Experimental study of the effect of argon on the restrike characteristics of nitrogen arc

doi:10.1088/1361-6595/ac8db9

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Experimental study of the effect of argon on the restrike characteristics of nitrogen arc
	Shao K(邵科); Sun, Su-Rong ; Meng X(孟显); Huang HJ(黄河激); 胡亚豪 Wang, Hai-Xing
刊名	PLASMA SOURCES SCIENCE & TECHNOLOGY ; 9
	2022-09
卷号	31 页码:95008
关键词	restrike mode nitrogen arc argon electric field
ISSN号	0963-0252
DOI	10.1088/1361-6595/ac8db9
英文摘要	The arc restrike process is a typical mode of operation within a direct current arc plasma torch. By using a transfer arc device with a planar anode parallel to the gas flow direction, the effect of argon addition on the disappearance of downstream old arc roots, the overall arc downstream movement process and the generation of upstream new arc roots of the nitrogen arc restrike process is experimentally investigated. The experimental results show that for pure nitrogen arc, the restrike frequency is very high and the old arc root disappears very quickly. The addition of argon will significantly decrease the temperature of the arc root and prolong the coexistence time of the old and new arc roots. This phenomenon is caused by the rapid decay of charged particle density in the nitrogen arc, because the recombination process of charged particles in the nitrogen arc is faster than that in the argon arc. The breakdown field strength at the upstream location where the new arc root occurs is calculated by combining the measurements of arc voltage, arc grayscale image and temperature. The results show that as the percentage of argon increases, the boundary layer thickness becomes thinner and the critical electric field strength required for arc breakdown decreases, leading to the generation of new arc roots more likely to occur toward the upstream location. This study improves the understanding of the effect of argon on the nitrogen arc restrike process.
学科主题	Physics, Fluids & Plasmas
分类号	一类
语种	英语
WOS记录号	WOS:000853987400001
资助机构	National Natural Science Foundation of China [11735004, 12005010, 12175011] ; Fundamental Research Funds for the Central Universities [YWF-22-L-1243] ; State Key Laboratory of High-temperature Gas Dynamics, Chinese Academy of Sciences [2021KF08]
其他责任者	Sun, SR ; Wang, HX (corresponding author), Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China. ; Wang, HX (corresponding author), Beihang Univ, Ningbo Inst Technol, Ningbo 315800, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90214]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Beihang Univ, Ningbo Inst Technol, Ningbo 315800, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.Huang, He-Ji 4.Meng, Xian 5.Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China 6.Hu, Ya-Hao 7.Sun, Su-Rong 8.[Shao, Ke
推荐引用方式 GB/T 7714	Shao K,Sun, Su-Rong,Meng X,et al. Experimental study of the effect of argon on the restrike characteristics of nitrogen arc[J]. PLASMA SOURCES SCIENCE & TECHNOLOGY, 9,2022,31:95008.
APA	邵科,Sun, Su-Rong,孟显,黄河激,&胡亚豪 Wang, Hai-Xing.(2022).Experimental study of the effect of argon on the restrike characteristics of nitrogen arc.PLASMA SOURCES SCIENCE & TECHNOLOGY,31,95008.
MLA	邵科,et al."Experimental study of the effect of argon on the restrike characteristics of nitrogen arc".PLASMA SOURCES SCIENCE & TECHNOLOGY 31(2022):95008.