Simulations of radiative effects on the Rayleigh–Taylor instability using the CRASH code

Future experiments at the National Ignition Facility will be able to generate diagnosable Rayleigh–Taylor instability growth in the presence of locally generated, high radiation fluxes. This interplay of radiative energy transfer and hydrodynamic instability is relevant to many astrophysical systems...

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Bibliographic Details
Published inHigh energy density physics Vol. 9; no. 2; pp. 303 - 308
Main Authors Trantham, M.R., Kuranz, C.C., Malamud, G., Grosskopf, M.J., Myra, E.S., Drake, R.P., Miles, A.R., Park, H.-S., Remington, B.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2013
Subjects
Hydrodynamic instability
Laboratory astrophysics
National Ignition Facility
Radiation hydrodynamics
Radiative shocks
Radiative shocks
National Ignition Facility
Radiation hydrodynamics
Laboratory astrophysics
Hydrodynamic instability
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Summary:Future experiments at the National Ignition Facility will be able to generate diagnosable Rayleigh–Taylor instability growth in the presence of locally generated, high radiation fluxes. This interplay of radiative energy transfer and hydrodynamic instability is relevant to many astrophysical systems, such as core-collapse red supergiant supernovae. Previous simulations of high-energy-density Rayleigh–Taylor instabilities in the presence of a hot environment near a radiative shock demonstrate behavior that differs from that found in non-radiative cases. However, these simulations considered only 1D or single wavelength cases. Here we report simulations of an entire experimental system using the CRASH code. These simulations lead to modified predictions, attributed to the effects of radial energy losses.
ISSN:1574-1818
1878-0563
DOI:10.1016/j.hedp.2012.12.016