Shear flow destabilization of a slowly rotating tokamak

被引：20

作者：

Chu, MS ^{[1
]}

机构：

[1] Gen Atom Co, San Diego, CA 92186 USA

来源：

PHYSICS OF PLASMAS | 1998年 / 5卷 / 01期

关键词：

D O I：

10.1063/1.872687

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：

The Kelvin-Helmholtz destabilizing effect of shear in toroidal rotation on ideal magnetohydrodynamic localized interchange is studied in a tokamak with a general geometry. The method of maximizing the growth rate given by Frieman and Rotenberg is utilized. An explicit stability criterion is given for a slowly rotating tokamak with a non-negligible shearing rate in its rotation profile. It is found that rotation shear can weaken the stabilizing effect of the magnetic field shear and also allow the coupling of the sound wave to the shear Alfven wave which destabilizes the plasma. (C) 1998 American Institute of Physics.

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页码：183 / 191

页数：9

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