Modelling of streamer propagation in atmospheric-pressure helium plasma jets
Modelling of streamer propagation in atmospheric-pressure helium plasma jets
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DOI：
10.1088/0022-3727/43/40/402001
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发表时间：
2010-10-13
影响因子：
3.4
通讯作者：
Naidis, G. V.
中科院分区：
文献类型：
--
作者：
Naidis, G. V.
介绍了注入环境空气的大气压氦射流中正流光传播的二维数值模拟结果。结果表明，根据射流宽度和电子数密度的初始径向分布，可以形成两种类型的流光结构：一种在射流轴处具有电场和电子密度的最大值，另一种在射流与周围空气之间的边界附近具有这些参数的最大值。后一种结构类似于观察到的等离子子弹的环形结构。
The results of a two-dimensional numerical simulation of positive streamer propagation in atmospheric-pressure helium jets injected into ambient air are presented. It is shown that depending on the jet width and the initial radial distribution of electron number density streamer structures of two types can be formed: one with maxima of electric field and electron density at the jet axis and another with maxima of these parameters near the boundary between the jet and surrounding air. The latter structure is similar to the observed ring-shaped structures of plasma bullets.