TWO-DIMENSIONAL MODEL OF EVOLUTION IN THE DC ARC PLASMA GENERATOR
A time dependent, two-dimensional model for simulating the plasma evolution in the DC arc plasma generator is conducted. The governing equations of a set of electrostatic magneto hydrodynamic (MHD) equations are solved by employing an efficient finite difference method. Up-wind schemes and uniform meshes in space are used in numerical simulation. The distributions and evolution of the density, velocity, temperature, electric potential, current density, etc. of the arc plasmas of two kinds of cathode model are computed. The influence of the cathode shape in arc plasma generator is investigated. The results show that the conical cath-ode produces bigger current density and ionizes more efficiently than rod cathode in same geometry and operating conditions. But the former easily bring on the computing instability. The simulating results can be used to address designing the device for big current arc plasma generator.
SHU ZHENG YUE LIU YE GONG
State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams,Dalian University of Technology, Dalian, Liaoning Province, 116024, China
国际会议
The Joint Conference of ICCP6 and CCP2003(第6届国际计算伦理会议)
北京
英文
389-392
2004-05-23（万方平台首次上网日期，不代表论文的发表时间）