THE 2-D MHD EFFECT OF PLASMA ARMATURE SIMULATIED BY CE/SE METHOD

A two-dimensional inviscid magnetohydrodynamics (MHD) model is developed to investigate the interaction among the electric fields, magnetic fields and flow fields. The space-time conservation element and solution element (CE/SE) method is devised for solving the coupling Navier-Stokes equations and Maxwell equations, which has the advantages of simple algorithm, high precision and good stability. The distributions of physical parameters of the plasma may thus be evaluated. The results show that the Lorentz force is the main propulsion; high pressure and current density can be observed ahead of the projectile, and the distribution of temperature is in good agreement with the results predicted by the law of radiative heat transfer; due to convection, the internal flow is complex, and circulation patterns of velocity are evident. All the results help to the theoretical and experimental studies about the MHD problem of the plasma armature.