKKEHARD HOLZBECHER1 AND SHAUL SOREK2 1. #12;2402 GROUNDWATER Calibration as a task cannot be separated from the other tasks. Inverse modeling of the Negev, J. Blaustein Institutes for Desert Research, Sede Boker, Israel The article gives an introduction

  16. RisR1252(EN) The Numerical Wind Atlas

    E-Print Network [OSTI]

    potential from high quality wind measurements. It estimates the local influences on the wind by small hillsRisø­R­1252(EN) The Numerical Wind Atlas -- the KAMM/WAsP Method Helmut P. Frank, Ole Rathmann The method of combining the Karlsruhe Atmospheric Mesoscale Model, KAMM, with the Wind Atlas Analysis

  17. university-logo Numerical stability analysis for thin film flow

    E-Print Network [OSTI]

    Marzuola, Jeremy

    university-logo Numerical stability analysis for thin film flow: toward rigorous verification Blake Barker Indiana University October 2, 2013 B. Rigorous verification #12;university-logo Viscous roll waves (Picture courtesy Neil Balmforth, UBC.) B. Rigorous verification #12;university-logo Viscous roll waves 0 2

  18. Numerical Modeling of Human Effect on Indoor Propagation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    several types of obstacles such a brick enclosure walls, one metal heater, two metal wardrobes, two metal antenna placed 85 cm above the floor level. The spatial step is /10, or is the wavelength, chosen by the numerical dispersions. The choice of the spatial step is a compromise between the minimization of inaccuracy

  19. Numerical simulations of welds of thick steel pieces of interest for the thermonuclear fusion ITER machine

    E-Print Network [OSTI]

    Carmignani, B

    2005-01-01T23:59:59.000Z

    Numerical simulations of welds of thick steel pieces of interest for the thermonuclear fusion ITER machine

  20. Numerical Analysis of Non-Uniformities and Anisotropy in High-Temperature Superconducting Coils

    E-Print Network [OSTI]

    Hu, Di; Ainslie, Mark D.; Zou, Jin; Cardwell, David A.

    2014-12-12T23:59:59.000Z

    , critical current density (superconductivity), high-temperature superconductors, numerical analysis, superconducting coils, transport ac loss....

  1. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal. Meth. Geomech., 2002; 26: 925944 (DOI: 10.1002/nag.223)

    E-Print Network [OSTI]

    Hamann, Bernd

    INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS Int. J. Numer. Anal geomechanics Boris Jeremi!cc1, *,y , Gerik Scheuermann2,3 , Jan Frey3 , Zhaohui Yang1 , Bernd Hamann2 , Kenneth is the visualization of stress tensors resulting from 3D numerical simulations in computational geomechanics

  2. Final joint environmental assessment for the construction and routine operation of a 12-kilovolt (KV) overhead powerline right-of-way, and formal authorization for a 10-inch and 8-inch fresh water pipeline right-of-way, Naval Petroleum Reserve No. 1, Kern County, California

    SciTech Connect (OSTI)

    Not Available

    1994-10-01T23:59:59.000Z

    The purpose and need of the proposed action, which is the installation of an overhead powerline extension from an Naval Petroleum Reserve No. 1 (NPR-1) power source to the WKWD Station A, is to significantly reduce NPR-1`s overall utility costs. While the proposed action is independently justified on its own merits and is not tied to the proposed NPR-1 Cogeneration Facility, the proposed action would enable DOE to tie the NPR-1 fresh water pumps at Station A into the existing NPR-1 electrical distribution system. With the completion of the cogeneration facility in late 1994 or early 1995, the proposed action would save additional utility costs. This report deals with the environmental impacts of the construction of the powerline and the water pipeline. In addition, information is given about property rights and attaining permission to cross the property of proposed affected owners.

  3. Numerical investigation of recirculation in the UTSI MHD combustor

    SciTech Connect (OSTI)

    Schulz, R.J.; Lee, J.J.; Giel, T.V. Jr.

    1983-09-01T23:59:59.000Z

    Numerical studies were carried out to investigate the gross structure of flow in cylindrical combustors. The combustor configurations studied are variations of a working design used at the University of Tennessee Space Institute to burn pulverized coal at temperatures in excess of 3000K for generation of a plasma feeding a magnetohydrodynamic channel. The numerical studies were conducted for an isothermal fluid; the main objective of the calculations was to study the effect of the oxidant injection pattern on the gross structure of recirculating flows within the combustor. The calculations illustrate the basic features of the flow in combustors of this type and suggest implications for the injection of coal and oxidizer in this type of combustor.

  4. Numerical Estimation of Frictional Torques with Rate and State Friction

    E-Print Network [OSTI]

    Arun K. Singh; T. N. Singh

    2015-01-20T23:59:59.000Z

    In this paper, numerical estimation of frictional torques is carried out of a rotary elastic disc on a hard and rough surface under different rotating conditions. A one dimensional spring- mass rotary system is numerically solved under the quasistatic condition with the rate and state dependent friction model. It is established that torque of frictional strength as well as torque of steady dynamic stress increases with radius and found to be maximum at the periphery of the disc. Torque corresponding to frictional strength estimated using the analytical solution matches closely with the simulation only in the case of high stiffness of the connecting spring. In steady relaxation simulation, a steadily rotating disc is suddenly stopped and relaxational angular velocity and corresponding frictional torque decreases with both steady angular velocity and stiffness of the connecting spring in the velocity strengthening regime. In velocity weakening regime, in contrast, torque of relaxation stress deceases but relaxation velocity increases. The reason for the contradiction is explained.

  5. Regularization of spherical and axisymmetric evolution codes in numerical relativity

    E-Print Network [OSTI]

    Milton Ruiz; Miguel Alcubierre; Dario Nunez

    2007-09-11T23:59:59.000Z

    Several interesting astrophysical phenomena are symmetric with respect to the rotation axis, like the head-on collision of compact bodies, the collapse and/or accretion of fields with a large variety of geometries, or some forms of gravitational waves. Most current numerical relativity codes, however, can not take advantage of these symmetries due to the fact that singularities in the adapted coordinates, either at the origin or at the axis of symmetry, rapidly cause the simulation to crash. Because of this regularity problem it has become common practice to use full-blown Cartesian three-dimensional codes to simulate axi-symmetric systems. In this work we follow a recent idea idea of Rinne and Stewart and present a simple procedure to regularize the equations both in spherical and axi-symmetric spaces. We explicitly show the regularity of the evolution equations, describe the corresponding numerical code, and present several examples clearly showing the regularity of our evolutions.

  6. Numerical Relativity as a tool for studying the Early Universe

    E-Print Network [OSTI]

    David Garrison

    2014-03-12T23:59:59.000Z

    Numerical simulations are becoming a more effective tool for conducting detailed investigations into the evolution of our universe. In this article, we show how the framework of numerical relativity can be used for studying cosmological models. The author is working to develop a large-scale simulation of the dynamical processes in the early universe. These take into account interactions of dark matter, scalar perturbations, gravitational waves, magnetic fields and a turbulent plasma. The code described in this report is a GRMHD code based on the Cactus framework and is structured to utilize one of several different differencing methods chosen at run-time. It is being developed and tested on the University of Houston's Maxwell cluster.

  7. Numerical Modeling of Charged Black Holes with Massive Dilaton

    E-Print Network [OSTI]

    T. L. Boyadjiev; P. P. Fiziev

    2003-11-28T23:59:59.000Z

    In this paper the static, spherically symmetric and electrically charged black hole solutions in Einstein-Born-Infeld gravity with massive dilaton are investigated numerically. The Continuous Analog of Newton Method (CANM) is used to solve the corresponding nonlinear multipoint boundary value problems (BVPs). The linearized BVPs are solved numerically by means of collocation scheme of fourth order. A special class of solutions are the extremal ones. We show that the extremal horizons within the framework of the model satisfy some nonlinear system of algebraic equations. Depending on the charge $q$ and dilaton mass $\\gamma$, the black holes can have no more than three horizons. This allows us to construct some Hermite polynomial of third order. Its real roots describe the number, the type and other characteristics of the horizons.

  8. Fractional Calculus in Hydrologic Modeling: A Numerical Perspective

    SciTech Connect (OSTI)

    David A. Benson; Mark M. Meerschaert; Jordan Revielle

    2012-01-01T23:59:59.000Z

    Fractional derivatives can be viewed either as a handy extension of classical calculus or, more deeply, as mathematical operators defined by natural phenomena. This follows the view that the diffusion equation is defined as the governing equation of a Brownian motion. In this paper, we emphasize that fractional derivatives come from the governing equations of stable Levy motion, and that fractional integration is the corresponding inverse operator. Fractional integration, and its multi-dimensional extensions derived in this way, are intimately tied to fractional Brownian (and Levy) motions and noises. By following these general principles, we discuss the Eulerian and Lagrangian numerical solutions to fractional partial differential equations, and Eulerian methods for stochastic integrals. These numerical approximations illuminate the essential nature of the fractional calculus.

  9. Accurate complex scaling of three dimensional numerical potentials

    SciTech Connect (OSTI)

    Cerioni, Alessandro [European Synchrotron Radiation Facility, 6 rue Horowitz, BP220 38043 Grenoble Cedex 9 (France); Genovese, Luigi; Duchemin, Ivan; Deutsch, Thierry [Laboratoire de simulation atomistique (L-Sim), SP2M, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble F-38054 (France)

    2013-05-28T23:59:59.000Z

    The complex scaling method, which consists in continuing spatial coordinates into the complex plane, is a well-established method that allows to compute resonant eigenfunctions of the time-independent Schroedinger operator. Whenever it is desirable to apply the complex scaling to investigate resonances in physical systems defined on numerical discrete grids, the most direct approach relies on the application of a similarity transformation to the original, unscaled Hamiltonian. We show that such an approach can be conveniently implemented in the Daubechies wavelet basis set, featuring a very promising level of generality, high accuracy, and no need for artificial convergence parameters. Complex scaling of three dimensional numerical potentials can be efficiently and accurately performed. By carrying out an illustrative resonant state computation in the case of a one-dimensional model potential, we then show that our wavelet-based approach may disclose new exciting opportunities in the field of computational non-Hermitian quantum mechanics.

  10. Hyperboloidal Slices and Artificial Cosmology for Numerical Relativity

    E-Print Network [OSTI]

    Charles W. Misner

    2006-03-11T23:59:59.000Z

    This preliminary report proposes integrating the Maxwell equations in Minkowski spacetime using coordinates where the spacelike surfaces are hyperboloids asymptotic to null cones at spatial infinity. The space coordinates are chosen so that Scri+ occurs at a finite coordinate and a smooth extension beyond Scri+ is obtained. The question addressed is whether a Cauchy evolution numerical integration program can be easily modified to compute this evolution. In the spirit of the von Neumann and Richtmyer artificial viscosity which thickens a shock by many orders of magnitude to facilitate numerical simulation, I propose artificial cosmology to thicken null infinity Scri+ to approximate it by a de Sitter cosmological horizon where, in conformally compactified presentation, it provides a shell of purely outgoing null cones where asymptotic waves can be read off as data on a spacelike pure outflow outer boundary. This should be simpler than finding Scri+ as an isolated null boundary or imposing outgoing wave conditions at a timelike boundary at finite radius.

  11. Non-Gaussian numerical errors versus mass hierarchy

    E-Print Network [OSTI]

    Y. Meurice; M. B. Oktay

    2000-05-12T23:59:59.000Z

    We probe the numerical errors made in renormalization group calculations by varying slightly the rescaling factor of the fields and rescaling back in order to get the same (if there were no round-off errors) zero momentum 2-point function (magnetic susceptibility). The actual calculations were performed with Dyson's hierarchical model and a simplified version of it. We compare the distributions of numerical values obtained from a large sample of rescaling factors with the (Gaussian by design) distribution of a random number generator and find significant departures from the Gaussian behavior. In addition, the average value differ (robustly) from the exact answer by a quantity which is of the same order as the standard deviation. We provide a simple model in which the errors made at shorter distance have a larger weight than those made at larger distance. This model explains in part the non-Gaussian features and why the central-limit theorem does not apply.

  12. On numerical considerations for modeling reactive astrophysical shocks

    SciTech Connect (OSTI)

    Papatheodore, Thomas L.; Messer, O. E. Bronson, E-mail: tpapathe@utk.edu, E-mail: bronson@ornl.gov [Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996 (United States)

    2014-02-10T23:59:59.000Z

    Simulating detonations in astrophysical environments is often complicated by numerical approximations to shock structure. A common prescription to ensure correct detonation speeds and associated quantities is to prohibit burning inside the numerically broadened shock. We have performed a series of simulations to verify the efficacy of this approximation and to understand how resolution and dimensionality might affect its use. Our results show that in one dimension, prohibiting burning in the shock is important wherever the carbon burning length is not resolved, in keeping with the results of Fryxell et al. In two dimensions, we find that the prohibition of shock burning effectively inhibits the development of cellular structure for all but the most highly resolved cases. We discuss the possible impacts this outcome may have on sub-grid models and detonation propagation in models of Type Ia supernovae, including potential impacts on observables.

  13. Refined numerical models for multidimensional Type Ia supernova simulations

    E-Print Network [OSTI]

    Reinecke, M; Niemeyer, J C

    2002-01-01T23:59:59.000Z

    Following up on earlier work on this topic (Reinecke et al. 1999, A&A 347, pp. 724 and 739), we present an improved set of numerical models for simulations of white dwarfs exploding as Type Ia supernovae (SNe Ia). Two-dimensional simulations were used to test the reliability and numerical robustness of these algorithms; the results indicate that integral quantities like the total energy release are insensitive to changes of the grid resolution (above a certain threshold), which was not the case for our former code. The models were further enhanced to allow fully three-dimensional simulations of SNe Ia. A direct comparison of a 2D and a 3D calculation with identical initial conditions shows that the explosion is considerably more energetic in three dimensions; this is most likely caused by the assumption of axisymmetry in 2D, which inhibits the growth of flame instabilities in the azimuthal direction and thereby decreases the flame surface.

  14. Refined numerical models for multidimensional Type Ia supernova simulations

    E-Print Network [OSTI]

    M. Reinecke; W. Hillebrandt; J. C. Niemeyer

    2001-11-26T23:59:59.000Z

    Following up on earlier work on this topic (Reinecke et al. 1999, A&A 347, pp. 724 and 739), we present an improved set of numerical models for simulations of white dwarfs exploding as Type Ia supernovae (SNe Ia). Two-dimensional simulations were used to test the reliability and numerical robustness of these algorithms; the results indicate that integral quantities like the total energy release are insensitive to changes of the grid resolution (above a certain threshold), which was not the case for our former code. The models were further enhanced to allow fully three-dimensional simulations of SNe Ia. A direct comparison of a 2D and a 3D calculation with identical initial conditions shows that the explosion is considerably more energetic in three dimensions; this is most likely caused by the assumption of axisymmetry in 2D, which inhibits the growth of flame instabilities in the azimuthal direction and thereby decreases the flame surface.

  15. Numerical solution of plasma fluid equations using locally refined grids

    SciTech Connect (OSTI)

    Colella, P., LLNL

    1997-01-26T23:59:59.000Z

    This paper describes a numerical method for the solution of plasma fluid equations on block-structured, locally refined grids. The plasma under consideration is typical of those used for the processing of semiconductors. The governing equations consist of a drift-diffusion model of the electrons and an isothermal model of the ions coupled by Poisson's equation. A discretization of the equations is given for a uniform spatial grid, and a time-split integration scheme is developed. The algorithm is then extended to accommodate locally refined grids. This extension involves the advancement of the discrete system on a hierarchy of levels, each of which represents a degree of refinement, together with synchronization steps to ensure consistency across levels. A brief discussion of a software implementation is followed by a presentation of numerical results.

  16. Numerical analysis of nanostructures for enhanced light extraction from OLEDs

    E-Print Network [OSTI]

    Zschiedrich, L; Burger, S; Schmidt, F; 10.1117/12.2001132

    2013-01-01T23:59:59.000Z

    Nanostructures, like periodic arrays of scatters or low-index gratings, are used to improve the light outcoupling from organic light-emitting diodes (OLED). In order to optimize geometrical and material properties of such structures, simulations of the outcoupling process are very helpful. The finite element method is best suited for an accurate discretization of the geometry and the singular-like field profile within the structured layer and the emitting layer. However, a finite element simulation of the overall OLED stack is often beyond available computer resources. The main focus of this paper is the simulation of a single dipole source embedded into a twofold infinitely periodic OLED structure. To overcome the numerical burden we apply the Floquet transform, so that the computational domain reduces to the unit cell. The relevant outcoupling data are then gained by inverse Flouqet transforming. This step requires a careful numerical treatment as reported in this paper.

  17. On Numerical Considerations for Modeling Reactive Astrophysical Shocks

    SciTech Connect (OSTI)

    Papatheodore, Thomas L [ORNL] [ORNL; Messer, Bronson [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Simulating detonations in astrophysical environments is often complicated by numerical approximations to shock structure. A common prescription to ensure correct detonation speeds (and associated quantities) is to prohibit burning inside the numerically broadened shock (Fryxell et al. 1989). We have performed a series of simulations to verify the efficacy of this approximation and to understand how resolution and dimensionality might affect its use. Our results show that, in one dimension, prohibiting burning in the shock is important wherever the carbon burning length is not resolved, in keeping with the results of Fryxell et al. (1989). In two dimensions, we find that the prohibition of shock burning effectively inhibits the development of cellular structure for all but the most highly-resolved cases. We discuss the possible impacts this outcome may have on sub-grid models and detonation propagation in Type Ia supernovae.

  18. Numerical method for shear bands in ductile metal with inclusions

    SciTech Connect (OSTI)

    Plohr, Jee Yeon N [Los Alamos National Laboratory; Plohr, Bradley J [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    A numerical method for mesoscale simulation of high strain-rate loading of ductile metal containing inclusions is described. Because of small-scale inhomogeneities, such a composite material is prone to localized shear deformation (adiabatic shear bands). The modeling framework is the Generalized Method of Cells of Paley and Aboudi [Mech. Materials, vol. 14, pp. /27-139, 1992], which ensures that the micromechanical response of the material is reflected in the behavior of the composite at the mesoscale. To calculate the effective plastic strain rate when shear bands are present, the analytic and numerical analysis of shear bands by Glimm, Plohr, and Sharp [Mech. Materials, vol. 24, pp. 31-41, 1996] is adapted and extended.

  19. Noncommutative Field Theory: Numerical Analysis with the Fuzzy Disc

    E-Print Network [OSTI]

    Fedele Lizzi; Bernardino Spisso

    2012-07-28T23:59:59.000Z

    The fuzzy disc is a discretization of the algebra of functions on the two dimensional disc using finite matrices which preserves the action of the rotation group. We define a $\\varphi^4$ scalar field theory on it and analyze numerically for three different limits for the rank of the matrix going to infinity. The numerical simulations reveal three different phases: uniform and disordered phases already the present in the commutative scalar field theory and a nonuniform ordered phase as a noncommutative effects. We have computed the transition curves between phases and their scaling. This is in agreement with studies on the fuzzy sphere, although the speed of convergence for the disc seems to be better. We have performed also three the limits for the theory in the cases of the theory going to the commutative plane or commutative disc. In this case the theory behaves differently, showing the intimate relationship between the nonuniform phase and noncommutative geometry.

  20. A Generic Framework for Interprocedural Analysis of Numerical Properties

    E-Print Network [OSTI]

    Seidl, Helmut

    A Generic Framework for Interprocedural Analysis of Numerical Properties Markus MË?uller­Olm 1, Germany markus.mueller­olm@cs.uni­dortmund.de 2 TU MË?unchen, Institut fË?ur Informatik, I2 80333 M of the abstracted collecting semantics is also used by MË?uller­Olm and Seidl in [12] where (in absence of equality

  1. Numerical analysis of a microwave torch with axial gas injection

    SciTech Connect (OSTI)

    Gritsinin, S. I.; Davydov, A. M.; Kossyi, I. A., E-mail: kossyi@fpl.gpi.ru [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation); Kulumbaev, E. B. [National Research University Belgorod State University (Russian Federation)] [National Research University Belgorod State University (Russian Federation); Lelevkin, V. M. [Kyrgyz-Russian Slavic University (Kyrgyzstan)] [Kyrgyz-Russian Slavic University (Kyrgyzstan)

    2013-07-15T23:59:59.000Z

    The characteristics of a microwave discharge in an argon jet injected axially into a coaxial channel with a shortened inner electrode are numerically analyzed using a self-consistent equilibrium gas-dynamic model. The specific features of the excitation and maintenance of the microwave discharge are determined, and the dependences of the discharge characteristics on the supplied electromagnetic power and gas flow rate are obtained. The calculated results are compared with experimental data.

  2. Comparative study of variational chaos indicators and ODEs' numerical integrators

    E-Print Network [OSTI]

    Luciano A. Darriba; Nicolás P. Maffione; Pablo M. Cincotta; Claudia M. Giordano

    2012-05-08T23:59:59.000Z

    The reader can find in the literature a lot of different techniques to study the dynamics of a given system and also, many suitable numerical integrators to compute them. Notwithstanding the recent work of Maffione et al. (2011a) for mappings, a detailed comparison among the widespread indicators of chaos in a general system is still lacking. Such a comparison could lead to select the most efficient algorithms given a certain dynamical problem. Furthermore, in order to choose the appropriate numerical integrators to compute them, more comparative studies among numerical integrators are also needed. This work deals with both problems. We first extend the work of Maffione et al. (2011) for mappings to the 2D H\\'enon & Heiles (1964) potential, and compare several variational indicators of chaos: the Lyapunov Indicator (LI); the Mean Exponential Growth Factor of Nearby Orbits (MEGNO); the Smaller Alignment Index (SALI) and its generalized version, the Generalized Alignment Index (GALI); the Fast Lyapunov Indicator (FLI) and its variant, the Orthogonal Fast Lyapunov Indicator (OFLI); the Spectral Distance (D) and the Dynamical Spectras of Stretching Numbers (SSNs). We also include in the record the Relative Lyapunov Indicator (RLI), which is not a variational indicator as the others. Then, we test a numerical technique to integrate Ordinary Differential Equations (ODEs) based on the Taylor method implemented by Jorba & Zou (2005) (called taylor), and we compare its performance with other two well-known efficient integrators: the Prince & Dormand (1981) implementation of a Runge-Kutta of order 7-8 (DOPRI8) and a Bulirsch-St\\"oer implementation. These tests are run under two very different systems from the complexity of their equations point of view: a triaxial galactic potential model and a perturbed 3D quartic oscillator.

  3. Efficiency improvements for the numerical computation of NLO corrections

    E-Print Network [OSTI]

    Sebastian Becker; Christian Reuschle; Stefan Weinzierl

    2012-06-25T23:59:59.000Z

    In this paper we discuss techniques, which lead to a significant improvement of the efficiency of the Monte Carlo integration, when one-loop QCD amplitudes are calculated numerically with the help of the subtraction method and contour deformation. The techniques discussed are: holomorphic and non-holomorphic division into sub-channels, optimisation of the integration contour, improvement of the ultraviolet subtraction terms, importance sampling and antithetic variates in loop momentum space, recurrence relations.

  4. Numerical Verification of Bounce Harmonic Resonances in Neoclassical

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 Federal RegisterImplementation andNumerical

  5. Numerical Simulation of the Hydrodynamical Combustion to Strange Quark Matter

    E-Print Network [OSTI]

    Brian Niebergal; Rachid Ouyed; Prashanth Jaikumar

    2010-08-27T23:59:59.000Z

    We present results from a numerical solution to the burning of neutron matter inside a cold neutron star into stable (u,d,s) quark matter. Our method solves hydrodynamical flow equations in 1D with neutrino emission from weak equilibrating reactions, and strange quark diffusion across the burning front. We also include entropy change due to heat released in forming the stable quark phase. Our numerical results suggest burning front laminar speeds of 0.002-0.04 times the speed of light, much faster than previous estimates derived using only a reactive-diffusive description. Analytic solutions to hydrodynamical jump conditions with a temperature dependent equation of state agree very well with our numerical findings for fluid velocities. The most important effect of neutrino cooling is that the conversion front stalls at lower density (below approximately 2 times saturation density). In a 2-dimensional setting, such rapid speeds and neutrino cooling may allow for a flame wrinkle instability to develop, possibly leading to detonation.

  6. Notes on the integration of numerical relativity waveforms

    E-Print Network [OSTI]

    Christian Reisswig; Denis Pollney

    2011-09-22T23:59:59.000Z

    A primary goal of numerical relativity is to provide estimates of the wave strain, $h$, from strong gravitational wave sources, to be used in detector templates. The simulations, however, typically measure waves in terms of the Weyl curvature component, $\\psi_4$. Assuming Bondi gauge, transforming to the strain $h$ reduces to integration of $\\psi_4$ twice in time. Integrations performed in either the time or frequency domain, however, lead to secular non-linear drifts in the resulting strain $h$. These non-linear drifts are not explained by the two unknown integration constants which can at most result in linear drifts. We identify a number of fundamental difficulties which can arise from integrating finite length, discretely sampled and noisy data streams. These issues are an artifact of post-processing data. They are independent of the characteristics of the original simulation, such as gauge or numerical method used. We suggest, however, a simple procedure for integrating numerical waveforms in the frequency domain, which is effective at strongly reducing spurious secular non-linear drifts in the resulting strain.

  7. Transient productivity index for numerical well test simulations

    SciTech Connect (OSTI)

    Blanc, G.; Ding, D.Y.; Ene, A. [Institut Francais du Petrole, Pau (France)] [and others

    1997-08-01T23:59:59.000Z

    The most difficult aspect of numerical simulation of well tests is the treatment of the Bottom Hole Flowing (BHF) Pressure. In full field simulations, this pressure is derived from the Well-block Pressure (WBP) using a numerical productivity index which accounts for the grid size and permeability, and for the well completion. This productivity index is calculated assuming a pseudo-steady state flow regime in the vicinity of the well and is therefore constant during the well production period. Such a pseudo-steady state assumption is no longer valid for the early time of a well test simulation as long as the pressure perturbation has not reached several grid-blocks around the well. This paper offers two different solutions to this problem: (1) The first one is based on the derivation of a Numerical Transient Productivity Index (NTPI) to be applied to Cartesian grids; (2) The second one is based on the use of a Corrected Transmissibility and Accumulation Term (CTAT) in the flow equation. The representation of the pressure behavior given by both solutions is far more accurate than the conventional one as shown by several validation examples which are presented in the following pages.

  8. Numerical Methods of Computational Electromagnetics for Complex Inhomogeneous Systems

    SciTech Connect (OSTI)

    Cai, Wei

    2014-05-15T23:59:59.000Z

    Understanding electromagnetic phenomena is the key in many scientific investigation and engineering designs such as solar cell designs, studying biological ion channels for diseases, and creating clean fusion energies, among other things. The objectives of the project are to develop high order numerical methods to simulate evanescent electromagnetic waves occurring in plasmon solar cells and biological ion-channels, where local field enhancement within random media in the former and long range electrostatic interactions in the latter are of major challenges for accurate and efficient numerical computations. We have accomplished these objectives by developing high order numerical methods for solving Maxwell equations such as high order finite element basis for discontinuous Galerkin methods, well-conditioned Nedelec edge element method, divergence free finite element basis for MHD, and fast integral equation methods for layered media. These methods can be used to model the complex local field enhancement in plasmon solar cells. On the other hand, to treat long range electrostatic interaction in ion channels, we have developed image charge based method for a hybrid model in combining atomistic electrostatics and continuum Poisson-Boltzmann electrostatics. Such a hybrid model will speed up the molecular dynamics simulation of transport in biological ion-channels.

  9. Satellite Data Assimilation forSatellite Data Assimilation for Naval Undersea CapabilityNaval Undersea Capability

    E-Print Network [OSTI]

    Chu, Peter C.

    of satellite altimeters necessary to ensure maximum weapon effectiveness · To determine the point at which additional altimeter input no longer increases weapon effectiveness #12;Modular Ocean Data Assimilation for quantifying the effect on weapon presets #12;Environmental Fields · 2 MODAS data fields ­ one with assimilated

  10. The form, function, and interrelationships of naval rams: a study of naval rams from antiquity 

    E-Print Network [OSTI]

    Pridemore, Matthew Garnett

    1996-01-01T23:59:59.000Z

    . C. ). (Afier van Doorninck, 1982, fig. 7) . . . . . . . . . . . . . . . . . . . . . . . Fig. 4. Ship types depicted on Medmet Habu relief (c. 1200 B. C. ). (After Wachsmann, 1981, figs. 3 and 4...) . . . . . . . . . . . . :. .. . . . . . . . . . . . . . . . . . . 11 Fig. 5. Possible ramming scene (c. 760-735 B. C. ). (After Morrison and Wdliams, 1968, pl. 2B) . . . . . . 18 Fig. 6. Ship equipped with pomted ram (c. 760-735 B. C. ). (Afier Morrison and Williams, 1968, pL 1E...

  11. Stochastic algorithms for the analysis of numerical flame simulations

    SciTech Connect (OSTI)

    Bell, John B.; Day, Marcus S.; Grcar, Joseph F.; Lijewski, Michael J.

    2004-04-26T23:59:59.000Z

    Recent progress in simulation methodologies and high-performance parallel computers have made it is possible to perform detailed simulations of multidimensional reacting flow phenomena using comprehensive kinetics mechanisms. As simulations become larger and more complex, it becomes increasingly difficult to extract useful information from the numerical solution, particularly regarding the interactions of the chemical reaction and diffusion processes. In this paper we present a new diagnostic tool for analysis of numerical simulations of reacting flow. Our approach is based on recasting an Eulerian flow solution in a Lagrangian frame. Unlike a conventional Lagrangian view point that follows the evolution of a volume of the fluid, we instead follow specific chemical elements, e.g., carbon, nitrogen, etc., as they move through the system . From this perspective an ''atom'' is part of some molecule of a species that is transported through the domain by advection and diffusion. Reactions cause the atom to shift from one chemical host species to another and the subsequent transport of the atom is given by the movement of the new species. We represent these processes using a stochastic particle formulation that treats advection deterministically and models diffusion and chemistry as stochastic processes. In this paper, we discuss the numerical issues in detail and demonstrate that an ensemble of stochastic trajectories can accurately capture key features of the continuum solution. The capabilities of this diagnostic are then demonstrated by applications to study the modulation of carbon chemistry during a vortex-flame interaction, and the role of cyano chemistry in rm NO{sub x} production for a steady diffusion flame.

  12. Numerical studies of the stochastic Korteweg-de Vries equation

    SciTech Connect (OSTI)

    Lin Guang [Division of Applied Mathematics, Brown University, 182 George Street, Box F, Providence, RI 02912 (United States); Grinberg, Leopold [Division of Applied Mathematics, Brown University, 182 George Street, Box F, Providence, RI 02912 (United States); Karniadakis, George Em [Division of Applied Mathematics, Brown University, 182 George Street, Box F, Providence, RI 02912 (United States)]. E-mail: gk@dam.brown.edu

    2006-04-10T23:59:59.000Z

    We present numerical solutions of the stochastic Korteweg-de Vries equation for three cases corresponding to additive time-dependent noise, multiplicative space-dependent noise and a combination of the two. We employ polynomial chaos for discretization in random space, and discontinuous Galerkin and finite difference for discretization in physical space. The accuracy of the stochastic solutions is investigated by comparing the first two moments against analytical and Monte Carlo simulation results. Of particular interest is the interplay of spatial discretization error with the stochastic approximation error, which is examined for different orders of spatial and stochastic approximation.

  13. Direct numerical integration for multi-loop integrals

    E-Print Network [OSTI]

    Sebastian Becker; Stefan Weinzierl

    2013-03-18T23:59:59.000Z

    We present a method to construct a suitable contour deformation in loop momentum space for multi-loop integrals. This contour deformation can be used to perform the integration for multi-loop integrals numerically. The integration can be performed directly in loop momentum space without the introduction of Feynman or Schwinger parameters. The method can be applied to finite multi-loop integrals and to divergent multi-loop integrals with suitable subtraction terms. The algorithm extends techniques from the one-loop case to the multi-loop case. Examples at two and three loops are discussed explicitly.

  14. Connecting Numerical Relativity and Data Analysis of Gravitational Wave Detectors

    E-Print Network [OSTI]

    Shoemaker, Deirdre; London, Lionel; Pekowsky, Larne

    2015-01-01T23:59:59.000Z

    Gravitational waves deliver information in exquisite detail about astrophysical phenomena, among them the collision of two black holes, a system completely invisible to the eyes of electromagnetic telescopes. Models that predict gravitational wave signals from likely sources are crucial for the success of this endeavor. Modeling binary black hole sources of gravitational radiation requires solving the Eintein equations of General Relativity using powerful computer hardware and sophisticated numerical algorithms. This proceeding presents where we are in understanding ground-based gravitational waves resulting from the merger of black holes and the implications of these sources for the advent of gravitational-wave astronomy.

  15. Diffusive mesh relaxation in ALE finite element numerical simulations

    SciTech Connect (OSTI)

    Dube, E.I.

    1996-06-01T23:59:59.000Z

    The theory for a diffusive mesh relaxation algorithm is developed for use in three-dimensional Arbitary Lagrange/Eulerian (ALE) finite element simulation techniques. This mesh relaxer is derived by a variational principle for an unstructured 3D grid using finite elements, and incorporates hourglass controls in the numerical implementation. The diffusive coefficients are based on the geometric properties of the existing mesh, and are chosen so as to allow for a smooth grid that retains the general shape of the original mesh. The diffusive mesh relaxation algorithm is then applied to an ALE code system, and results from several test cases are discussed.

  16. Numerical investigation of closed-loop control for Hall accelerators

    SciTech Connect (OSTI)

    Barral, S.; Miedzik, J. [Institute of Plasma Physics and Laser Microfusion, 01497 Warsaw (Poland)

    2011-01-01T23:59:59.000Z

    Low frequency discharge current oscillations in Hall accelerators are conventionally damped with external inductor-capacitor (LC) or resistor-inductor-capacitor (RLC) networks. The role of such network in the stabilization of the plasma discharge is investigated with a numerical model and the potential advantages of proportional-integral-derivative (PID) closed-loop control over RLC networks are subsequently assessed using either discharge voltage or magnetic field modulation. Simulations confirm the reduction of current oscillations in the presence of a RLC network, but suggest that PID control could ensure nearly oscillation-free operation with little sensitivity toward the PID settings.

  17. ASSIMILATION OF DOPPLER RADAR DATA INTO NUMERICAL WEATHER MODELS

    SciTech Connect (OSTI)

    Chiswell, S.; Buckley, R.

    2009-01-15T23:59:59.000Z

    During the year 2008, the United States National Weather Service (NWS) completed an eight fold increase in sampling capability for weather radars to 250 m resolution. This increase is expected to improve warning lead times by detecting small scale features sooner with increased reliability; however, current NWS operational model domains utilize grid spacing an order of magnitude larger than the radar data resolution, and therefore the added resolution of radar data is not fully exploited. The assimilation of radar reflectivity and velocity data into high resolution numerical weather model forecasts where grid spacing is comparable to the radar data resolution was investigated under a Laboratory Directed Research and Development (LDRD) 'quick hit' grant to determine the impact of improved data resolution on model predictions with specific initial proof of concept application to daily Savannah River Site operations and emergency response. Development of software to process NWS radar reflectivity and radial velocity data was undertaken for assimilation of observations into numerical models. Data values within the radar data volume undergo automated quality control (QC) analysis routines developed in support of this project to eliminate empty/missing data points, decrease anomalous propagation values, and determine error thresholds by utilizing the calculated variances among data values. The Weather Research and Forecasting model (WRF) three dimensional variational data assimilation package (WRF-3DVAR) was used to incorporate the QC'ed radar data into input and boundary conditions. The lack of observational data in the vicinity of SRS available to NWS operational models signifies an important data void where radar observations can provide significant input. These observations greatly enhance the knowledge of storm structures and the environmental conditions which influence their development. As the increase in computational power and availability has made higher resolution real-time model simulations possible, the need to obtain observations to both initialize numerical models and verify their output has become increasingly important. The assimilation of high resolution radar observations therefore provides a vital component in the development and utility of numerical model forecasts for both weather forecasting and contaminant transport, including future opportunities to improve wet deposition computations explicitly.

  18. Numerical analysis of decoy state quantum key distribution protocols

    SciTech Connect (OSTI)

    Harrington, Jim W [Los Alamos National Laboratory; Rice, Patrick R [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Decoy state protocols are a useful tool for many quantum key distribution systems implemented with weak coherent pulses, allowing significantly better secret bit rates and longer maximum distances. In this paper we present a method to numerically find optimal three-level protocols, and we examine how the secret bit rate and the optimized parameters are dependent on various system properties, such as session length, transmission loss, and visibility. Additionally, we show how to modify the decoy state analysis to handle partially distinguishable decoy states as well as uncertainty in the prepared intensities.

  19. Numerical solution of the linear least squares problem for splines

    E-Print Network [OSTI]

    Vonderhaar, Thomas Jerome

    1975-01-01T23:59:59.000Z

    ) Ci?. . &: , i ~ '(8'??. (Member) (Member) May 1975 ABSTRACT Numerical Solution of the Linear Least Squares Problem for Splines. (May 1975) Thomas Jerome Vonderhaar B. A. , Lewis University Chairman of Advisory Committee: Dr. Philip W. Smith... in the preparation of this thesis. I would also like to thank Dr. C. K. Chui and Dr. R. D. Larsen for serving on my committee. My sincere gratitude goes to Myra McWatt for her understanding and moral support during the completion of this paper. TABLE OF CONTENTS...

  20. Sandia Energy - Numerical Manufacturing And Design Tool (NuMAD)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution Grid Integration PermalinkClimateNumerical Manufacturing And

  1. Property:Iso3166Numeric | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid JumpEligSysSize JumpTechDsc JumpAlpha3 Jump to:Numeric

  2. THE NUMERICAL APPROXIMATION FOR THE INTEGRABILITY PROBLEM AND THE MEASURE OF WELFARE CHANGES, AND ITS APPLICATIONS

    E-Print Network [OSTI]

    Lim, Sung Jin

    2012-01-01T23:59:59.000Z

    This dissertation mainly studied on numerical approximation methods as a solution of the integrability problem and the measure of welfare changes, and demonstrated how numerical algorithms can be applied in empirical studies ...

  3. Evaluation of numerical weather prediction for intra-day solar forecasting in the continental United States

    E-Print Network [OSTI]

    Mathiesen, Patrick; Kleissl, Jan

    2011-01-01T23:59:59.000Z

    transport and  numerical weather modeling.   J.  Applied cross correlations.    Weather and Forecasting, 8:4, 401?of radiation for numerical weather prediction and climate 

  4. NUMERICAL ANALYSIS OF A FINITE ELEMENT SCHEME FOR THE APPROXIMATION OF HARMONIC MAPS INTO SURFACES

    E-Print Network [OSTI]

    Bartels, Soeren

    NUMERICAL ANALYSIS OF A FINITE ELEMENT SCHEME FOR THE APPROXIMATION OF HARMONIC MAPS INTO SURFACES Geometric partial differential equations and their analysis as well as numerical simulation have recently

  5. Radiative feedback and cosmic molecular gas: numerical method

    E-Print Network [OSTI]

    Margarita Petkova; Umberto Maio

    2012-02-27T23:59:59.000Z

    We present results from self-consistent 3D numerical simulations of cosmic structure formation with a multi-frequency radiative transfer scheme and non-equilibrium molecular chemistry of 13 primordial species (e-, H, H+, H-, He, He+, He++, H2, H2+, D, D+, HD, HeH+), performed by using the simulation code GADGET. We describe our implementation and show tests for ionized sphere expansion in a static and dynamic density field around a central radiative source, and for cosmological abundance evolution coupled with the cosmic microwave background radiation. As a demonstrative application of radiative feedback on molecular gas, we run also cosmological simulations of early structure formation in a ~1Mpc size box. Our tests agree well with analytical and numerical expectations. Consistently with other works, we find that ionization fronts from central sources can boost H2 fractions in shock-compressed gas. The tight dependence on H2 lead to a corresponding boost of HD fractions, as well. We see a strong lowering of the the typical molecular abundances up to several orders of magnitudes which partially hinders further gas collapse of pristine neutral gas, and clearly suggests the need of re-ionized gas or metal cooling for the formation of the following generation of structures.

  6. Numerical and experimental investigation of vortical flow-flame interaction

    SciTech Connect (OSTI)

    Najm, H.N.; Schefer, R.W.; Milne, R.B.; Mueller, C.J. [Sandia National Labs., Livermore, CA (United States); Devine, K.D.; Kempka, S.N. [Sandia National Labs., Albuquerque, NM (United States)

    1998-02-01T23:59:59.000Z

    A massively parallel coupled Eulerian-Lagrangian low Mach number reacting flow code is developed and used to study the structure and dynamics of a forced planar buoyant jet flame in two dimensions. The numerical construction uses a finite difference scheme with adaptive mesh refinement for solving the scalar conservation equations, and the vortex method for the momentum equations, with the necessary coupling terms. The numerical model construction is presented, along with computational issues regarding the parallel implementation. An experimental acoustically forced planar jet burner apparatus is also developed and used to study the velocity and scalar fields in this flow, and to provide useful data for validation of the computed jet. Burner design and laser diagnostic details are discussed, along with the measured laboratory jet flame dynamics. The computed reacting jet flow is also presented, with focus on both large-scale outer buoyant structures and the lifted flame stabilization dynamics. A triple flame structure is observed at the flame base in the computed flow, as is theoretically expected, but was not observable with present diagnostic techniques in the laboratory flame. Computed and experimental results are compared, along with implications for model improvements.

  7. Numerical Model for Conduction-Cooled Current Lead Heat Loads

    SciTech Connect (OSTI)

    White, M.J.; Wang, X.L.; /Fermilab; Brueck, H.D.; /DESY

    2011-06-10T23:59:59.000Z

    Current leads are utilized to deliver electrical power from a room temperature junction mounted on the vacuum vessel to a superconducting magnet located within the vacuum space of a cryostat. There are many types of current leads used at laboratories throughout the world; however, conduction-cooled current leads are often chosen for their simplicity and reliability. Conduction-cooled leads have the advantage of using common materials, have no superconducting/normal state transition, and have no boil-off vapor to collect. This paper presents a numerical model for conduction-cooled current lead heat loads. This model takes into account varying material and fluid thermal properties, varying thicknesses along the length of the lead, heat transfer in the circumferential and longitudinal directions, electrical power dissipation, and the effect of thermal intercepts. The model is validated by comparing the numerical model results to ideal cases where analytical equations are valid. In addition, the XFEL (X-Ray Free Electron Laser) prototype current leads are modeled and compared to the experimental results from testing at DESY's XFEL Magnet Test Stand (XMTS) and Cryomodule Test Bench (CMTB).

  8. MAGNETIZATION DEGREE OF GAMMA-RAY BURST FIREBALLS: NUMERICAL STUDY

    SciTech Connect (OSTI)

    Harrison, Richard; Kobayashi, Shiho, E-mail: R.M.Harrison@2006.ljmu.ac.uk [Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF (United Kingdom)

    2013-08-01T23:59:59.000Z

    The relative strength between forward and reverse shock emission in early gamma-ray burst (GRB) afterglow reflects that of magnetic energy densities in the two shock regions. We numerically show that with the current standard treatment, the fireball magnetization is underestimated by up to two orders of magnitude. This discrepancy is especially large in the sub-relativistic reverse shock regime (i.e., the thin shell and intermediate regime), where most optical flashes were detected. We provide new analytic estimates of the reverse shock emission based on a better shock approximation, which well describe numerical results in the intermediate regime. We show that the reverse shock temperature at the onset of afterglow is constant, ( {Gamma}-bar{sub d}-1){approx}8 Multiplication-Sign 10{sup -2}, when the dimensionless parameter {xi}{sub 0} is more than several. Our approach is applied to case studies of GRB 990123 and 090102, and we find that magnetic fields in the fireballs are even stronger than previously believed. However, these events are still likely to be due to a baryonic jet with {sigma} {approx} 10{sup -3} for GRB 990123 and {approx}3 Multiplication-Sign 10{sup -4} to 3 for GRB 090102.

  9. Theory comparison and numerical benchmarking on neoclassical toroidal viscosity torque

    SciTech Connect (OSTI)

    Wang, Zhirui; Park, Jong-Kyu; Logan, Nikolas; Kim, Kimin; Menard, Jonathan E. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Liu, Yueqiang [Euratom/CCFE Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)] [Euratom/CCFE Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)

    2014-04-15T23:59:59.000Z

    Systematic comparison and numerical benchmarking have been successfully carried out among three different approaches of neoclassical toroidal viscosity (NTV) theory and the corresponding codes: IPEC-PENT is developed based on the combined NTV theory but without geometric simplifications [Park et al., Phys. Rev. Lett. 102, 065002 (2009)]; MARS-Q includes smoothly connected NTV formula [Shaing et al., Nucl. Fusion 50, 025022 (2010)] based on Shaing's analytic formulation in various collisionality regimes; MARS-K, originally computing the drift kinetic energy, is upgraded to compute the NTV torque based on the equivalence between drift kinetic energy and NTV torque [J.-K. Park, Phys. Plasma 18, 110702 (2011)]. The derivation and numerical results both indicate that the imaginary part of drift kinetic energy computed by MARS-K is equivalent to the NTV torque in IPEC-PENT. In the benchmark of precession resonance between MARS-Q and MARS-K/IPEC-PENT, the agreement and correlation between the connected NTV formula and the combined NTV theory in different collisionality regimes are shown for the first time. Additionally, both IPEC-PENT and MARS-K indicate the importance of the bounce harmonic resonance which can greatly enhance the NTV torque when E×B drift frequency reaches the bounce resonance condition.

  10. Fast numerical treatment of nonlinear wave equations by spectral methods

    SciTech Connect (OSTI)

    Skjaeraasen, Olaf [ProsTek, Institute for Energy Technology, P.O. Box 40, N-2027 Kjeller (Norway); Robinson, P. A. [School of Physics, University of Sydney, New South Wales 2006 (Australia); Newman, D. L. [Center for Integrated Plasma Studies, University of Colorado at Boulder, Boulder, Colorado 80309 (United States)

    2011-02-15T23:59:59.000Z

    A method is presented that accelerates spectral methods for numerical solution of a broad class of nonlinear partial differential wave equations that are first order in time and that arise in plasma wave theory. The approach involves exact analytical treatment of the linear part of the wave evolution including growth and damping as well as dispersion. After introducing the method for general scalar and vector equations, we discuss and illustrate it in more detail in the context of the coupling of high- and low-frequency plasma wave modes, as modeled by the electrostatic and electromagnetic Zakharov equations in multiple dimensions. For computational efficiency, the method uses eigenvector decomposition, which is particularly advantageous when the wave damping is mode-dependent and anisotropic in wavenumber space. In this context, it is shown that the method can significantly speed up numerical integration relative to standard spectral or finite difference methods by allowing much longer time steps, especially in the limit in which the nonlinear Schroedinger equation applies.

  11. Numerical treatment of interfaces for second-order wave equations

    E-Print Network [OSTI]

    F. Parisi; M. Cécere; M. Iriondo; O. Reula

    2014-06-12T23:59:59.000Z

    In this article we develop a numerical scheme to deal with interfaces between touching numerical grids when solving the second-order wave equation. We show that it is possible to implement an interface scheme of "penalty" type for the second-order wave equation, similar to the ones used for first-order hyperbolic and parabolic equations, and the second-order scheme used by Mattsson et al (2008). These schemes, known as SAT schemes for finite difference approximations and penalties for spectral ones, and ours share similar properties but in our case one needs to pass at the interface a smaller amount of data than previously known schemes. This is important for multi-block parallelizations in several dimensions, for it implies that one obtains the same solution quality while sharing among different computational grids only a fraction of the data one would need for a comparable (in accuracy) SAT or Mattsson et al.'s scheme. The semi-discrete approximation used here preserves the norm and uses standard finite-difference operators satisfying summation by parts. For the time integrator we use a semi-implicit IMEX Runge-Kutta method. This is crucial, since the explicit Runge-Kutta method would be impractical given the severe restrictions that arise from the stiff parts of the equations.

  12. Comparing Post-Newtonian and Numerical-Relativity Precession Dynamics

    E-Print Network [OSTI]

    Ossokine, Serguei; Kidder, Lawrence E; Pfeiffer, Harald P; Scheel, Mark A; Szilágyi, Béla

    2015-01-01T23:59:59.000Z

    Binary black-hole systems are expected to be important sources of gravitational waves for upcoming gravitational-wave detectors. If the spins are not colinear with each other or with the orbital angular momentum, these systems exhibit complicated precession dynamics that are imprinted on the gravitational waveform. We develop a new procedure to match the precession dynamics computed by post-Newtonian (PN) theory to those of numerical binary black-hole simulations in full general relativity. For numerical relativity NR) simulations lasting approximately two precession cycles, we find that the PN and NR predictions for the directions of the orbital angular momentum and the spins agree to better than $\\sim 1^{\\circ}$ with NR during the inspiral, increasing to $5^{\\circ}$ near merger. Nutation of the orbital plane on the orbital time-scale agrees well between NR and PN, whereas nutation of the spin direction shows qualitatively different behavior in PN and NR. We also examine how the PN equations for precession a...

  13. Comparing Post-Newtonian and Numerical-Relativity Precession Dynamics

    E-Print Network [OSTI]

    Serguei Ossokine; Michael Boyle; Lawrence E. Kidder; Harald P. Pfeiffer; Mark A. Scheel; Béla Szilágyi

    2015-02-05T23:59:59.000Z

    Binary black-hole systems are expected to be important sources of gravitational waves for upcoming gravitational-wave detectors. If the spins are not colinear with each other or with the orbital angular momentum, these systems exhibit complicated precession dynamics that are imprinted on the gravitational waveform. We develop a new procedure to match the precession dynamics computed by post-Newtonian (PN) theory to those of numerical binary black-hole simulations in full general relativity. For numerical relativity NR) simulations lasting approximately two precession cycles, we find that the PN and NR predictions for the directions of the orbital angular momentum and the spins agree to better than $\\sim 1^{\\circ}$ with NR during the inspiral, increasing to $5^{\\circ}$ near merger. Nutation of the orbital plane on the orbital time-scale agrees well between NR and PN, whereas nutation of the spin direction shows qualitatively different behavior in PN and NR. We also examine how the PN equations for precession and orbital-phase evolution converge with PN order, and we quantify the impact of various choices for handling partially known PN terms.

  14. Fracture Density Estimation Using Spectral Analysis of Reservoir Reflections: A Numerical Modeling Approach

    E-Print Network [OSTI]

    Pearce, Fred

    2003-01-01T23:59:59.000Z

    We use a 3-D finite difference numerical model to generate synthetic seismograms from a simple fractured reservoir

  15. THESIS FOR THE DEGREE OF LICENTIATE OF ENGINEERING Numerical Folding of Airbags

    E-Print Network [OSTI]

    Patriksson, Michael

    THESIS FOR THE DEGREE OF LICENTIATE OF ENGINEERING Numerical Folding of Airbags Based of Technology and G¨oteborg University G¨oteborg, Sweden 2007 #12;Numerical Folding of Airbags Based¨oteborg, Sweden 2007 #12;Numerical Folding of Airbags Based on Optimization and Origami Christoffer Cromvik

  16. Numerical study of high heat ux pool boiling heat transfer Ying He a,*, Masahiro Shoji b

    E-Print Network [OSTI]

    Maruyama, Shigeo

    Numerical study of high heat ¯ux pool boiling heat transfer Ying He a,*, Masahiro Shoji b , Shigeo simulation model of boiling heat transfer is proposed based on a numerical macrolayer model [S. Maruyama, M. Shoji, S. Shimizu, A numerical simulation of transition boiling heat transfer, in: Proceedings

  17. Numerical Methods for the Bogoliubov-Tolmachev-Shirkov model in superconductivity theory

    E-Print Network [OSTI]

    Zhihao Ge; Ruihua Li

    2014-12-25T23:59:59.000Z

    In the work, the numerical methods are designed for the Bogoliubov-Tolmachev-Shirkov model in superconductivity theory. The numerical methods are novel and effective to determine the critical transition temperature and approximate to the energy gap function of the above model. Finally, a numerical example confirming the theoretical results is presented.

  18. Numerical Methods for the Bogoliubov-Tolmachev-Shirkov model in superconductivity theory

    E-Print Network [OSTI]

    Zhihao Ge; Ruihua Li

    2015-03-08T23:59:59.000Z

    In the work, the numerical methods are designed for the Bogoliubov-Tolmachev-Shirkov model in superconductivity theory. The numerical methods are novel and effective to determine the critical transition temperature and approximate to the energy gap function of the above model. Finally, a numerical example confirming the theoretical results is presented.

  19. NUMERICAL SOLUTION OF HYBRID OPTIMAL CONTROL PROBLEMS WITH APPLICATIONS IN ROBOTICS

    E-Print Network [OSTI]

    Stryk, Oskar von

    NUMERICAL SOLUTION OF HYBRID OPTIMAL CONTROL PROBLEMS WITH APPLICATIONS IN ROBOTICS Martin Buss.g. (Buss et al., 2000; Buss, 2001; Tomlin, 1999). The key to numerically solving HOCPs appears to lie (Buss et al., 2000; Stryk and Glocker, 2000). This paper presents numerical solution techniques

  20. Unsteady propeller hydrodynamics by Dirk H. Renick.

    E-Print Network [OSTI]

    Renick, Dirk Hampton, 1970-

    2001-01-01T23:59:59.000Z

    One of the main problem affecting modern propulsor design engineers is the ability to quantitatively predict unsteady propeller forces for modern, multi-blade row, ducted propulsors operating in highly contracting flowfields. ...