Markus Flaig


Design Study for Diverging Supernova Explosion Experiment of NIF


We report on design simulations for the DivSNRT experiment, which is a spherically-diverging Rayleigh-Taylor experiment scaled to the physical conditions in core-collapse supernovae and which will be carried out at the National Ignition Facility (NIF). The simulations are done in cylindrical geometry, using the block-AMR multi-group radiative diffusion hydrodynamics codes CRASH and FLASH. We assess the sensitivity of the Rayleigh- Taylor instability growth on numerical discretization effects, variations in the laser drive energy and the manufacturing noise at the material interface. Future simulations will be used to study the self-generation of magnetic fields and how these affect the experimental outcome.