Modeling the Kelvin-Helmholtz Instability in High-Energy-Density Experiments Using CRASH Code
Abstract
The Center for Radiative Shock Hydrodynamics (CRASH) at the University of Michigan is developing an AMR radiation-hydrodynamics code, which can model laser-driven experiments. One such experimental campaign on the OMEGA Laser at LLE is designed to replicate and diagnose the Kelvin-Helmholtz instability in a high-energy-density system. Experimental results have been reported using a design with CRF foam layered on top of polyamide-imide plastic, which have a sinusoidal perturbation at their interface and are encased in beryllium. CRASH simulations have modeled this experiment to validate the code in this regime, as well as to aid in the design of future Kelvin-Helmholtz experiments. We present the results of a series of CRASH simulations of the Kelvin-Helmholtz instability.
This work is funded by the Predictive Sciences Academic Alliances Program in NNSA-ASC via grant DEFC52-08NA28616.- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- October 2011
- Bibcode:
- 2011APS..DPPPP9138R