拖缆的多尺度性质
The multiscale nature of streamers
摘要:
流光是大气体体积电击穿的一般模式。它们在火花和闪电的初始阶段、技术电晕反应器和雷暴云上方的高空精灵放电中发挥作用。流光的特点是在头部的增长放电通道的自生场增强。我们简要回顾最近的流光实验和精灵观测。然后,我们勾勒出我们最近的工作计算的增长和分支流光,我们讨论的概念和解决方案的分析模型减少,我们审查不同的分支概念,并概述了层次结构的模型减少。
英文摘要:
Streamers are a generic mode of electric breakdown of large gas volumes. They play a role in the initial stages of sparks and lightning, in technical corona reactors and in high altitude sprite discharges above thunderclouds. Streamers are characterized by a self-generated field enhancement at the head of the growing discharge channel. We briefly review recent streamer experiments and sprite observations. Then we sketch our recent work on computations of growing and branching streamers, we discuss concepts and solutions of analytical model reductions, we review different branching concepts and outline a hierarchy of model reductions.
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