A SUFFICIENT CONDITION FOR THE IDEAL INSTABILITY OF SHEAR-FLOW WITH PARALLEL MAGNETIC-FIELD

被引：32

作者：

CHEN, XL ^{[1
]}

MORRISON, PJ ^{[1
]}

机构：

[1] UNIV TEXAS,INST FUSION STUDIES,AUSTIN,TX 78712

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1991年 / 3卷 / 04期

关键词：

D O I：

10.1063/1.859841

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A simple sufficient condition is given for the linear ideal instability of plane parallel equilibria with antisymmetric shear flow and symmetric or antisymmetric magnetic field. Application of this condition shows that plane Couette flow, which is stable in the absence of a magnetic field, can be driven unstable by a symmetric magnetic field. Also, although strong magnetic shear can stabilize shear flow with a hyperbolic tangent profile, there exists a range of magnetic shear that causes destabilization.

引用

页码：863 / 865

页数：3

共 16 条

[1] THEORY OF EXTRAGALACTIC RADIO-SOURCES [J].