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研究了大气压下交流电弧等离子体温度场与入射颗粒的相互作用．在等离子体连续方程、能量方程中增加一项由颗粒直径及能焓变化引起的源项，对方程组进行无量纲化以及对弧柱边界进行迭代解决了交流电弧等离子体的动边界问题．计算了不同的颗粒入射量、颗粒半径、交流频率、初始弧柱半径和有无对流等五种情况．通过对铝颗粒和氩等离子体的计算表明：颗粒和交流电弧等离子体的相互作用对颗粒的加热历程和等离子体温度场都有重要影响．研究结果适用于交流频率范围10—100Hz.这个范围包括了大多数工业用交流电弧的频率.The interaction between particle and temperature fields of AC plasma arc is studied. Attention is given to the interaction and its effects on temperature fields and particle's thermal history. The effect of convection is also discussed. It is demonstrated that such interaction is improtant and the particle can increase the stability of arc column and the convection decrease it.
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