Laser-Plasma Modeling Using Perseus Extended-Mhd Simulation Code For Hed Plasmas
2017 IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS)（2017）
摘要
We discuss the use of the PERSEUS extended-MHD simulation code for high-energy-density (HED) plasmas in modeling laser-plasma interactions in relativistic and nonrelativistic regimes. By formulating the fluid equations as a relaxation system in which the current is semi-implicitly time-advanced using the Generalized Ohm’s Law, PERSEUS enables modeling of two-fluid phenomena in dense plasmas without the need to resolve the smallest electron length and time scales. For several laser-target problems in which an ablation plume is generated in the presence of an applied magnetic field, we compare existing experimental and MHD simulation results to extended-MHD results generated using PERSEUS, and examine effects arising from Hall physics.
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关键词
smallest electron length,time scales,laser-target problems,laser-plasma modeling,laser-plasma interactions,relativistic regimes,nonrelativistic regimes,dense plasmas,HED plasmas,high-energy-density plasmas,PERSEUS extended-MHD simulation code,fluid equations,semiimplicitly time-advanced current,generalized Ohm's law,two-fluid phenomena,ablation plume,applied magnetic field,Hall physics
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