Arc plasmas have promising applications in many fields, and exploring their properties is of interest. This research paper presents detailed pressure-based finite volume simulations of an argon arc. Simulations of the free-burning argon arc show good agreement with experiment. We observe an interesting phenomenon that an argon arc concentrates intensively in a high-frequency alternating longitudinal magnetic field. This is different from existing constricting mechanisms, as here the arc is pinched through continuous dynamic transitions between shrinking and expansion. The underlying mechanism is that via working together with an arc's motion inertia, the applied high-frequency alternating magnetic field is able to effectively play a “plasma trap” role, which leads the arc plasma to be confined to a narrower space. This finding may provide a new approach to constrict arc plasmas.
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Pinching arc plasmas by high-frequency alternating longitudinal magnetic field
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July 2022
Research Article|
July 15 2022
Pinching arc plasmas by high-frequency alternating longitudinal magnetic field

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2022 Early Career Collection
Xiaoliang Wang
;
Xiaoliang Wang
a)
1
School of Nuclear Science and Technology, University of Science and Technology of China
, Hefei 230026, China
2
College of Life Sciences, Zhejiang University
, Hangzhou 310058, China
a)Authors to whom correspondence should be addressed: wxliang@mail.ustc.edu.cn and jliuphy@ustc.edu.cn
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Andrew Harrison
;
Andrew Harrison
3
Department of Mathematical Sciences, University of Essex
, Colchester CO4 3SQ, United Kingdom
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Yunlong Chang;
Yunlong Chang
4
School of Materials Science and Engineering, Shenyang University of Technology
, Shenyang 110870, China
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Jian Liu
Jian Liu
a)
1
School of Nuclear Science and Technology, University of Science and Technology of China
, Hefei 230026, China
5
Advanced Algorithm Joint Lab, Shandong Computer Science Center, Qilu University of Technology
, Jinan 250014, China
a)Authors to whom correspondence should be addressed: wxliang@mail.ustc.edu.cn and jliuphy@ustc.edu.cn
Search for other works by this author on:
a)Authors to whom correspondence should be addressed: wxliang@mail.ustc.edu.cn and jliuphy@ustc.edu.cn
Phys. Plasmas 29, 073506 (2022)
Article history
Received:
December 30 2021
Accepted:
June 13 2022
Citation
Xiaoliang Wang, Andrew Harrison, Yunlong Chang, Jian Liu; Pinching arc plasmas by high-frequency alternating longitudinal magnetic field. Phys. Plasmas 1 July 2022; 29 (7): 073506. https://doi.org/10.1063/5.0083796
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