A hypersonic plasma bullet train traveling in an atmospheric dielectric-barrier discharge jet

被引：175

作者：

Shi, Jianjun ^{[1
]}

Zhong, Fangchun ^{[1
]}

Zhang, Jing ^{[1
]}

Liu, D. W. ^{[2
]}

Kong, M. G. ^{[2
]}

机构：

[1] Donghua Univ, Coll Sci, Shanghai 201620, Peoples R China

[2] Univ Loughborough, Dept Elect & Elect Engn, Loughborough LE11 3TU, Leics, England

来源：

PHYSICS OF PLASMAS | 2008年 / 15卷 / 01期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2828551

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：

An experimental observation of fast-moving plasma bullets produced in an atmospheric dielectric-barrier discharge jet is reported in this paper. Nanosecond imaging suggests that the atmospheric discharge jet consists of a plasma bullet train traveling at a hypersonic speed from 7.0 km/s to 43.1 km/s. Yet on a millisecond scale, the bullet train appears as a plasma jet of several centimeters long. The plasma bullets are produced through several possible mechanisms, the most likely of which is related to the ionization wave. Time and space resolved optical emission spectroscopy show that reactive plasma species can be delivered to different spatial sites with varying quantities.

引用

页数：5

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