摘要
建立了小电流真空电弧的双温度磁流体动力学模型,根据该模型首先对小电流真空电弧的基本特性进行了仿真研究,分析了不同电弧电流和不同纵向磁场强度对小电流真空电弧特性的影响。仿真结果表明,电弧电流和纵向磁场对小电流真空电弧特性的影响是明显的,仿真结果与实验结果基本吻合,尤其是离子温度的仿真结果与实验更加接近。另外,仿真结果还表明,对于小电流真空电弧而言,随着纵向磁场的增大,电子温度逐渐增大,变化趋势与实验结果一致。
In this paper, two-temperature magnetohydrodynamic （MHD） model of low current vacuum arc （LCVA） is established. According to this model, at first, fundamental characteristics of LCVA are simulated and analyzed. Then, the influence of arc current and axial magnetic field on LCVA characteristics is simulated and analyzed. Simulation results show that the influence of arc current and axial magnetic field on LCVA characteristics is significant, and the simulation results are in agreement with the experimental results, especially for ion temperature. In addition, simulation results also show that for LCVA electron temperature increases with the increase of axial magnetic field strength, this trend is also in agreement with the experimental results.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第1期54-61,共8页
Transactions of China Electrotechnical Society
关键词
小电流真空电弧
数值仿真
纵向磁场
电弧电流
Low current vacuum arc, numerical simulation, axial magnetic field, arc current
