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

被引：4

作者：

Sun, Zhoutao ^{[1
]}

Yan, Wen ^{[1
]}

Ji, Longfei ^{[1
]}

Bi, Zhenhua ^{[1
]}

Song, Ying ^{[1
]}

Liu, Dongping ^{[1
]}

机构：

[1] Dalian Nationalities Univ, Sch Phys & Mat Engn, Dalian 116600, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2018年 / 20卷 / 08期

基金：

中国国家自然科学基金;

关键词：

atmospheric pressure; helium discharges; discharge front; numerical simulation;

D O I：

10.1088/2058-6272/aab3d2

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

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.

引用

页数：7

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