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Title: Detailed Measurements of Turbulent Rayleigh-Taylor Mixing at Large and Small Atwood Numbers

Abstract

This project has two major tasks: Task 1. The construction of a new air/helium facility to collect detailed measurements of Rayleigh-Taylor (RT) mixing at high Atwood number, and the distribution of these data to LLNL, LANL, and Alliance members for code validation and design purposes. Task 2. The collection of initial condition data from the new Air/Helium facility, for use with validation of RT simulation codes at LLNL and LANL. Also, studies of multi-layer mixing with the existing water channel facility. Over the last twelve (12) months there has been excellent progress, detailed in this report, with both tasks. As of December 10, 2004, the air/helium facility is now complete and extensive testing and validation of diagnostics has been performed. Currently experiments with air/helium up to Atwood numbers of 0.25 (the maximum is 0.75, but the highest Reynolds numbers are at 0.25) are being performed. The progress matches the project plan, as does the budget, and we expect this to continue for 2005. With interest expressed from LLNL we have continued with initial condition studies using the water channel. This work has also progressed well, with one of the graduate Research Assistants (Mr. Nick Mueschke) visiting LLNL the past twomore » summers to work with Dr. O. Schilling. Several journal papers are in preparation that describe the work. Two MSc.'s have been completed (Mr. Nick Mueschke, and Mr. Wayne Kraft, 12/1/03). Nick and Wayne are both pursuing Ph.D.s' funded by this DOE Alliances project. Presently three (3) Ph.D. graduate Research Assistants are supported on the project, and two (2) undergraduate Research Assistants. During the year two (2) journal papers and two (2) conference papers have been published, ten (10) presentations made at conferences, and three (3) invited presentations.« less

Authors:
Publication Date:
Research Org.:
Texas A & M Univ., College Station, TX (United States). Texas A & M Engineering Experiment Station
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
835137
Report Number(s):
DOE/NA/00060-2
TRN: US0701786
DOE Contract Number:  
FG03-02NA00060
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONSTRUCTION; DESIGN; DISTRIBUTION; LANL; LAWRENCE LIVERMORE NATIONAL LABORATORY; REYNOLDS NUMBER; SIMULATION; TESTING; VALIDATION; WATER; Rayleigh-Taylor Instability; Experimental studies at high Atwood number; stochastically steady; Inertially Confined Fusion; computer simulation validation and verification; theoretical models; collaborations with LLNL and LANL

Citation Formats

Malcolm J Andrews, Ph D. Detailed Measurements of Turbulent Rayleigh-Taylor Mixing at Large and Small Atwood Numbers. United States: N. p., 2004. Web. doi:10.2172/835137.
Malcolm J Andrews, Ph D. Detailed Measurements of Turbulent Rayleigh-Taylor Mixing at Large and Small Atwood Numbers. United States. doi:10.2172/835137.
Malcolm J Andrews, Ph D. Tue . "Detailed Measurements of Turbulent Rayleigh-Taylor Mixing at Large and Small Atwood Numbers". United States. doi:10.2172/835137. https://www.osti.gov/servlets/purl/835137.
@article{osti_835137,
title = {Detailed Measurements of Turbulent Rayleigh-Taylor Mixing at Large and Small Atwood Numbers},
author = {Malcolm J Andrews, Ph D},
abstractNote = {This project has two major tasks: Task 1. The construction of a new air/helium facility to collect detailed measurements of Rayleigh-Taylor (RT) mixing at high Atwood number, and the distribution of these data to LLNL, LANL, and Alliance members for code validation and design purposes. Task 2. The collection of initial condition data from the new Air/Helium facility, for use with validation of RT simulation codes at LLNL and LANL. Also, studies of multi-layer mixing with the existing water channel facility. Over the last twelve (12) months there has been excellent progress, detailed in this report, with both tasks. As of December 10, 2004, the air/helium facility is now complete and extensive testing and validation of diagnostics has been performed. Currently experiments with air/helium up to Atwood numbers of 0.25 (the maximum is 0.75, but the highest Reynolds numbers are at 0.25) are being performed. The progress matches the project plan, as does the budget, and we expect this to continue for 2005. With interest expressed from LLNL we have continued with initial condition studies using the water channel. This work has also progressed well, with one of the graduate Research Assistants (Mr. Nick Mueschke) visiting LLNL the past two summers to work with Dr. O. Schilling. Several journal papers are in preparation that describe the work. Two MSc.'s have been completed (Mr. Nick Mueschke, and Mr. Wayne Kraft, 12/1/03). Nick and Wayne are both pursuing Ph.D.s' funded by this DOE Alliances project. Presently three (3) Ph.D. graduate Research Assistants are supported on the project, and two (2) undergraduate Research Assistants. During the year two (2) journal papers and two (2) conference papers have been published, ten (10) presentations made at conferences, and three (3) invited presentations.},
doi = {10.2172/835137},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}