Incompressible Magnetohydrodynamic Kelvin-Helmholtz Instability with Continuous Profiles  

作　　者：ZHAO Kai-Ge WANG Li-Feng YE Wen-Hua WU Jun-Feng LI Ying-Jun 

机构地区：[1]State Key Laboratory for Ceomechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083 [2]Institute of Applied Physics and Computational Mathematics, Beijing 100094 [3]HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871 [4]Department of Physic, Zhejiang University, Hangzhou 310027

出　　处：《Chinese Physics Letters》2014年第3期23-26,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11275031, 11075024, 11274026 and 11074300, and the National Basic Research Program of China under Grant Nos 2013CB834100 and 2013CBA01504.

摘　　要：Effects of a continuous magnetic field in the direction of streaming on the incompressible Kelvin–Helmholtz instability （KHI） are investigated by solving the linear ideal magnetohydrodynamic equations. It is found that the frequency of the KHI is not influenced by the magnetic field. The magnetic field strength effect decreases the linear growth of the KHI, while the magnetic field gradient scale length effect increases its linear growth. The KHI can even be completely suppressed when the magnetic field is strong enough. The linear growth rate approaches a maximum when the magnetic field gradient scale length is large enough.Effects of a continuous magnetic field in the direction of streaming on the incompressible Kelvin–Helmholtz instability （KHI） are investigated by solving the linear ideal magnetohydrodynamic equations. It is found that the frequency of the KHI is not influenced by the magnetic field. The magnetic field strength effect decreases the linear growth of the KHI, while the magnetic field gradient scale length effect increases its linear growth. The KHI can even be completely suppressed when the magnetic field is strong enough. The linear growth rate approaches a maximum when the magnetic field gradient scale length is large enough.

分 类 号：O534[理学—等离子体物理] O357.1[理学—物理]