Three- and two-dimensional simulations of counter-propagating shear experiments at high energy densities at the National Ignition Facility
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Three- and two-dimensional numerical studies have been carried out to simulate recent counter-propagating shear flow experiments on the National Ignition Facility. A multi-physics three-dimensional, time-dependent radiation hydrodynamics simulation code is used. Using a Reynolds Averaging Navier-Stokes model, we show that the evolution of the mixing layer width obtained from the simulations agrees well with that measured from the experiments. A sensitivity study is conducted to illustrate a 3D geometrical effect that could confuse the measurement at late times, if the energy drives from the two ends of the shock tube are asymmetric. Implications for future experiments are discussed.
- OSTI ID:
- 22489844
- Journal Information:
- Physics of Plasmas, Vol. 22, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASYMMETRY
COMPUTERIZED SIMULATION
ENERGY DENSITY
EXPERIMENTAL DATA
HYDRODYNAMICS
MIXING
NAVIER-STOKES EQUATIONS
NUMERICAL ANALYSIS
REYNOLDS NUMBER
SENSITIVITY ANALYSIS
SHEAR
SHOCK TUBES
THREE-DIMENSIONAL CALCULATIONS
TIME DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS
US NATIONAL IGNITION FACILITY
ASYMMETRY
COMPUTERIZED SIMULATION
ENERGY DENSITY
EXPERIMENTAL DATA
HYDRODYNAMICS
MIXING
NAVIER-STOKES EQUATIONS
NUMERICAL ANALYSIS
REYNOLDS NUMBER
SENSITIVITY ANALYSIS
SHEAR
SHOCK TUBES
THREE-DIMENSIONAL CALCULATIONS
TIME DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS
US NATIONAL IGNITION FACILITY