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1

Seismic low-frequency effects in monitoring ?uid ...  

gravitational effects on ?uid distribution within the porous ... ported by the assistant Secretary for Fossil Energy, National Energy Technology ...

2

BEGIN VCALENDAR METHOD PUBLISH  

NLE Websites -- All DOE Office Websites (Extended Search)

BEGIN VCALENDAR BEGIN VCALENDAR METHOD PUBLISH PRODID aps anl gov NONSGML iCalcreator VERSION X WR TIMEZONE America Chicago BEGIN VEVENT UID T152245CST wfNso0 aps anl gov DTSTAMP T212245Z DESCRIPTION DTEND TZID America Chicago T130000 DTSTART TZID America Chicago T120000 LOCATION A1100 SUMMARY User Science Seminar resumes END VEVENT BEGIN VEVENT UID T152245CST bNeb1D aps anl gov DTSTAMP T212245Z DESCRIPTION DTEND TZID America Chicago T090000 DTSTART TZID America Chicago T080000 SUMMARY Run Begins END VEVENT BEGIN VEVENT UID T152245CST C7VJtG aps anl gov DTSTAMP T212245Z DESCRIPTION Anthony Cugini DOE NETL DTEND TZID America Chicago T120000 DTSTART TZID America Chicago T110000 LOCATION Y AUD SUMMARY Application of Computational Science for Fossil Fuel Conversion

3

Slow waves in fractures ?lled with viscous ?uid  

1 e x P1 2 z 1e kx P1 2 z eikxx, 15 1 1 B 1 e kx S1 2 z xe x 1 2 z eikx 16 insidethelayerand x 2 A 2e kx sign z 1 P2 2 eikx, 17 2 kB 2e x sign z 1 S2 2 eikxx 18 ...

4

Bachelor of Science in Nuclear Medicine Technology NAME:________________________________ OLD DOMINION UNIVERSITY UID___________________________________  

E-Print Network (OSTI)

Bachelor of Science in Nuclear Medicine Technology NAME:________________________________ OLD________________________________ Entrance Writing Sample Placement Test:_________________ LOWER DIVISION GENERAL EDUCATION Credits/Grade A____________________ Students must complete the following courses (or equivalent) prior to entering the nuclear medicine

5

Nuclear Maintenance Applications Center: Reactor Coolant Pump/Reactor Recirculation Pump Motor Lubrication Oil Systems Maintenance G uide  

Science Conference Proceedings (OSTI)

RCP and RRP Motor Lubrication system issues have ranked high on NMAC maintenance Issues Surveys in recent years. Problems reported have included oil leakage at power, the need for additional reservoirs to accommodate leakage, oil degradation (foaming, particulate) as well as sludge problems due to the design of the motor and some as a result of new oil formulations and other changes made by the oil suppliers. Reactor Coolant Pumps (RCP) used in Pressurized Water Reactors and Reactor Recirculation Pumps ...

2006-12-22T23:59:59.000Z

6

Computing the Seismic Attenuation in Complex Porous Materials  

E-Print Network (OSTI)

and dispersion of compressional waves in ?uid- ?lled porous rocks with partial gasand dispersion of compressional waves in ?uid- ?lled porous rocks with partial gas

Masson, Yder Jean

2010-01-01T23:59:59.000Z

7

Computing the Seismic Attenuation in Complex Porous Materials  

E-Print Network (OSTI)

attenuation peak is observed at lower frequencies due to oilor when oil is invading water, a single attenuation peak isusing oil as ?uid 1 and water as ?uid 2. The two peaks in

Masson, Yder Jean

2010-01-01T23:59:59.000Z

8

Cohomological Invariants of Algebraic Tori  

E-Print Network (OSTI)

High Porosity Silica Aerogels. ” J. Non-Crystalline SolidsW.P. Halperin. “Anisotropic Aerogels for Studying Super?uidCompressed Silica Aerogels for the Study of Super?uid 3

Blinstein, Semyon

2012-01-01T23:59:59.000Z

9

Modeling quasi-static poroelastic propagation using an asymptotic approach  

E-Print Network (OSTI)

model for multiphase ?ow through deformable fractured porousmultiphase ?uid ?ow, heat transfer, and deformation in fractured porous

Vasco, D.W.

2008-01-01T23:59:59.000Z

10

Understanding foams & foaming D.D. Joseph  

E-Print Network (OSTI)

; this property makes foam a good drilling uid for carrying away cuttings in underbalanced drilling. The foam ows

Joseph, Daniel D.

11

Reservoir monitoring and characterization using satellite geodetic data: Interferometric Synthetic Aperture Radar observations from the Krechba field, Algeria  

E-Print Network (OSTI)

production and oil-related subsidence: in Tison, L. J. , (Ed. ), Land subsidence, 1 , International Association ofand T. F. Yen, 1994, Subsidence due to ?uid withdrawal:

Vasco, D.W.

2008-01-01T23:59:59.000Z

12

Estimating permeability from quasi-static deformation: Temporal variations and arrival time inversion  

E-Print Network (OSTI)

production and oil-related subsidence: in Tison, L. J. , (Ed. ), Land subsidence, 1 , Internat. Assoc. Sci. Hydrologyand Yen, T. F. , 1994, Subsidence due to ?uid withdrawal:

Vasco, D.W.

2008-01-01T23:59:59.000Z

13

A hybrid fluid simulation on the Graphics Processing Unit (GPU).  

E-Print Network (OSTI)

??This thesis presents a method to implement a hybrid particle/grid uid simulation on graphics hardware. The goal is to speed up the simulation by exploiting… (more)

Flannery, Rebecca Lynn

2008-01-01T23:59:59.000Z

14

A comparison of grid-based techniques for Navier-Stokes fluid simulation in computer graphics  

E-Print Network (OSTI)

1. Fluid Simulation in Computer Graphics 2. PreviousB. Applications in Computer Graphics II The Navier Stokesstable ?uid dynamics for computer graphics. In SIGGRAPH

Chrisman, Cameron

2008-01-01T23:59:59.000Z

15

New results on the resistivity structure of Merapi Volcano (Indonesia), derived from 3D restricted inversion of long-offset transient electromagnetic data  

E-Print Network (OSTI)

B. E. , 1993. Electrical resistivities of crustal ?uids, J.G. E. , 1942. The electrical resistivity log as an aid inthe electrical structure, DC resistivity soundings on the

Commer, Michael; Helwig, Stefan, L.; Hordt, Andreas; Scholl, Carsten; Tezkan, Bulent

2006-01-01T23:59:59.000Z

16

Co-simulation for performance prediction of integrated building and HVAC systems - An analysis of solution characteristics using a two-body system  

E-Print Network (OSTI)

system related specic heat capacity heat transfer coecientC i is the overall heat capacity, K i U i A i , where U i isow, c p is the specic heat capacity of the working uid and g

Trcka, Marija

2010-01-01T23:59:59.000Z

17

Journal of Computational Acoustics, FREQUENCY DOMAIN WAVE PROPAGATION MODELLING  

E-Print Network (OSTI)

#11;ect de gas, brine or oil and gas-brine or gas-oil pore uids on seismic velocities. Numerical IN EXPLORATION SEISMOLOGY PATRICIA M. GAUZELLINO, JUAN E. SANTOS #3; Departamento de Geof#16;sica Aplicada

Sheen, Dongwoo

18

A Cartesian grid embedded boundary method for solving the Poisson and heat equations with discontinuous coefficients in three dimensions  

E-Print Network (OSTI)

A composite grid solver for conjugate heat transfer in ?uid-A Cartesian grid embedded boundary method for the heatA cartesian grid embedded boundary method for the heat

Crockett, Robert

2010-01-01T23:59:59.000Z

19

Author Proof MOLECULAR REPRODUCTION AND DEVELOPMENT 9999:18 (2001)  

E-Print Network (OSTI)

for fertilizing eggs (Austin, 1951; Chang, 1951). The physiological changes that confer on sperm the ability energy sources, and serum albumin. Seminal plasma is the ¯uid portion of semen in which spermatozoa

Zaragoza, Universidad de

20

Seismic stimulation for enhanced oil recovery  

E-Print Network (OSTI)

The plotted quantity is the speci?c oil volume that we de?nequantity ? int , which is the volume of ?uid that passes from pores initially occupied by oil

Pride, S.R.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vevent uid t145429cdt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

A Phase-Partitioning Model for CO2–Brine Mixtures at Elevated Temperatures and Pressures: Application to CO2-Enhanced Geothermal Systems  

E-Print Network (OSTI)

CO 2 content in produced ?uid, with water production endingafter 36.5 years, water content in produced CO 2 Applicationeffects on the water content of produced CO 2 . While

Spycher, Nicolas; Pruess, Karsten

2010-01-01T23:59:59.000Z

22

Blog Posts  

NLE Websites -- All DOE Office Websites (Extended Search)

5?&datefiltervalue&uid en Obama Administration drives release of car safety data, unveils new NHTSA SaferCar app for iOS http:www.data.govblogobama-administration-drives-re...

23

Blog Posts  

NLE Websites -- All DOE Office Websites (Extended Search)

11?&date_filter[value]&uid= en Improving our 11?&date_filter[value]&uid= en Improving our digital services to better serve you http://www.data.gov/node/117782

Log into vote 0

Throughout this past year, the National Archives and Federal agencies have been working to implement

24

Blog Posts  

NLE Websites -- All DOE Office Websites (Extended Search)

6?&date_filter[value]&uid= en Made In 6?&date_filter[value]&uid= en Made In America: Helping Revitalize U.S. Manufacturing http://www.data.gov/blog/made-america-helping-revitalize-us-manufacturing Log into vote

3
25

Blog Posts  

NLE Websites -- All DOE Office Websites (Extended Search)

7?&date_filter[value]&uid= en Innovators 7?&date_filter[value]&uid= en Innovators Using Federal Data to Help Consumers Make Informed Decisions http://www.data.gov/blog/innovators-using-federal-data-help-consumers-make-informed-decisions-0 Log into vote

1
By: Sarah Gearen

26

Acoustic black holes Matt Visser  

E-Print Network (OSTI)

Acoustic black holes Matt Visser Physics Department Washington University Saint Louis USA Ole Miss you develop a number of use- ful connections between supersonic uid ow and black holes in general is the basis underlying a deep and fruitful analogy between the black holes of Einstein gravity and supersonic

Visser, Matt

27

Analytical solution for Joule-Thomson cooling during CO2 geo-sequestration in depleted oil and gas reservoirs  

E-Print Network (OSTI)

caused by the speci?c heat capacity of the rock and connateis the ?uid speci?c heat capacity, w (ML ) is the density ofL T ? ) is the speci?c heat capacity of water, s (ML ?3 ) is

Mathias, S.A.

2010-01-01T23:59:59.000Z

28

Fluid Mechanics Part 1: General (Mechanical) Energy Equation and other topics  

E-Print Network (OSTI)

Fluid Mechanics Part 1: General (Mechanical) Energy Equation and other topics Dene. By writing down a (mechanical) energy conservation equation for this uid element, we nd that: p + u2 2 + gz.g. by a windmill); loss of mechanical energy from friction. All Eq. (1) really says is that the change

Nimmo, Francis

29

Closed Dual Fluid Gas Turbine Power Plant Without Emission Of Co  

E-Print Network (OSTI)

. This paper describes a construction and characteristics of a coal-gas-burning high eciency power plant which emits no carbon dioxide (CO 2 ) into the atmosphere. In the plant, CO 2 gas and superheated steam are used as the main and sub working uid, respectively, of a closed dual uid gas turbine power generation system. It is assumed that a coal gas whose principal compositions are CO, H2 , CO2 and CH4 is burnt in a combustor using oxygen, and that CO 2 gas and superheated steam are used as the main and sub working uid of a turbine, respectively. Consequently, the constituent gases of the combustion gas become CO2 and H2O. Thus, CO2 gas included in the exhaust gas can be easily separated at the condenser outlet from the condensate (H2O). Most of recovered CO 2 is recycled as the main working uid of the turbine. In the plant, high-temperature turbine exhaust gas is utilized in a waste heat boiler to produce superheated steam which is injected into the combustor in order to improve...

Into The Atmosphere; P. S. Pak; K. Nakamura; Y. Suzuki

1989-01-01T23:59:59.000Z

30

A variational approach to motion of triple junction of gas, liquid and solid  

E-Print Network (OSTI)

A variational approach to motion of triple junction of gas, liquid and solid Kensuke Yokoia;b;c;1 a to deal with motion of triple junctions of gas, liquid (or two kinds of uid) and solid based on the level with triple junctions of gas, liquid and solid. Numerical simulations for free surface ows with moving

Soatto, Stefano

31

Towards a cultural user interface generation principles  

Science Conference Proceedings (OSTI)

As ubiquitous computing, and pervasive computing technology are being applied rapidly to the service industry, in the field of HCI, more complex and in-depth research are required at the moment. The efforts to make user experience more valuable using ... Keywords: CTT, Cultural dimensions model, Cultural markers, Cultural user interface, Culture centered design, MB-UID, User interface generation

Jung-Min Oh; Nammee Moon

2013-03-01T23:59:59.000Z

32

College of Engineering Michigan Technological University  

E-Print Network (OSTI)

.engineering.mtu.edu Michigan Technological University is a leading public research university, conducting research, developing Speeding the way with computational uid dynamics Microgrids Using a game theory approach Flow electrode materials degrade during service." Hackney and his team study battery electrodes made of cobalt

33

SPN 2003 Preliminary Version Translating Hybrid Petri Nets into Hybrid  

E-Print Network (OSTI)

and rate of uid transitions. HPNs aim at providing an approximation to discrete-state systems in which corresponding to a disabled timed transition Tk the rate _Ck = 0. Transitions. State change rules the system model using nondeterministic transition rates and is intended for analysis in non

Gribaudo, Marco

34

Grid Resolution for the Simulation of Sloshing using CFD Bernhard Godderidge, Mingyi Tan, Chris Earl & Stephen Turnock  

E-Print Network (OSTI)

. However, this approach is not used for Liquefied Natural Gas (LNG) carriers and the accurate calculation a tank is partially filled with a liq- uid and subjected to an external excitation force [1]. Ships with large ballast tanks and liquid bulk cargo carriers, such as very large crude carriers (VLCCs

35

Inproved Performance of an Air Cooled Condenser (ACC) Using SPX...  

NLE Websites -- All DOE Office Websites (Extended Search)

Improved performance of an aIr cooled condenser (acc) UsIng spX WInd gUIde Technology aT coal-fIred ThermoelecTrIc poWer planTs promIsprojecT no. : de-nT0006549 Background As the...

36

A non-destructive method for mapping formation damage M.A. Khan a,*, S.Z. Jilani b,c  

E-Print Network (OSTI)

permeability, jd the damaged- zone permeability, rw the well radius, and rd the dam- aged-zone radius-o experimental set-up was designed to simu- late the drilling-¯uid circulation process at the forma- tion face-saturated case) within the statistical error margin. But in some of the mud-dam- aged samples (Fig. 2a

Al-Majed, Abdulaziz Abdullah

37

RussiaSNL2-web.indd  

National Nuclear Security Administration (NNSA)

Magneto-Hydrodynamic Simulation of Z- Magneto-Hydrodynamic Simulation of Z- and Z-θ Pinches at Pulsed Power Facilities at Sandia National Laboratories Principal Investigators: Heath Hanshaw (SNL) and Andrey P. Orlov (VNIIEF) Project Description Sandia has an ongoing eff ort to model and design Z-pinch radiation sources. Z-pinches achieve High Energy Density conditions, but low density kinetic eff ects and instabilities are important in their evolution. Though many elements of Z-pinch physics are not captured by fl uid approximations, a fl uid radiation magneto-hydrodynamic (RMHD) approach is the simplest and cheapest for design calculations. Approximate models are used in attempts to capture the missing physics. The Orlov group at VNIEEF is using a similar approach to model Z-pinches and explosively driven magnetic compression generators, but has made some

38

PRIVACY IMPACT ASSESSMENT: OCIO HSPD-12 Physical  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

OCIO OCIO - HSPD-12 Physical and Logical System PIA Template Version 4- June, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Departmental Element & Site August 27,2009 Office of the Chief Information Officer DOE Headquarters, Forrestal, 8H-065 Name of Information System or IT Project HSPD-12 Physical and Logical Access System Exhibit Project UID Project's Unique 10: 019-60-01-17-01-8062-04-404-140 (2010 UID) NewPIA D Update ~ HSPD-12

39

T-653: Linux Kernel sigqueueinfo() Process Lets Local Users Send Spoofed  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

53: Linux Kernel sigqueueinfo() Process Lets Local Users Send 53: Linux Kernel sigqueueinfo() Process Lets Local Users Send Spoofed Signals T-653: Linux Kernel sigqueueinfo() Process Lets Local Users Send Spoofed Signals June 23, 2011 - 4:49am Addthis PROBLEM: Userland should be able to trust the pid and uid of the sender of a signal if the si_code is SI_TKILL. PLATFORM: Version(s): prior to 2.6.38 ABSTRACT: A vulnerability was reported in the Linux Kernel. A local user can send spoofed signals to other processes in certain cases. reference LINKS: OSVDB ID: 71652 SecurityTracker Alert ID: 1025690 Linux Update CVE-2011-1182 Linux Reference 1 Linux Reference 2 IMPACT ASSESSMENT: High Discussion: A local user with the ability to send signals to a process can spoof the uid and pid of the sending process via the sigqueueinfo() system call.

40

Mixing materials within zone boundaries using shape overlays  

SciTech Connect

Shape overlays provide a means of statically imposing a physical region containing specified material properties onto a zoned mesh. In the most general case, material interface boundaries are unrelated to mesh zone boundaries, causing zones to contain a mixture of materials, and the mesh itself is not uniform in physical space. We develop and apply an algorithm for shape overlays on nonorthogonal, nonuniform meshes in two dimensions. Examples of shape generation in a multiblock uid dynamics code are shown.

Grandy, J.

1997-04-22T23:59:59.000Z

Note: This page contains sample records for the topic "vevent uid t145429cdt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

science.uts.edu.au think.change.do  

E-Print Network (OSTI)

science.uts.edu.au think.change.do UTS: Science UndeRgRadUatecoURSeSgUide2014 #12;contactUS Tel: 1300 ASK UTS (1300 275 887) Email: science@uts.edu.au science.uts.edu.au contentS Why Science at UTS? 01 World Class Facilities 02 Careers in Science and Mathematics 04 UTS: Science Courses 05 Bache

University of Technology, Sydney

42

Smoothed particle hydrodynamics Non-Newtonian model for ice-sheet and ice-shelf dynamics  

SciTech Connect

Mathematical modeling of ice sheets is complicated by the non-linearity of the governing equations and boundary conditions. Standard grid-based methods require complex front tracking techniques and have limited capability to handle large material deformations and abrupt changes in bottom topography. As a consequence, numerical methods are usually restricted to shallow ice sheet and ice shelf approximations. We propose a new smoothed particle hydrodynamics (SPH) non-Newtonian model for coupled ice sheet and ice shelf dynamics. SPH, a fully Lagrangian particle method, is highly scalable and its Lagrangian nature and meshless discretization are well suited to the simulation of free surface ?ows, large material deformation, and material fragmentation. In this paper, SPH is used to study 3D ice sheet/ice shelf behavior, and the dynamics of the grounding line. The steady state position of the grounding line obtained from SPH simulations is in good agreement with laboratory observations for a wide range of simulated bedrock slopes, and density ratios, similar to those of ice and sea water. The numerical accuracy of the SPH algorithm is veri?ed by simulating Poiseuille ?ow, plane shear ?ow with free surface and the propagation of a blob of ice along a horizontal surface. In the laboratory experiment, the ice was represented with a viscous Newtonian ?uid. In the present work, however, the ice is modeled as both viscous Newtonian ?uid and non-Newtonian ?uid, such that the e?ect of non-Newtonian rheology on the dynamics of grounding line was examined. The non-Newtonian constitutive relation is prescribed to be Glen’s law for the creep of polycrystalline ice. A V-shaped bedrock ramp is further introduced to model the real geometry of bedrock slope.

Pan, Wenxiao; Tartakovsky, Alexandre M.; Monaghan, Joseph J.

2013-06-01T23:59:59.000Z

43

UPF R&OM Management  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Root Cause Analysis Root Cause Analysis Contract and Project Management Corrective Measure 3 Centralized Risk Register Tools and Methods for DOE Projects and Programs User Guide Draft April 30, 2010 Centralized Risk Register Users Guide i Rev. 0 Revisions Revision Number Date Description A 4/30/2010 Initial Issue - Draft for Comment Centralized Risk Register Users Guide ii Rev. 0 Acronyms CRR Centralized Risk Register DOE U.S. Department of Energy IT information technology T&O Threats and Opportunities UID User ID WBS Work Breakdown Structure Centralized Risk Register Users Guide iii Rev. 0 Contents 1.0 Introduction .......................................................................................................................... 1 1.1 CRR Software Administrator ........................................................................................ 1

44

getnim Command at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

getnim command getnim command getnim - NIM's Command Line Interface This page describes the inquiry-only command called getnim that users can use interactively and in scripts to get their account balances. GETNIM(l) NERSC GETNIM(l) NAME getnim - query the NERSC banking database for remaining allocation, resources and repository information SYNOPSIS getnim [ options ] -Rrname or getnim [ options ] -Rrname { -uuid | -Uuname } or getnim [ options ][ -D ] { -uuid | -Uuname } or getnim [ options ] -Rrname { -l | -L } or getnim [ options ] -Fbatchname PARAMETERS -R to specify the repository name -U to specify the user name -u or specify the user uid -l | -L give the charge info for each user in the reposi-

45

Bulletin of Tibetology: Volume 11 Number 3 : Full issue  

E-Print Network (OSTI)

the Mauryan times. From the find of a relic­ casket within an ancient breach inside the core of the stupa, the excavator surmised that this was the stupa built by the Lichchhavis over their share of the body-relics of Lord Buddha, which, according... liberal me of actud timber. The evolution of the shapes of the window-arch from a simple to elaborate curve, of the pillar from a plain to decorated fOI m, and of the stupa-dome from a hembphere to a cylinder are other gUiding principles. The earliest...

Namgyal Institute of Tibetology

46

Investigation of combustive flows and dynamic meshing in computational fluid dynamics  

E-Print Network (OSTI)

Computational Fluid Dynamics (CFD) is a ?eld that is constantly advancing. Its advances in terms of capabilities are a result of new theories, faster computers, and new numerical methods. In this thesis, advances in the computational ?uid dynamic modeling of moving bodies and combustive ?ows are investigated. Thus, the basic theory behind CFD is being extended to solve a new class of problems that are generally more complex. The ?rst chapter that investigates some of the results, chapter IV, discusses a technique developed to model unsteady aerodynamics with moving boundaries such as ?apping winged ?ight. This will include mesh deformation and ?uid dynamics theory needed to solve such a complex system. Chapter V will examine the numerical modeling of a combustive ?ow. A three dimensional single vane burner combustion chamber is numerically modeled. Species balance equations along with rates of reactions are introduced when modeling combustive ?ows and these expressions are discussed. A reaction mechanism is validated for use with in situ reheat simulations. Chapter VI compares numerical results with a laminar methane ?ame experiment to further investigate the capabilities of CFD to simulate a combustive ?ow. A new method of examining a combustive ?ow is introduced by looking at the solutions ability to satisfy the second law of thermodynamics. All laminar ?ame simulations are found to be in violation of the entropy inequality.

Chambers, Steven B.

2004-12-01T23:59:59.000Z

47

An experimental investigation of the countercurrent flow limitation  

E-Print Network (OSTI)

A new correlation for the prediction of the Countercurrent Flow Limitation (CCFL) in a large diameter tube with a falling water lm is proposed. Dierent from previous correlations, it predicts the onset of ooding by considering the relative velocities of the working uids and the lm thickness of the liquid layer. This provides a more complete accounting of the physical forces contributing to CCFL. This work has been undertaken in order to provide a better estimate of CCFL for reactor safety codes such as MELCOR, MAAP, and SCDAP/RELAP. Experiments were conducted to determine the CCFL for a 3-inch inner diameter smooth tube with an annular liquid lm and air injection from the bottom. The size of the test section and the range of working uid ow rates were based on a scaling analysis of the surge line of a PressurizedWater Reactor pressurizer. An experimental facility was designed and constructed based on this analysis in order to collect data on the CCFL phenomenon. In order to capture some of the physical phenomena at the onset of ooding visual pictures were taken at high speed. These pictures provided a new understanding of the process of transition to ooding. The facility also produced a new set of ooding data. This can also lead to a more comprehensive mechanistic model.

Solmos, Matthew Aaron

2008-05-01T23:59:59.000Z

48

PRIVACY IMPACT ASSESSMENT: Occupational Medicine Assistant PIA  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Medicine Medicine - Assistant PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Deparlment of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT iDafe 'Depauwerltal El.ment& iSlte June 10, 2009 Idaho National Laboratory Name :of,lnfonnation Systetnol"'ITiPtoJect Occupational Medicine - Assistant Exhlblt;ProJect UID Indirect funded Occupational Safety and Health NewPIA 0 Update D N T 'tl I Contact Information arne I e . , Phone, Email System Owner Local Privacy Act Offtcer

49

PRIVACY IMPACT ASSESSMENT: INL E-IDR  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

INL INL E-IDR (Invention Disclosure Record) PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. I MODULE 1- PRIVACY NEEDS ASSESSMENT Date O..parlmental Element & Site 6/10/09 Idaho National Laboratory Building: 654 BUilding Name: EROS Name of Information System or IT Project E-IDR (Invention Disclosure Record) Exhibit Project UID 61104 NewPIA GJ Update D N T 'tl I Contact Information arne, I e Ph E ' I one, mal System Owner Wendy Skinner Local Privacy Act

50

PRIVACY IMPACT ASSESSMENT: OFFICE OF LEGACY MANAGEMENT: RECORDS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

-. -. ., ,-- -.' * PRIVACY IMPACT ASSESSMENT: OFFICE OF LEGACY MANAGEMENT: RECORDS HANDLING SYSTEM: ELECTRONIC RECORDS KEEPING SYSTEM PIA Template Version - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1. Department of Energy Privacy Program, Appendix A. Privacy Impact Assessments. for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/02061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Deparbnental Element & Site . June 4, 2009 Office of Legacy Management, Morgantown, WV :;:~:f~~r~;;:reC: LM Records Handling System (LMRHS01) - Electronic Records Keeping System exhibit Project UID 019-10-01-31-02-1014-00

51

EI04~ PRIVACY IMPACT ASSESSMENT: INL PeopleSoft Human Resource  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EI04~ PRIVACY IMPACT ASSESSMENT: INL PeopleSoft - Human Resource System PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT June 11, 2009 oep"rtrnental Element &Site Idaho National Laboratory (INL) Building Number: REC 608 Building Name: IORC Name 'of Infonnatlon System, or IT Project INL PeopleSoft - Human Resource System exhibit ProJect UID 157044 NewPIA D Update ~ _____ i DOE PIA - Peoplesoft Final.doc

52

PRIVACY IMPACT ASSESSMENT: INL INGSM2009 PIA Template Version  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

* * PRIVACY IMPACT ASSESSMENT: INL INGSM2009 PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT D.. June 16, 2009 Deparlnient~", Element &Site Idaho National Laboratory N.....,e,df'llnformatlon 10th International Nuclear Graphite Specialists Meeting registration web site. ,SY8tem,orIT Project exhibit Project UID Enterprise Architecture Application 10 - 223419 NewPIA D Update 0 System

53

PRIVACY IMPACT ASSESSMENT: Visitor Dosimeter Badge Tracking  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Visitor Visitor Dosimeter Badge Tracking PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetexUneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date June 11, 2009 Deparbnental Idaho National Laboratory Element & Site Building 616 Willow Creek Building Name of Information Visitor Dosimeter Badge Tracking System or IT Project Exhibit Project UID 217975 New PIA ~ Update D Name, Title I Contact Information Phone, Email Lynn Rockhold System Owner I' 1\ I \ \ ( y P II 114 I' "I

54

PRIVACY IMPACT ASSESSMENT: OFFICE OF LEGACY MANAGEMENT: RECORDS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

* PRIVACY IMPACT ASSESSMENT: OFFICE OF LEGACY MANAGEMENT: RECORDS HANDLING SYSTEM ROCKY FLATS ENVIRONMENTAL RECORDS DATABASE PIA Template Version - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Departmental Element & Site June 4,2009 Office of Legacy Management, Morgantown, WV Name of Information LM Records Handling System (LMRHS01) - Rocky Flats Environmental Records System or IT Project Database exhibit Project UID 019-10-01-31-02-1014-00

55

PRIVACY IMPACT ASSESSMENT: IDAHO NATIONAL LABORATORY-TRAIN PIA  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

IDAHO IDAHO NATIONAL LABORATORY-TRAIN PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/02061.pdf Please complete electronically: no hand-wrltten submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Departmental Element &Site June 11, 2009 Idaho National Laboratory Name of Infonnatlon SY8tem or IT Project Training Records and Information Network (TRAIN) Exhibit Project UID 70 NewPIA [!J Update D N T Otl I Contact Information ame, I e Ph E " I one, mal SY8tem Owner Carla J. Drake, Manager (208) 526-0841 Systems Approach

56

PRIVACY IMPACT ASSESSMENT: Occupational Safety Health Occupational  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Occupational Occupational Safety & Health - Occupational Injury & Illness System PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1 J Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date June 12, 2009 Departmental Idaho National Laboratory Element & Site Name of Infonnatlon Occupational Injury & Illness System (01&15) System or IT Project Exhibit Project UID 136 New PIA ~ Update D Name, Title Contact Information Phone, Email Anthony J. Kavran (208) 526-5826

57

PRIVACY IMPACT ASSESSMENT: Integrated Safety Management Workshop  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integrated Integrated Safety Management Workshop Registration PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Departmental Element&·Slte 16/Jun/09 Idaho National Laboratory Engineering Research Office Building (EROB) Name of-Information System or IT Project Integrated Safety Management Workshop Registration Exhibit Project UID 207765 NewPIA D Update 0 DOE PIA - ISMS Workshop Finallxw.doc N T "tl I

58

PRIVACY IMPACT ASSESSMENT: Human Resources Personal Information  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Human Human Resources - Personal Information Change Request PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Departmental Element & Site Idaho National Engineering Laboratory Engineering Research Office Building (EROB) Name of Information Human Resources - Personal Information Change Request System or IT Project Business Enclave Exhibit Project UID 106800 NewPIA ~ Update D N T 'tl I Contact Information arne,

59

PRIVACY IMPACT ASSESSMENT: INL Manchester Software  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Manchester Manchester Software 1099 Reporting PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program. Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date 06/09/09 Departmental Idaho National Laboratory Element &Site Building Name: lAB Name of Infonnatlon Manchester Software 1099 Reporting System or IT Project Exhibit Project UID 202021 New PIA GJ Update D Name, Title I Contact Information Phone, Email Bryan Larson, System Owner 208-526-8685 Technical Lead, Manchester

60

RIVACY IMPACT ASSESSMENT: SPRO Business Operations General Support  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

RIVACY IMPACT ASSESSMENT: SPRO - Business Operations General Support System PIA Template Version 3 - May, 2009 iiiiiiiiiiiiiii Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/02061.pdf MODULE I - PRIVACY NEEDS ASSESSMENT Date Departmental Element & Site July 21, 2009 Office of Fossil Energy Strategic Petroleum Reserve Office - New Orleans, LA 70123 Name of Information System or IT Project Unclassified Business Operations General Support System (GSS) exhibit Project UID UPI Code: 019-20-01-16-02-3612-00 NewPIA 0 Update D N T 'tl I Contact Information arne, I e Ph E 'I one, mal System Owner Local Privacy

Note: This page contains sample records for the topic "vevent uid t145429cdt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

PRIVACY IMPACT ASSESSMENT: Office  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Office Office of Information Resources - FOIAXpress Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/02061.pdf Please complete electronically: no hand-written submissions will be accepted. This template may not be modified. MODULE 1- PRIVACY NEEDS ASSESSMENT Date Depamnf!l1tal Elel1l~nt&$ite july 23, 2009 Office of Information Resources Office of Management DOE Headquarters, Germantown, Germantown Computer Center Server Room Nameonl1fol'l11i1tion Sysleijlprl'f 'Project FOIAXpress ExhibitProj~tUID TBD NeWPIA ~ Update D Please indicate whether this is a new

62

Simulation information regarding Sandia National Laboratories%3CU%2B2019%3E trinity capability improvement metric.  

SciTech Connect

Sandia National Laboratories, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory each selected a representative simulation code to be used as a performance benchmark for the Trinity Capability Improvement Metric. Sandia selected SIERRA Low Mach Module: Nalu, which is a uid dynamics code that solves many variable-density, acoustically incompressible problems of interest spanning from laminar to turbulent ow regimes, since it is fairly representative of implicit codes that have been developed under ASC. The simulations for this metric were performed on the Cielo Cray XE6 platform during dedicated application time and the chosen case utilized 131,072 Cielo cores to perform a canonical turbulent open jet simulation within an approximately 9-billion-elementunstructured- hexahedral computational mesh. This report will document some of the results from these simulations as well as provide instructions to perform these simulations for comparison.

Agelastos, Anthony Michael; Lin, Paul T.

2013-10-01T23:59:59.000Z

63

TO: J. C. Stearns  

Office of Legacy Management (LM)

C. Stearns C. Stearns FRwi: !lethods end ;.iaterinlg section 3ATQ :'ovembor 7, lghh A :netno ":ilS w1ttcn (JJC-x-162) to ;,I-. ~~llison descr1binP: a rtener netallur~~icnl, fabrication, and +ysica.I studies which owht to be car lntonnively ag qossible startin!: i.nesdintely, in order to ?rovide infa desiirn of efficient methods of using: atomic no:rer. This nrsscnt memo gnscific in mentlonfn,~ lines of uor!r which the i&thoris and iiaterids 5 to be of tmortmce. It also tells names of neonle and nlaceg where I, is available. 'The stu;lies n.3.v be divided into 5 narts: 1 7&u..-3W4 of led out as mation for the ecomes more ction believea eful eouinment I. Phaseg of Snecial Metals and Their hlloyr II. Pahricatfon TIT. Cormsion IV. Heat Transfer end i?uid Flow

64

EIS-0287: Final Environmental Impact Statement | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Final Environmental Impact Statement Final Environmental Impact Statement EIS-0287: Final Environmental Impact Statement Idaho High-Level Waste and Facilities Disposition This EIS analyzes the potential environmental consequences of alternatives for managing high- level waste (HLW) calcine, mixed transuranic waste/sodium bearing waste (SBW) and newly generated liq- uid waste at the Idaho National Engineering and Environmental Laboratory (INEEL) in liquid and solid forms. This EIS also analyzes alternatives for the final disposition of HLW management facilities at the INEEL after their missions are completed. After considering comments on the Draft EIS (DOE/EIS- 0287D), as well as information on available treatment technologies, DOE and the State of Idaho have iden- tified separate preferred alternatives for

65

Modeling of cryogen leakage through composite laminates  

E-Print Network (OSTI)

Cryogenic composites ?nd critical application in the manufacture of fuel tanks for reusable launch vehicles due to signi?cant reduction in overall structural weight of the tank. These fuel tanks contain pressurized cryogen such as hydrogen at cryogenic temperatures. Exposure to varying temperatures and mechanical loads resulting from ?ight cycle, containment of pressurized cryogen causes thermo-mechanical loading of the composite. The thermo-mechanical loading cycles combined with anisotropy of the composite and mismatch in the thermal and mechanical properties of ?bers and matrix lead to transverse matrix cracks (TMC) in each ply. TMC in adjacent plies intersect in localized regions at ply interfaces called crack junctions, which open up due to delamination on application of thermo-mechanical load. TMC and crack junctions usually form a network of leakage paths that assists leakage of cryogen through the composite. In this study, the volumetric ?ow rate of cryogen leaking through a damaged cross-ply composite with ?ve plies is determined by estimating the effective conductance of the leakage paths. For a given damage state and applied load, crack junction and TMC openings are obtained by ?nite element analysis. A computational ?uid dynamics model is ?rst used to estimate the effective conductance of a leakage path to hydrogen leakage and then a simplified analytical model is used to compute the effective conductance from individual conductances of each crack junction and TMC through a series-parallel combination. A single phase ?ow model is considered for the numerical analysis of hydrogen ?ow through TMC and crack junctions. The simulations are carried out using a commercial computational ?uid dynamics software, FLUENT. Parametric studies are carried out to investigate the dependence of leak rate of hydrogen on the irregularities of the TMC geometry and TMC, crack junction openings. The simpli?ed model predictions of the effective conductance for the ?ve ply composite show good comparison with numerical simulations.

Peddiraju, Naga Venkata Satya Pravin Kumar

2004-12-01T23:59:59.000Z

66

Infrared Spectroscopy of Atomic Lines in Gaseous Nebulae  

E-Print Network (OSTI)

Spectroscopy in the infrared provides a means to assess important properties of the plasma in gaseous nebulae. We present some of our own work that illustrates the need for interactions between the themes of this conference - astronomical data, atomic data, and plasma simulations. We undertook Infrared Space Observatory (ISO) observations with the intent of better understanding the effects of density variations in nebulae, particularly planetary nebulae (PNs), by determining average electron densities from the flux ratios of several fine-structure, IR emission lines. Instead, we are able to ascertain only minor density information because of several instances of the observed line flux ratios being out of range of the theoretical predictions using current atomic data. In these cases, the ISO data cannot presently be used to derive electron density, but rather provide direction for needed improvements in the atomic collision strengths. We have detected an unidentified (uid) strong emission line in an ISO/SWS spectrum of the Orion Nebula. The line has a rest wavelength 2.89350$\\pm$0.00003 $\\mu$m. A long-slit UKIRT observation confirms the presence of this line and shows that the emission is spatially extended and appears to be coincident with the brightest part of the ionized region. We do not detect the uid line in our SWS02 spectra of any of the several bright PNs which we observed for a comparable time. The need for basic atomic data, in this case wavelengths to aid species identification, is paramount for future progress. We look toward the future with a brief synopsis of upcoming or planned IR missions.

R. H. Rubin; R. J. Dufour; T. R. Geballe; S. W. J. Colgan; J. P. Harrington; S. D. Lord; A. L. Liao; D. A. Levine

2001-09-23T23:59:59.000Z

67

Acoustic impedance inversion of the Lower Permian carbonate buildups in the Permian Basin, Texas  

E-Print Network (OSTI)

Carbonate reservoirs are usually diffcult to map and identify in seismic sections due to their complex structure, lithology and diagenetic frabrics. The Midland Basin, located in the Permian Basin of West Texas, is an excellent example of these complex carbonate structures. In order to obtain a better characterization and imaging of the carbonate buildups, an acoustic impedance inversion is proposed here. The resolution of the acoustic impedance is the same as the input seismic data, which is greatly improved with the addition of the low frequency content extracted from well data. From the broadband volume, high resolution maps of acoustic impedance distributions were obtained, and therefore the locations of carbonate buildups were easily determined. A correlation between acoustic impedance and porosity extracted from well data shows that areas with high acoustic impedance were correlated with low porosity values, whereas high porosities were located in areas of low acoustic impedance. Theoretical analyses were performed using the time-average equation and the Gassmann equation. These theoretical models helped to understand how porosity distributions affect acoustic impedance. Both equations predicted a decrease in acoustic impedance as porosity increases. Inversion results showed that average porosity values are 5% [plus or minus] 5%, typical for densely cemented rocks. Previous studies done in the study area indicate that grains are moderately to well-sorted. This suggests that time-average approximation will overestimate porosity values and the Gassmann approach better predicts the measured data. A comparison between measured data and the Gassmann equation suggests that rocks with low porosities (less than 5%) tend to have high acoustic impedance values. On the other hand, rocks with higher porosities (5% to 10%) have lower acoustic impedance values. The inversion performed on well data also shows that the ?uid bulk modulus for currently producing wells is lower than in non-productive wells, (wells with low production rates for brine and hydrocarbons), which is consistent with pore ?uids containing a larger concentration of oil. The acoustic impedance inversion was demonstrated to be a robust technique for mapping complex structures and estimating porosities as well. However, it is not capable of differentiating different types of carbonate buildups and their origin.

Pablo, Buenafama Aleman

2004-08-01T23:59:59.000Z

68

NRELs WEC Modeling Tools  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL NREL i s a n a*onal l aboratory o f t he U .S. D epartment o f E nergy, O ffice o f E nergy E fficiency a nd R enewable E nergy, o perated b y t he A lliance f or S ustainable E nergy, L LC. NREL's W ave E nergy Converter M odeling E fforts Marine a nd H ydrokine:c Instrumenta:on, M easurement & Computer M odeling W orkshop Yi---Hsiang Y u, Y e L i, B ob T hresher, Marco Masciola, M ichael L awson July 9 , 2 012 2 Objec:ves * Develop f easible n umerical t ools to assist modeling of wave energy conversion ( WEC) s ystems * Provide a b aseline s ystem d esign and a power genera:on performance a nalysis * Collaborate w ith i ndustry, academia and other na:onal laboratories t o a ccelerate W EC technologies development 3 NREL's M odeling E fforts * Computa:onal fl uid dynamic ( CFD) s imula:ons * Mooring

69

Modeling Explosive/Rock Interaction During Presplitting Using ALE Computational Methods  

SciTech Connect

Arbitrary Lagrangian Eulerian (ALE) computational techniques allow treatment of gases, liq- uids, and solids in the same simulation. ALE methods include the ability to treat shockwaves in gases, liquids, and solids and the interaction of shockwaves with each other and with media from one of the other categories. ALE codes can also treat explosive detonation and the expansion of the explosive gases and their interaction with air and solids. ALEGRA is a 3-DALE code that has been developed at Sandia National Laboratories over the past few years. ALEGRA has been applied to a 2-D simulation of presplitting using decoupled explosives in rock blasting with very interesting results. The detonation of the explosive at the bottom of the hole sends a shock wave up the borehole driven by the explosive gas expanding into air. The explosive gas compresses the air against the stemming column where it rebounds and recompresses at the bottom of the borehole. This type of ringing takes several cycles to damp out. The explosively induced expansion of the borehole is also treated by ALEGRA as well as the shock wave imparted to the rock. The presentation of this paper will include sev- eral computer animations to aid in understanding this complex phenomenon.

Jensen, Richard P.; Preece, Dale S.

1999-04-27T23:59:59.000Z

70

BOILER-SUPERHEATED REACTOR  

DOE Patents (OSTI)

A nuclear power reactor of the type in which a liquid moderator-coolant is transformed by nuclear heating into a vapor that may be used to drive a turbo- generator is described. The core of this reactor comprises a plurality of freely suspended tubular fuel elements, called fuel element trains, within which nonboiling pressurized liquid moderator-coolant is preheated and sprayed through orifices in the walls of the trains against the outer walls thereof to be converted into vapor. Passage of the vapor ovcr other unwetted portions of the outside of the fuel elements causes the steam to be superheated. The moderatorcoolant within the fuel elements remains in the liqUid state, and that between the fuel elements remains substantiaily in the vapor state. A unique liquid neutron-absorber control system is used. Advantages expected from the reactor design include reduced fuel element failure, increased stability of operation, direct response to power demand, and circulation of a minimum amount of liquid moderatorcoolant. (A.G.W.)

Heckman, T.P.

1961-05-01T23:59:59.000Z

71

Magnetic Reconnection  

SciTech Connect

We review the fundamental physics of magnetic reconnection in laboratory and space plasmas, by discussing results from theory, numerical simulations, observations from space satellites, and the recent results from laboratory plasma experiments. After a brief review of the well-known early work, we discuss representative recent experimental and theoretical work and attempt to interpret the essence of significant modern findings. In the area of local reconnection physics, many significant findings have been made with regard to two- uid physics and are related to the cause of fast reconnection. Profiles of the neutral sheet, Hall currents, and the effects of guide field, collisions, and micro-turbulence are discussed to understand the fundamental processes in a local reconnection layer both in space and laboratory plasmas. While the understanding of the global reconnection dynamics is less developed, notable findings have been made on this issue through detailed documentation of magnetic self-organization phenomena in fusion plasmas. Application of magnetic reconnection physics to astrophysical plasmas is also brie y discussed.

Masaaki Yamada, Russell Kulsrud and Hantao Ji

2009-09-17T23:59:59.000Z

72

Three Models for Waterflooding in a Naturally Fractured Petroleum Reservoir  

E-Print Network (OSTI)

Introduction. For the purposes of this paper a naturally fractured reservoir is a porous medium that has been fractured in a regular geometric fashion; the resulting medium consists of a collection of porous matrix blocks, each of which is quite small with respect to the size of the reservoir, essentially lling out the reservoir, and a set of thin fractures that separate the blocks. The fractures will be considered to be generated by either two or three families of parallel planes. Though the total volume in the fractures is very small in comparison to the total void volume in the porous blocks, the ow of uids in such a fractured reservoir is seriously aected by the existence of the fractures, since the resistance to ow in the fractures is much smaller than that in the blocks. Flow in the blocks will be described by means of the usual Darcy and conservation laws [17]. Flow in the fractures will also be described using Darcy's law; this implies that the fractures will be t

Jim Douglas, Jr.

1987-01-01T23:59:59.000Z

73

I'  

Office of Legacy Management (LM)

C .,JNY f~' C .,JNY f~' ~=' ~--l _ ,.,, L I' ,, . P. 0. BOX tsa NT. NEILTHY STATION \. CINCINNATI 31. OHIO Mr. c. L. w tvf- u. 5. Atonaic Enugy C0mmi~~lon P. 0. Box 128. Mt. Healthy Strtlon CiEub?lkti 31, Ohio S UB JECT: RESUME ACTlvlTlEs JULT 1955 Deu Mr. Karl: hqnmt 3, 1955 SPECIAL REREVIEW FINAL DETERMINATION UNCL@SIFlJ3 The following is .ubmlttsd for TECliNlCAL DNBION: 7ha 33-l/2% TBP flow sheet am introdnc.d in tllo hkre rhown t&t the now flow l h cr.... (25%) u antic at l flow rate of 32~GP or ra-*xtrutios cal thr nitric uid (0.03 l trurn exceed the pre conceatratbn of these contaminants by luroaring l crubbw efficiopcy of the b colam& A tut conducted In,Pluu 4 to detuxnlw the corrodon tieeta of thorium oxide produced from thorium nitrate (TNT) coata- approrknrtoly 500 ppm rulfato

74

Next Generation Safeguards Initiative: Overview and Policy Context of UF6 Cylinder Tracking Program  

Science Conference Proceedings (OSTI)

Thousands of cylinders containing uranium hexafluoride (UF{sub 6}) move around the world from conversion plants to enrichment plants to fuel fabrication plants, and their contents could be very useful to a country intent on diverting uranium for clandestine use. Each of these large cylinders can contain close to a significant quantity of natural uranium (48Y cylinder) or low-enriched uranium (LEU) (30B cylinder) defined as 75 kg {sup 235}U which can be further clandestinely enriched to produce 1.5 to 2 significant quantities of high enriched uranium (HEU) within weeks or months depending on the scale of the clandestine facility. The National Nuclear Security Administration (NNSA) Next Generation Safeguards Initiative (NGSI) kicked off a 5-year plan in April 2011 to investigate the concept of a unique identification system for UF{sub 6} cylinders and potentially to develop a cylinder tracking system that could be used by facility operators and the International Atomic Energy Agency (IAEA). The goal is to design an integrated solution beneficial to both industry and inspectorates that would improve cylinder operations at the facilities and provide enhanced capabilities to deter and detect both diversion of low-enriched uranium and undeclared enriched uranium production. The 5-year plan consists of six separate incremental tasks: (1) define the problem and establish the requirements for a unique identification (UID) and monitoring system; (2) develop a concept of operations for the identification and monitoring system; (3) determine cylinder monitoring devices and technology; (4) develop a registry database to support proof-of-concept demonstration; (5) integrate that system for the demonstration; and (6) demonstrate proof-of-concept. Throughout NNSA's performance of the tasks outlined in this program, the multi-laboratory team emphasizes that extensive engagement with industry stakeholders, regulatory authorities and inspectorates is essential to its success.

Boyer, Brian D [Los Alamos National Laboratory; Whitaker, J. Michael [ORNL; White-Horton, Jessica L. [ORNL; Durbin, Karyn R. [NNSA

2012-07-12T23:59:59.000Z

75

Simulation model finned water-air-coil withoutcondensation  

SciTech Connect

A simple simulation model of a finned water-to- air coil without condensation is presented. The model belongs to a collection of simulation models that allows eficient computer simulation of heating, ventilation, and air-conditioning (HVAC) systems. The main emphasis of the models is short computation time and use of input data that are known in the design process of an HVAC system. The target of the models is to describe the behavior of HVAC components in the part load operation mode, which is becoming increasingly important for energy efficient HVAC systems. The models are intended to be used for yearly energy calculation or load calculation with time steps of about 10 minutes or larger. Short-time dynamic effects, which are of interest for different aspects of control performance, are neglected. The part load behavior of the coil is expressed in terms of the nominal condition and the dimensionless variation of the heat transfer with change of mass flow and temperature on the water side and the air side. The effectiveness- NTU relations are used to parametrize the convective heat transfer at nominal conditions and to compute the part load conditions. Geometrical data for the coil are not required, The calculation of the convective heat transfer coefficients at nominal conditions is based on the ratio of the air side heat transfer coefficients multiplied by the fin eficiency and divided by the water side heat transfer coefficient. In this approach, the only geometrical information required are the cross section areas, which are needed to calculate the~uid velocities. The formulas for estimating this ratio are presented. For simplicity the model ignores condensation. The model is static and uses only explicit equations. The explicit formulation ensures short computation time and numerical stability. This allows using the model with sophisticated engineering methods such as automatic system optimization. The paper fully outlines the algorithm description and its simplifications. It is not tailored for a particular simulation program to ensure easy implementation in any simulation program.

Wetter, Michael

1999-01-01T23:59:59.000Z

76

Paralization and check pointing of GPU applications through program transformation  

SciTech Connect

GPUs have emerged as a powerful tool for accelerating general-purpose applications. The availability of programming languages that makes writing general-purpose applications for running on GPUs tractable have consolidated GPUs as an alternative for accelerating generalpurpose applications. Among the areas that have bene#12;ted from GPU acceleration are: signal and image processing, computational uid dynamics, quantum chemistry, and, in general, the High Performance Computing (HPC) Industry. In order to continue to exploit higher levels of parallelism with GPUs, multi-GPU systems are gaining popularity. In this context, single-GPU applications are parallelized for running in multi-GPU systems. Furthermore, multi-GPU systems help to solve the GPU memory limitation for applications with large application memory footprint. Parallelizing single-GPU applications has been approached by libraries that distribute the workload at runtime, however, they impose execution overhead and are not portable. On the other hand, on traditional CPU systems, parallelization has been approached through application transformation at pre-compile time, which enhances the application to distribute the workload at application level and does not have the issues of library-based approaches. Hence, a parallelization scheme for GPU systems based on application transformation is needed. Like any computing engine of today, reliability is also a concern in GPUs. GPUs are vulnerable to transient and permanent failures. Current checkpoint/restart techniques are not suitable for systems with GPUs. Checkpointing for GPU systems present new and interesting challenges, primarily due to the natural di#11;erences imposed by the hardware design, the memory subsystem architecture, the massive number of threads, and the limited amount of synchronization among threads. Therefore, a checkpoint/restart technique suitable for GPU systems is needed. The goal of this work is to exploit higher levels of parallelism and to develop support for application-level fault tolerance in applications using multiple GPUs. Our techniques reduce the burden of enhancing single-GPU applications to support these features. To achieve our goal, this work designs and implements a framework for enhancing a single-GPU OpenCL application through application transformation.

Solano-Quinde, Lizandro Dami#19; an [Ames Laboratory

2012-11-15T23:59:59.000Z