关键词: 电弧喷射发动机;磁流体动力流;流动分布;可压缩流;数值计算

Abstract: A time stepping scheme using four oder classical Runge Kutta method was used on internal plasma flow simulation for arcjet thruster after its validation for compressible flow calculation was studied.It showed that this scheme can be applied successfully on complex compressible gas flow calculation and plasma flow calculation when combining with several acceleration techniques such as local time step and implicit residual smoothing.The gas flows without electric flow and the plasma flow with electric flow throughout arcjet thruster channel were calculated and plenty of flow structures and several important affecting factors of these flowfields were revealed.

Key words: Arc jet engine;Magnetohydrodynamic flow;Flow distribution;Compressible flow;Numerical calculation