A hypersonic plasma bullet train traveling in an atmospheric dielectric-barrier discharge jet
A hypersonic plasma bullet train traveling in an atmospheric dielectric-barrier discharge jet
复制标题
在大气介电势垒放电射流中行驶的高超音速等离子体子弹头列车
DOI：
10.1063/1.2828551
复制
发表时间：
2008-01-01
影响因子：
2.2
通讯作者：
Kong, M. G.
中科院分区：
文献类型：
--
作者：
Shi, Jianjun;Zhong, Fangchun;Kong, M. G.
本文报道了在大气压介质阻挡放电射流中产生的快速运动等离子体子弹的实验观测。纳秒成像显示，大气放电射流由一列高超声速的等离子体子弹头列车组成，速度从7.0公里/S到43.1公里/S。然而，在毫秒尺度上，子弹头列车看起来是几厘米长的等离子体射流。等离子体子弹是通过几种可能的机制产生的，其中最有可能的机制与电离波有关。时间和空间分辨的光学发射光谱表明，反应性等离子体物种可以以不同的量被输送到不同的空间位置。
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.