EFFECTS OF NONVANISHING ION VISCOSITY ON THE LINEAR-STABILITY OF DRIFT TEARING MODES IN A TOKAMAK

被引：1

作者：

LAZZARO, E ^{[1
]}

LAMPIS, G ^{[1
]}

BERNARDINELLO, A ^{[1
]}

机构：

[1] UNIV MILAN, DIPARTIMENTO FIS, I-20133 MILAN, ITALY

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1994年 / 63卷 / 12期

关键词：

DRIFT TEARING; LINEAR DISPERSION; STABILITY; VISCOSITY; SINGULAR LIMIT; ORR-SOMMERFELD; DISSIPATIVE MODE COUPLING; BOUNDARY LAYER; EDGE LOCALIZED TEARING MODES;

D O I：

10.1143/JPSJ.63.4373

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The inviscid drift tearing modes dispersion relation is a singular limit of the viscous theory. We show that a finite viscosity leads to dissipative coupling of branches of the drift tearing mode dispersion relation. As a consequence, linear magnetic field reconnection perturbations appear. unstable also at large drift frequency. The effects present analogies with the theory of the Orr-Sommerfeld equation for viscous fluids. Applicability to edge localized resistive modes in a tokamak is suggested.

引用

页码：4373 / 4378

页数：6

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