Streamer propagation in atmospheric-pressure air: effect of the pulse voltage rise rate from 0.1 to 100 kV ns<sup>?1</sup> and streamer inception voltage
Streamer propagation in atmospheric-pressure air: effect of the pulse voltage rise rate from 0.1 to 100 kV ns<sup>?1</sup> and streamer inception voltage
复制标题
常压空气中的流光传播：0.1 至 100 kV ns<sup>?1</sup> 脉冲电压上升率和流光起始电压的影响
DOI：
10.1088/1361-6463/ac0b0f
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Ono Ryo
中科院分区：
文献类型：
--
作者：
Komuro Atsushi;Ryu Terumasa;Yoshino Akihiro;Namihira Takao;Wang Douyan;Ono Ryo
本研究利用数值模拟研究了0.1 kV ns-1至100 kV ns-1的电压上升率对大气压下空气中流光放电的影响。针电极的曲率也被用作输入参数，以在流光传播期间改变流光起始电压和平均电压Vave。结果表明，流光传播速度vpri、流光头部的电场强度Eh、流光通道直径以及一次流光传播过程中O自由基的产生特性都依赖于Vave。v pri和Eh对V ave/d的影响不同，其中d为电极的差距距离，表明流注保持在从顺应型放电到扩散型放电的过渡状态。仿真结果与实验结果的对比表明，无论电压波形和电极配置如何，仿真的v pri特性与实验结果吻合较好，这表明V ave/d与一次流光特性具有较强的相关性。
This study investigates the effects of voltage rise rates from 0.1 kV ns− 1 to 100 kV ns− 1 on streamer discharge in air at atmospheric pressure using numerical simulation. The curvature of the needle electrode is also used as an input parameter to change the streamer inception voltage and the average voltage, V ave, during streamer propagation. The results show that the streamer propagation velocity, v pri, the electric field strength at the streamer head, E h, the diameter of the streamer channel, and the O radical production characteristics during the primary streamer propagation are dependent on V ave. v pri and E h exhibit different effects on V ave/d, where d is the gap distance of the electrode, which indicates that the streamer remains in the transient state from the filament-type discharge to the diffuse-type discharge. The comparison between the simulation and experimental results shows that the simulated v pri characteristics are in good agreement with the experimental results, regardless of the voltage waveform and electrode configuration, which indicates that V ave/d has a strong correlation with the primary streamer characteristics.