Numerical study on an atmospheric pressure helium discharge propagating in a dielectric tube: influence of tube diameter

Zhoutao SUN (孙洲涛); Wen YAN (晏雯); Longfei JI (季龙飞); Zhenhua BI (毕振华); Ying SONG (宋颖); Dongping LIU (刘东平)

doi:10.1088/2058-6272/aab3d2

Plasma Science and Technology > 2018 > 20(8): 85401-085401. > DOI: 10.1088/2058-6272/aab3d2

Zhoutao SUN (孙洲涛), Wen YAN (晏雯), Longfei JI (季龙飞), Zhenhua BI (毕振华), Ying SONG (宋颖), Dongping LIU (刘东平). Numerical study on an atmospheric pressure helium discharge propagating in a dielectric tube: influence of tube diameter[J]. Plasma Science and Technology, 2018, 20(8): 85401-085401. DOI: 10.1088/2058-6272/aab3d2

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Numerical study on an atmospheric pressure helium discharge propagating in a dielectric tube: influence of tube diameter

School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, People’s Republic of China

Funds: This work was supported by National Natural Science Foundation of China (Nos.11705022, 11505025, 11705023), Innovation and Entrepreneurship Plan of Dalian Nationalities University (school-level A?+?Nos. 201712026380).

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Received Date: January 08, 2018

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Abstract

In this work, a two-dimensional numerical simulation of the discharge characteristics of helium plasma propagating inside a dielectric tube was performed. A trapezoidal +9 kV pulse lasting 400 ns was applied on a needle electrode set inside the dielectric tube to ignite the discharge. The discharges generated in the tubes with a variable or a constant inner diameter were investigated. The focus of this study was on clarifying the effect of the tube diameter on the discharge structure and dynamics. The comparison of the discharge characteristics generated in dielectric tubes with different diameters was carried out. It was shown that the tube diameter plays a significant role in discharge behavior of plasma propagating in the dielectric tube.
- atmospheric pressure,
- helium discharges,
- discharge front,
- numerical simulation

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Numerical study on an atmospheric pressure helium discharge propagating in a dielectric tube: influence of tube diameter

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