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Plasma Sci. Technol. ›› 2018, Vol. 20 ›› Issue (3): 035509.doi: 10.1088/2058-6272/aa9fe7

• Plasma Technology • Previous Articles     Next Articles

Simulation of the effect of a magnetically insulated anode on a low-power cylindrical Hall thruster

Yongjie DING (丁永杰)1, Hong LI (李鸿)1, Boyang JIA (贾伯阳)1,PengLI (李朋)1 , Liqiu WEI (魏立秋)1,3,YuXU (徐宇)1, Wuji PENG (彭武吉)1 Hezhi SUN (孙鹤芝)1, Yong CAO (曹勇)2 and Daren YU (于达仁)1   

  

  1. 1 School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of China 2 Harbin Institute of Technology (Shenzhen), Shenzhen 518055, People’s Republic of China
  • Received:2017-10-19 Published:2017-12-01
  • Supported by:

    The study was financially supported by National Natural Science Foundation of China (Grant Nos. 51777045 and 51477035) and Shenzhen Technology Project (Project Nos. JCYJ20160226201347750 and JCYJ20150529115038093).

Abstract:

The intersection point of the characteristic magnetic field line (CMFL) crossing the anode boundary with the discharge channel wall, and its influence on thruster performance and the energy and flux of ions bombarding the channel wall, have been studied numerically. The simulation results demonstrate that with the increase in distance from the crossover point of the CMFL with the channel wall to the bottom of the thruster channel, the ionization rate in the discharge channel gradually increases; meanwhile, the ion energy and ion current density bombarding the channel wall decreases. When the point of the CMFL with the channel wall is at the channel outlet, the thrust, specific impulse, and efficiency are at a maximum, while the ion energy and ion current density bombarding the channel wall are at a minimum. Therefore, to improve the performance and lifetime of the thruster, it is important to control the point of intersection of the CMFL with the channel wall.

Key words: magnetically insulated anode, cylindrical Hall thruster, performance