Hybrid fluid–particle modeling of shock-driven hydrodynamic instabilities in a plasma

Shock-driven hydrodynamic instabilities in a plasma usually lead to interfacial mixing and the generation of electromagnetic fields, which are nonequilibrium processes coupling kinetics with meso- macroscopic dynamics. The understanding modeling these physical very challenging tasks for single-fluid codes. This work presents new framework that incorporates both hydrodynamics simulate shock waves high-density plasmas. In this hybrid code, ions modeled using standard particle-in-cell method together Monte Carlo description collisions while electrons as massless fluid, electron heat flux fluid–particle energy exchange being considered pressure equation. plasmas, Maxwell’s equations solved Ohm’s law instead Ampère’s law. algorithm retains ion kinetic effects their consequences interpenetration, wave propagation, instability. Furthermore, we investigate shock-induced (or gravity-induced) turbulent between light heavy plasma, where initiated by gravity). study reveals self-generated fields play role formation baroclinic vorticity along interface late-time Our results confirm ability proposed describe shock-driven particular, involve at interface.