Localized Alfvenic solutions of nondissipative and compressible MHD

被引：0

作者：

Chanteur, G ^{[1
]}

机构：

[1] Ctr Etud Environm Terrestre & Planetaires, Velizy, France

来源：

NONLINEAR PROCESSES IN GEOPHYSICS | 1999年 / 6卷 / 3-4期

关键词：

D O I：

10.5194/npg-6-145-1999

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Alfvenic solutions of nondissipative MHD are entirely determined by their magnetic configuration. With the supplementary assumption of incompressibility any solenoidal field can be used to construct an Alfvenic solution. It is demonstrated that for nondissipative and compressible MHD the energy equation constrains the magnetic field of Alfvenic solutions to have a constant strength along field lines. Some topological solitons known in nondissipative and incompressible MHD do not have this property. New localized axisymmetric Alfvenic solutions of nondissipative and compressible MHD are explicitly constructed.

引用

页码：145 / 148

页数：4

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