摘要
A set of nonlinear fluid equations which include the effects of ion gyroradius is derived to describe Alfven vortex. The correction of finite ion gyroradius to the Alfven vortex in the inertial region is much more significant than that in the kinetic region. The amplitude of the vortex is enhanced in both regions. The scale of the vortex in the kinetic region becomes larger whereas it becomes smaller in the inertial region.
作者
WANG Xu-Yu
HE Xian-Tu
LIU Zhen-Xing
CAO Jin-Bin
王旭宇;贺贤土;刘振兴;曹晋滨(Institute of Applied Physics&Computational Mathematics,Beijing 100088;Laboratory of Space Weather,Center for Space Science&Applied Research,Chinese Academy of Sciences,Beijing 100080)
基金
Supported by the National Natural Science Foundation of China under Grant No.49784003
and China Postdoctoral Science Foundation.
