Author:
ZENG Demai,LI Hong,LIU Jinwen,DING Yongjie,WEI Liqiu,YU Daren,MAO Wei
Abstract
Abstract
It is assumed that the shift of a strong magnetic field region with a positive gradient from exit plane to outside, namely the transit from a normal loaded magnetic field to an aft-loaded one, enhances the multiple ionization process in the magnetically shielded Hall thruster. To confirm this conjecture, a comparative study is carried out numerically with a particle-in-cell method. The simulation results prove that compared with the normal loaded magnetic field, the application of aft-loaded magnetic field enhances the multiple ionization process. This study further analyzes the ionization characteristics of the transition from low-charged ions to high-charged ions under two magnetic field conditions and the influence of the magnetic strength of aft-loaded magnetic field on the multiple ionization characteristics. The study described herein is useful for understanding the discharge characteristics of Hall thruster with an aft-loaded magnetic field.
Funder
National Natural Science Foundation of China
Defense Industrial Technology Development Program
Civil Aerospace Technology Pre-research Project
Cited by
4 articles.
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