One-Dimensional Magneto-Hydrodynamic Simulation of Plasma Opening Switch

Preliminary results of an one-dimensional numerical code designed to investigate the magnetic field thrust effects in plasma opening switch are presented. The code is based on the magneto-hydrodynamic equations, and the current into the switch is given as a known condition. The plasma development on the axial direction is calculated. Also plasma density at different moment during the opening process is described. It is pointed out that the Hall effect plays a predominant role in the abnormal penetration of magnetic field.