Discrete Boltzmann modeling of plasma shock wave

Plasma shock waves widely exist and play an important role in high-energy-density environment, especially the inertial confinement fusion. Due to large gradient of macroscopic physical quantities coupled thermal, electrical, magnetic, optical phenomena, there not only hydrodynamic non-equilibrium (HNE) effects but also strong thermodynamic (TNE) around wavefront. In this work, a two-dimensional single-fluid discrete Boltzmann model is proposed investigate structure ion shock. The electron assumed inertialess always equilibrium. Rankine–Hugoniot relations for theory plasma wave derived. It found that significantly different from normal fluid somewhat similar detonation sense peak appears front. front become stronger with increasing Mach number. charge electricity deviates oppositely neutrality upstream downstream wave. inertia ions causes them lag behind, so wavefront negative waverear positive. variations HNE TNE number are numerically investigated. characteristics can be used distinguish