The residual streamer channel: Return strokes and secondary streamers
The residual streamer channel: Return strokes and secondary streamers
复制标题
DOI：
10.1063/1.334126
复制
发表时间：
1984-09
影响因子：
3.2
通讯作者：
R. S. Sigmond
中科院分区：
文献类型：
--
作者：
R. S. Sigmond
回顾了正电晕击穿中的流注和回击概念，并对环境空气中短间隙（<5 cm）的情况进行了严格的检查。结果表明，返回冲程通常不应该被观察到，但返回拖缆可能发生在较长或高度overvolted拖缆通道。一个新的物理图片的二次流光，作为一个或几个高场域形成的道格拉斯-汉密尔顿-马尼-型附着不稳定性的残留通道所创建的通过的主要流光。以这种方式，容易解释二次流光在空气中的不稳定起源和发展，以及如果和当二次流光充满整个剩余通道长度时火花击穿的事实。此外，由此可见，二次流光不是击穿的原因，而只是二次副作用。
The streamer and return stroke concepts in positive corona breakdown are reviewed, and examined critically for the case of short (<5 cm) gaps in ambient air. It is shown that return strokes normally should not be observed, but that return streamers may occur in longer or highly overvolted streamer channels. A new physical picture is presented of the secondary streamer, as one or several high field domains formed by Douglas‐Hamilton–Mani‐type attachment instability of the residual channel created by the passage of the primary streamer. In this way, both the erratic origin and development of the secondary streamer in air are easily explained, as well as the fact that spark breakdown follows if and when the secondary streamer fills the complete residual channel length. Further, it follows that the secondary streamer is not the cause of breakdown, but only a secondary side effect.