Generation of Alfvén wave energy during magnetic reconnection in Hall MHD

作     者：李灵杰 马志为 王理程 Lingjie LI

作者机构：Institute for Fusion Theory and Simulation Zhejiang University 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2017年第19卷第10期

页      面：5-13页

核心收录：

学科分类：08[工学] 080103[工学-流体力学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Fundamental Research Fund for Chinese Central Universities National Natural Science Foundation of China under Grant No. 41474123 the ITER-CN under Grant Nos. 2013GB104004 and 2013GB111004 

主　　题：magnetic reconnection Alfvén wave energy Hall effect 

摘      要：The effect of the reconnection rate on the generation of Alfvén wave energy is systematically investigated using Hall magnetohydrodynamics（MHD）. It is well known that a decrease in magnetic energy is proportional to the reconnection rate. It is found that an instantaneous increase in Alfvén wave energy in unit Alfvén time is the square dependence on the reconnection rate. The converted Alfvén wave energy is strongly enhanced due to the large increase in the reconnection rate in Hall MHD. For solar-terrestrial plasmas, the maximum converted Alfvén wave energy in unit Alfvén time with the Hall effect can be over 50 times higher than that without the Hall effect during magnetic reconnection.