Transitions between corona, glow, and spark regimes of nanosecond repetitively pulsed discharges in air at atmospheric pressure
Transitions between corona, glow, and spark regimes of nanosecond repetitively pulsed discharges in air at atmospheric pressure
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DOI：
10.1063/1.3309758
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发表时间：
2010-05
影响因子：
3.2
通讯作者：
D. Pai;D. Lacoste;C. Laux
中科院分区：
文献类型：
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作者：
D. Pai;D. Lacoste;C. Laux
在大气压空气预热从300至1000 K，纳秒重复脉冲（NRP）方法已被用于产生电晕，辉光和火花放电。实验已经完成，以确定参数空间（施加电压，脉冲重复频率，环境气体温度和电极间隙距离）的每个放电制度。特别是，确定了NRP放电发光状态所需的实验条件，并得到了在给定环境气体温度下存在最小和最大间隙距离的显著结果。最小间隙距离随气体温度的降低而增加，而最大值变化不明显。为了解释实验结果，建立了一个分析模型来解释电晕到辉光（C-G）和辉光到火花（G-S）的转变。从雪崩到流光的转变和建立后传导阶段的击穿场两个方面分析了C-G转变。
In atmospheric pressure air preheated from 300 to 1000 K, the nanosecond repetitively pulsed (NRP) method has been used to generate corona, glow, and spark discharges. Experiments have been performed to determine the parameter space (applied voltage, pulse repetition frequency, ambient gas temperature, and interelectrode gap distance) of each discharge regime. In particular, the experimental conditions necessary for the glow regime of NRP discharges have been determined, with the notable result that there exists a minimum and maximum gap distance for its existence at a given ambient gas temperature. The minimum gap distance increases with decreasing gas temperature, whereas the maximum does not vary appreciably. To explain the experimental results, an analytical model is developed to explain the corona-to-glow (C-G) and glow-to-spark (G-S) transitions. The C-G transition is analyzed in terms of the avalanche-to-streamer transition and the breakdown field during the conduction phase following the establish...