Out-of-plane shear flow effects on fast magnetic reconnection in a two-dimensional hybrid simulation model

被引：6
|
作者：
Wang Lin [1 ,2 ,3 ]
Wang Xian-Qu [4 ,5 ]
Wang Xiao-Gang [4 ,5 ]
Liu Yue [1 ,2 ]
机构：
[1] Dalian Univ Technol, MOE Key Lab Mat Modificat Beams, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
[3] Dalian Polytech Univ, Sch Informat Sci & Engn, Dalian 116034, Peoples R China
[4] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[5] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
来源：
CHINESE PHYSICS B | 2014年 / 23卷 / 02期
基金：
中国国家自然科学基金;
关键词：
out-of-plane magnetic field; shear flow; magnetic reconnection; Hall effects; COLLISIONLESS RECONNECTION; FORCED RECONNECTION; DYNAMICS; PLASMAS; LAYER;
D O I：
10.1088/1674-1056/23/2/025203
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effects of out-of-plane shear flows on fast magnetic reconnection are numerically investigated by a two-dimensional (2D) hybrid model in an initial Harris sheet equilibrium with flows. The equilibrium and driven shear flows out of the 2D reconnection plane with symmetric and antisymmetric profiles respectively are used in the simulation. It is found that the out-of-plane flows with shears in-plane can change the quadrupolar structure of the out-of-plane magnetic field and, therefore, modify the growth rate of magnetic reconnection. Furthermore, the driven flow varying along the anti-parallel magnetic field can either enhance or reduce the reconnection rate as the direction of flow changes. Secondary islands are also generated in the process with converting the initial X-point into an O-point.
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收藏
页数：8
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