For high-current vacuum arcs, the plasma flow is in the subsonic status, so the boundary conditions of cathode side and anode side will be different from that of supersonic vacuum arcs.

• 对于大电流真空电弧而言,等离子体的流动处于亚音速状态,因此,在阴极和阳极边界条件的选择上将区别于超音速流动的真空电弧。