物理
等离子体
原子物理学
合并(版本控制)
氦
电压
大气压等离子体
电子密度
大气压力
机械
计算物理学
核物理学
气象学
情报检索
计算机科学
量子力学
作者
Wen Yan,Fucheng Liu,Chaofeng Sang,Dezhen Wang
出处
期刊:Physics of Plasmas
[American Institute of Physics]
日期:2014-06-11
卷期号:21 (6): 063505-063505
被引量:17
摘要
In this paper, a computational study of two counter-propagating helium plasma jets in ambient air is presented. A two-dimensional fluid model is applied to investigate the physical processes of the two plasma jets interaction (PJI) driven by equal and unequal voltages, respectively. In all studied cases, the PJI results in a decrease of both plasma bullets propagation velocity. When the two plasma jets are driven by equal voltages, they never merge but rather approach each other around the middle of the gas gap at a minimum approach distance, and the minimal distance decreases with the increase of both the applied voltages and initial electron density, but increases with the increase of the relative permittivity. When the two plasma jets are driven by unequal voltages, we observe the two plasma jets will merge at the position away from the middle of the gas gap. The effect of applied voltage difference on the PJI is also studied.
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