期刊
HIGH ENERGY DENSITY PHYSICS
卷 9, 期 1, 页码 231-238出版社
ELSEVIER
DOI: 10.1016/j.hedp.2012.11.009
关键词
Weibel instability; Electron heating; Fast ion streams
资金
- Aquitaine Regional Council
- United States Army Research Development and Engineering Command (RDECOM) - International Technology Center Atlantic
Collisionless shock formation is investigated with large scale fully electromagnetic two-dimensional Particle-in-Cell numerical simulations. Two plasmas are colliding in the center of mass reference frame at sub-relativistic velocities. Their interaction leads to collisionless stochastic electron heating, ion slowing down and formation of a shock front. We focus here on the initial stage of evolution where electron heating is due to the Weibel-like micro-instability driven by the high-speed ion flow. A two stage process is described in the detailed analysis of our simulation results. Filament generation, followed by turbulent mixing, constitute the dominant mechanism for energy repartition. The global properties are illustrated by examination of single filament evolution in terms of energy/particle density and fields. (C) 2013 Published by Elsevier B.V.
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