Effect of the cation-to-anion mass ratio of ionic liquid on plume neutralization characteristics for novel electrospray thruster

doi:10.1088/1361-6595/ad99ff

	Effect of the cation-to-anion mass ratio of ionic liquid on plume neutralization characteristics for novel electrospray thruster
	Han, Meiting 1; He, Jiahui 1,2; Meng BQ(孟宝清)3,4; Tian, Baolin5 ; Li, Jianling 1
通讯作者	Li, Jianling([email protected])
发表期刊	PLASMA SOURCES SCIENCE & TECHNOLOGY
	2024-12-01
卷号	33 期号:12 页码:18
ISSN	0963-0252
摘要	The ionic liquid electrospray thruster (ILET), a promising technology for space electric propulsion, has been gaining attention due to its theoretical capability to operate without an external neutralizer, which is a key component for traditional ion thrusters. Some experiments have shown that the cation-to-anion mass ratio significantly affects the self-neutralization of thruster plumes, but further depth research is still needed. Therefore, numerical simulations of ion emission process both in uni-thruster and bi-thruster modes of ILETs are conducted using particle-in-cell method, to investigate the effect of the cation-to-anion mass ratio in ionic liquid on plume neutralization characteristics. In bi-thruster mode, the anions and cations are emitted simultaneously, while in uni-thruster mode, only anions or cations are emitted under the action of electric field force. Plume neutralization characteristics of four ionic liquid propellants, with different cation-to-anion mass ratio, in bi-thruster mode are obtained and compared to the uni-thruster mode. The results show that the plume profile morphology is significantly dependent on operating mode of the thruster and the cation-to-anion mass ratio of ionic liquid. Unlike the circular profile in uni-thruster mode, the plume in bi-thruster mode exhibit distortion with vertical stratification. The contours of the high-potential region in bi-thruster mode also distort, showing stratification and a V-shape, respectively, influenced by the mass ratio. Ion beam neutralization in bi-thruster mode is primarily achieved through the horizontal displacement of anion and cation beams, as well as their interactions. The cation-to-anion mass ratio influences the oscillation effects of the mass center in anion and cation clouds during neutralization, which in turn affects the neutralization effect. Ionic liquids with a significant mass ratio difference between cations and anions necessitate a longer time and greater distance for neutralization under identical conditions. These findings are instrumental for understanding the plume neutralization process and advancing the design of ILETs.
关键词	electrospray thruster plume neutralization particle-in-cell method pure ionic regime ionic liquids
DOI	10.1088/1361-6595/ad99ff
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001375965500001
关键词[WOS]	PERFORMANCE ; EMITTERS ; ARRAY
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China - 'Ye Qisun' Science Foundation Project[12472262] ; National Natural Science Foundation of China - 'Ye Qisun' Science Foundation Project[12432012] ; National Natural Science Foundation of China[XDB0620203] ; Strategic Priority Research Program of Chinese Academy of Sciences
项目资助者	National Natural Science Foundation of China - 'Ye Qisun' Science Foundation Project ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
论文分区	一类
力学所作者排名	3
RpAuthor	Li, Jianling
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/97802
专题	高温气体动力学国家重点实验室
作者单位	1.Northwestern Polytech Univ, Sch Power & Energy, Xian 710072, Peoples R China; 2.Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 5.Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Han, Meiting,He, Jiahui,Meng BQ,et al. Effect of the cation-to-anion mass ratio of ionic liquid on plume neutralization characteristics for novel electrospray thruster[J]. PLASMA SOURCES SCIENCE & TECHNOLOGY,2024,33,12,:18.Rp_Au:Li, Jianling
APA	Han, Meiting,He, Jiahui,孟宝清,Tian, Baolin,&Li, Jianling.(2024).Effect of the cation-to-anion mass ratio of ionic liquid on plume neutralization characteristics for novel electrospray thruster.PLASMA SOURCES SCIENCE & TECHNOLOGY,33(12),18.
MLA	Han, Meiting,et al."Effect of the cation-to-anion mass ratio of ionic liquid on plume neutralization characteristics for novel electrospray thruster".PLASMA SOURCES SCIENCE & TECHNOLOGY 33.12(2024):18.