磁驱动电弧转移的热流场分析

Analysis for the heat flux transported by a alternating magnetically driven plasma

一个交变磁场被施加到一个转移的电弧上,以产生一个等离子体电弧来加热一个大的金属表面.电弧柱以交变电磁力的频率在金属表面振荡,外加磁场的大小控制振荡运动的摆动幅度.过强的磁场强度会使振荡电弧运动不稳定,电弧周围的气体流动对热流有很大的影响.

This paper advances that an alternating magnetic field is applied to a transferred arc in order to create a plasma arc for heating a large metal surface. The plasma arc oscillates on the metal surface at the frequency of alternating electromagnetic force . The amplitude of the oscillatory motion is controled the magnitude of the applied magnetic field. If the applied magnetic flux density is too strong , the oscillatory plasma arc motion is unstable. The heat flux is affected considerably by the neutral gas flow surrounding the arc.