中国空间科学技术2016，Vol.36Issue(1)：51-57,7.DOI:10.3780/j.issn.1000-758X.2016.0010
霍尔推力器预电离对低频振荡及壁面腐蚀影响的研究
Effect of pre-ionization on low frequency oscillation and wall corrosion in Hall thrusters
摘要
Abstract
With the proposed of ATON-Hall thrusters,a series of studies were carried out based on pre-ionization phenomenon in buffer.However,the selection of pre-ionization rate is still inconclusive.Therefore,two-dimensional axisymmetric full particle PIC (Fully-kinetic Particle-In-Cell)simulations were carried out based on the real size of SPT-100 Hall thruster to simulate the discharge process in the discharge chamber.The relations between and among pre-Ionization rate,low frequency oscillation in the discharge channel and wall corrosion of Hall thruster were mainly studied. The simulation results show that increasing the pre-ionization rate in the buffer chamber can effectively suppress low frequency oscillation,and improve the performance of the propeller.But at the same time,the increase of the energy of ion impacting on the channel surface aggrevates the corrosion of the surface,and shorten the propeller's shorten service life.关键词
霍尔推力器/缓冲区预电离/低频振荡/壁面腐蚀Key words
Hall thruster/buffer pre-ionization/low frequency oscillation/wall corrosion分类
航空航天引用本文复制引用
权路路,邢伟,鹿畅,龚科瑜,曹勇..霍尔推力器预电离对低频振荡及壁面腐蚀影响的研究[J].中国空间科学技术,2016,36(1):51-57,7.基金项目
国家自然科学基金 (10875034,11175052) （10875034,11175052）
深圳市科技计划 (JCYJ20150403161923511,ZDSYS0140508161547829) （JCYJ20150403161923511,ZDSYS0140508161547829）
