摘要
本文运用二维约化摄动方程推导出彗尾剪彻磁流体的修正B-KdV方程,并定性讨论了其非线性性态。主要结论是:(1)推导出彗尾剪切磁流体修正的B-KdV方程,(2)给出彗尾宏观非线性波动与剪切背景的制约关系,(3)定性地解释了彗尾等离子体的一些复杂结构,(4)给出太阳风与彗尾等离子体相互作用的一种输运机制。
Using the two-dimension reductive perturbgation method in this paper, the modified B-KdV equation of sheared magnetohydrodynamics in the comet-tail is derived and its nonlinear properties are investigated qualitatively. The primary results are: (1) A modified B-KdV equation of sheared modified magnetohydrodynamice in comet-tail is derived; (2) The restrictive relations about macroscopic nonlinear wave acd sheared background in comet-tail are given; (3) The complicated structures in plasma comet-tail are explained qualitatively, and (4) A transfer mechanism of interaction between solar wind and plasma in comet-tail is given.
出处
《空间科学学报》
CAS
CSCD
北大核心
1993年第2期107-115,共9页
Chinese Journal of Space Science
关键词
彗尾
磁流体
修正B-KdV方程
Comet-tail, Magnetohydrodynamics, Modified B-KdV equation, Nonli-near properties
