STABILITY OF TOROIDAL DRIFT-TYPE WAVES IN THE PRESENCE OF A VELOCITY-FIELD

被引：15
|
作者：
SEN, S [1 ]
机构：
[1] INT CTR THEORET PHYS, I-34100 TRIESTE, ITALY
来源：
PHYSICS OF PLASMAS | 1995年 / 2卷 / 07期
关键词：
D O I：
10.1063/1.871233
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 instability associated with the toroidal drift-type wave is shown to be stabilized by a radially varying equilibrium poloidal velocity field of suitable magnitude and curvature. The radial mode envelope is now much more extended than its conventional localized Gaussian form. The role of velocity curvature (V(r)″θ) is found to have robust effects on the stability and radial structure of the mode. Velocity shear (V(r) ′θ) on the other hand is found to have a rather insignificant role in this matter. © 1995 American Institute of Physics.
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页码：2701 / 2704
页数：4
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