Changing rules of plume pattern and thermal characteristics in discharge modes of hollow cathodes

doi:10.16708/j.cnki.1000-758X.2022.0068

Abstract

Abstract: There are mainly two discharge modes in hollow cathodes，namely the spot mode and the plume mode.In order to study the transition mechanisms of the two modes，a hybrid model of the PIC（particle in cell）/PCD（plasma and chemical dynamics）was established.This model can solve the plasma parameter distribution in the hollow cathodes，and the heat radiation process can be solved by the radiation transportation coefficient.The solution can be converged after several iterations of the flow-heat coupling calculation.To verify the accuracy of the numerical model，the comparison of the calculation and test results of the 5 measurements on the cathode surface was conducted by a discharge test，and the relative error was less than 5%.Meanwhile，the comparison of the calculated color patterns and the photographs of the cathode plume showed that the numerical model could qualitatively capture the transition of the discharge mode.Based on those，the plasma parameters of the hollow cathode were solved with the PIC/PCD model under the condition of different gas flow rates and different orifice diameters.The mechanisms of the transition mode of the spot-plume discharge were obtained by analyzing the rules of the anode voltage and the plume pattern.This paper can provide the theoretical support for the cathode optimization design.

Key words: , hollow cathode；discharge mode；PIC/PCD；plume pattern；optimization design

YU Bo, XU Yanan, KANG Xiaolu. Changing rules of plume pattern and thermal characteristics in discharge modes of hollow cathodes[J]. Chinese Space Science and Technology, 2022, 42(5): 65-77.

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: http://journal26.magtechjournal.com/kjkxjs/EN/10.16708/j.cnki.1000-758X.2022.0068

http://journal26.magtechjournal.com/kjkxjs/EN/Y2022/V42/I5/65

[1]	ZOU Xin, PENG Jing, MIAO Yuanming. Research and prospect of scientific exploration for Jovian system [J]. Chinese Space Science and Technology, 2023, 43(6): 1-10.
[2]	SUN Jingyun, ZHANG Guoting, LIU Zhen, GUO Jie, WANG Jin. Constellation coverage performance analysis based on Markov-ADC model [J]. Chinese Space Science and Technology, 2023, 43(5): 24-34.
[3]	YUN Chaoming, HU Min, RUAN Yongjing, XUE Wen. Internal anti-collision safety analysis of LEO largescale satellite constellation [J]. Chinese Space Science and Technology, 2023, 43(5): 35-45.
[4]	XI Chao, YANG Bo, WANG Jirong, LI Gong, ZHU Ruijie, YANG Xiao. DRL-based link planning algorithm for mega constellation satellite and TT&C [J]. Chinese Space Science and Technology, 2023, 43(5): 65-70.
[5]	ZHU Chao, ZHANG Wenming, HU Chengwei, TANG Zixin, LIANG Changchun, KONG Xu, LI Delun, WANG Youyu, ZENG Lei, ZHANG Xinrui. Maintenance system design and verification for space station manipulator end-effector [J]. Chinese Space Science and Technology, 2023, 43(5): 79-86.
[6]	DAI Wei, ZHANG Zhongyuan, LI Guangyu, HAN Wei. Grid convergence analysis for numerical simulation of propellant reposition process in vane-type surface tension tank [J]. Chinese Space Science and Technology, 2023, 43(4): 85-92.
[7]	WANG Shuai, LIU Xiangyang, ZHAO Zijing, GUO Haoran, GENG Jinyue, SHEN Yan, WANG Ningfei. Probe diagnosis of plume of micro-cathode arc thruster [J]. Chinese Space Science and Technology, 2023, 43(2): 47-54.
[8]	LYU Jiahang, LI Qian, HU Dingkun, LUO Haotian, ZOU Xinyue. Mechanical model for lunar surface sampling based on modular theory [J]. Chinese Space Science and Technology, 2023, 43(2): 63-72.
[9]	LI Shenglin, LIU Bo, ZHAO Ben, LI Dacheng, WANG Yuheng, GUO Fengyun. Landsat 8 land surface temperature product validation and analysis [J]. Chinese Space Science and Technology, 2023, 43(2): 174-182.
[10]	LIU Shiyuan, Zhang Ce, YIN Zhao, YANG Jinlu, YAO Wei, YANG Mengfei. Perspective of extraterrestrial carbon dioxide conversion and utilization technologies [J]. Chinese Space Science and Technology, 2022, 42(6): 1-11.
[11]	ZHANG Chengyue, QUAN Ronghui, ZHANG Haicheng. Dielectric surface charging potential inversion method based on BP neural network [J]. Chinese Space Science and Technology, 2022, 42(6): 134-139.
[12]	XUE Wen, HU Min, RUAN Yongjing, YUN Chaoming, SUN Tianyu. Analysis of the first stage deployment of Starlink constellation based on TLE [J]. Chinese Space Science and Technology, 2022, 42(5): 24-33.
[13]	ZHENG Kai, XIANG Yanchao, RAO Wei, ZHANG Bingqiang, XUE Shuyan, DAI Chenghao, ZHANG Dong, WANG Yuying. Design and verification of thermal control system for Tianwen-1 Mars entry capsule [J]. Chinese Space Science and Technology, 2022, 42(5): 108-116.
[14]	WANG Jue, WANG Min, GUO Tingting, ZHONG Xiaoqing, WEN Zheng, WEI Xin. Feasibility study of spacecraft gravity center offset compensation by intentional xenon temperature control [J]. Chinese Space Science and Technology, 2022, 42(2): 39-45.
[15]	LAN Tian, GUO Jian, ZHANG Hongjun, DONG Zhenhui, WEI Yongquan. An onboard time acquisition method for spacecraft [J]. Chinese Space Science and Technology, 2021, 41(4): 111-120.

Changing rules of plume pattern and thermal characteristics in discharge modes of hollow cathodes

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments