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彗尾剪切磁流体的修正B—KdV方程及其非线性特征
引用本文:甘师盘,洪明华.彗尾剪切磁流体的修正B—KdV方程及其非线性特征[J].空间科学学报,1993,13(2):107-115.
作者姓名:甘师盘  洪明华
作者单位:中南民族学院物理系 (甘师盘),武汉大学空间物理系 (洪明华),中国科学院武汉物理所(王宪民)
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。

关 键 词:彗尾  磁流体  修正B-KdV方程

THE MODIFIED B-KdV EQUATION OF SHEARED MAGNETO-HYDRODYNAMICS IN THE COMET-TAIL AND ITS NONLINEAR PROPERTIES
Gan Shi-pan.THE MODIFIED B-KdV EQUATION OF SHEARED MAGNETO-HYDRODYNAMICS IN THE COMET-TAIL AND ITS NONLINEAR PROPERTIES[J].Chinese Journal of Space Science,1993,13(2):107-115.
Authors:Gan Shi-pan
Abstract: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.
Keywords:Comet-tail  Magnetohydrodynamics  Modified B-KdV equation  Nonli-near properties
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