PARAMETRIC-EXCITATION OF DRIFT WAVES IN A SHEARED SLAB GEOMETRY

被引：6
|
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：
PHYSICS OF PLASMAS | 1994年 / 1卷 / 04期
关键词：
D O I：
10.1063/1.870739
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 threshold for parametric excitation of drift waves in a sheared slab geometry is calculated for a drift-wave pump which has a standing wave structure along the magnetic field, and the coupling is achieved by the Hasegawa-Mima vector product-type nonlinearity. The usual shear damping is counteracted by the parametric interaction which causes a reversal of the direction of the drift wave group velocity, and the nonlinear eigenvalue problem is solved analytically using Taylor's strong coupling approximation.
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页码：809 / 814
页数：6
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