Optimization of magnetic field design for Hall thrusters based on a genetic algorithm

作     者：谭睿 杭观荣 王平阳 Rui TAN;Guanrong HANG;Pingyang WANG

作者机构：School of Mechanical EngineeringShanghai Jiaotong UniversityShanghai 200240People’s Republic of China Division of Electric PropulsionShanghai Institute of Space PropulsionShanghai 201112People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2024年第26卷第7期

页      面：82-92页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：funded by Shanghai Natural Science Foundation(No.12ZR1414700) 

主　　题：magnetic field design genetic algorithm divergence angle erosion of discharge channel convergent magnetic field 

摘      要：Magnetic field design is essential for the operation of Hall *** study focuses on utilizing a genetic algorithm to optimize the magnetic field configuration of SPT70.A 2D hybrid PIC-DSMC and channel-wall erosion model are employed to analyze the plume divergence angle and wall erosion rate,while a Farady probe measurement and laser profilometry system are set up to verify the simulation *** results demonstrate that the genetic algorithm contributes to reducing the divergence angle of the thruster plumes and alleviating the impact of high-energy particles on the discharge channel wall,reducing the erosion by 5.5%and 2.7%,*** analysis indicates that the change from a divergent magnetic field to a convergent magnetic field,combined with the upstream shift of the ionization region,contributes to the improving the operation of the Hall thruster.