DRIFT-WAVE SHEAR DAMPING ANNULMENT DUE TO PARAMETRIC COUPLING AND MAGNETIC-FIELD VARIATION

被引：3
作者：
DAVYDOVA, TA
JOVANOVIC, D
VRANJES, J
WEILAND, J
机构：
[1] INST PHYS, YU-11001 BELGRADE, YUGOSLAVIA
[2] CHALMERS UNIV TECHNOL, INST ELECTROMAGNET FIELD THEORY, S-41296 GOTHENBURG, SWEDEN
[3] EURATOM, NFR ASSOC, S-41296 GOTHENBURG, SWEDEN
来源：
PHYSICA SCRIPTA | 1993年 / 48卷 / 05期
关键词：
D O I：
10.1088/0031-8949/48/5/016
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Nonlinear suppression of the drift wave shear damping by the simultaneous action of a strong standing pump wave, and of the magnetic field variation along the magnetic field line is studied using a version of the Hasegawa-Mima equation. The threshold for the parametric destabilization is calculated as a function of the plasma parameters. Destabilization occurs due to the elimination of the energy convection towards the dissipative layer, by both the linear toroidal coupling and nonlinear parametric coupling.
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页码：603 / 606
页数：4
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