期刊
PLASMA SOURCES SCIENCE & TECHNOLOGY
卷 29, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6595/ab87b6
关键词
streamer discharge; photoionization; 3D simulation
资金
- Research Council of Norway [245422]
- ABB AS, Norway
Streamer discharges are thin plasma channels that precede lightning and sparks. They usually evolve in bundles as stochastic tree-like structures and are inherently difficult to model due to their multiscale nature. In this paper, we perform a computer investigation of positive streamer discharges in air using contemporary photoionization models. We report on three-dimensional computer simulations under conditions that are available in laboratory spark-gap experiments. The solutions demonstrate a multiscale morphology consisting of streamer fluctuations, branching, and the formation of a discharge tree. Some branches are comparatively thick and noisy, while others are thin, smooth, and carry electric fields exceeding 250 kV cm(-1) at their tips. Our results are consistent with past experiments and clarify the puzzling branching dynamics and stochastic morphology of positive streamer discharges.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据