Simulation of Magnetically Dispersed Arc Plasma  

作　　者：白冰 査俊 张晓宁 王城 夏维东 

机构地区：[1]Department of Thermal Science and Energy Engineering,University of Science and Technology

出　　处：《Plasma Science and Technology》2012年第2期118-121,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos.50876101,11035005)

摘　　要：Magnetically dispersed arc plasma exhibits typically dispersed uniform arc column as well as diffusive cathode root and diffusive anode root. In this paper magnetically dispersed arc plasma coupled with solid cathode is numerically simulated by the simplified cathode sheath model of LOWKE . The numerical simulation results in argon show that the maximum value of arc root current density on the cathode surface is 3.5×10^7 A/m^2）, and the maximum value of energy flux on the cathode surface is 3× 10^7 J/m^2, both values are less than the average values of a contracted arc, respectively.Magnetically dispersed arc plasma exhibits typically dispersed uniform arc column as well as diffusive cathode root and diffusive anode root. In this paper magnetically dispersed arc plasma coupled with solid cathode is numerically simulated by the simplified cathode sheath model of LOWKE . The numerical simulation results in argon show that the maximum value of arc root current density on the cathode surface is 3.5×10^7 A/m^2）, and the maximum value of energy flux on the cathode surface is 3× 10^7 J/m^2, both values are less than the average values of a contracted arc, respectively.

关 键 词：magnetically dispersed arc plasma diffusive arc root CATHODE numericalsimulation 

分 类 号：O53[理学—等离子体物理]