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
收藏
页码：4373 / 4378
页数：6
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