Development of a cathode-directed streamer discharge in air at different pressures: experiment and comparison with direct numerical simulation.
Development of a cathode-directed streamer discharge in air at different pressures: experiment and comparison with direct numerical simulation.
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DOI：
10.1103/physreve.71.016407
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发表时间：
2005-01
期刊：
影响因子：
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通讯作者：
Sergey Pancheshnyi;M. Nudnova;A. Starikovskii
中科院分区：
文献类型：
--
作者：
Sergey Pancheshnyi;M. Nudnova;A. Starikovskii
结果是对在压力范围内的阴极导向流液的实验研究中给出的，它们与2D流体动力近似中直接数值模拟的结果进行了比较。实验研究了压力变化时排出分支的模式。比较阳极电流，流媒体传播速度和通道直径的预测值和测量值的结果。已经证明，彩流器头部的电场几乎不受压力降低的影响，而电子浓度随压力下降的降低。同时，在阴极导向的流媒体排放中产生化学物种的产生至少是逆压力的第二功率的变化。
The results are given of an experimental investigation of a cathode-directed streamer discharge in synthetic air in the pressure range from 760 to 300 torr and their comparison with the results of direct numerical simulation in a 2D hydrodynamic approximation. The pattern of discharge branching upon variation of pressure is investigated experimentally. The results are given of comparison of the predicted and measured values of anode current, streamer propagation velocity, and channel diameter. It has been demonstrated that the electric field in the streamer head is hardly affected by the pressure decrease, while the electron concentration decreases with pressure by an order of magnitude. At the same time, production of chemical species in a cathode-directed streamer discharge varies at a rate of at least the second power of inverse pressure.