FLOW-SHEAR-INDUCED COMPTON-SCATTERING OF ELECTRON-DRIFT INSTABILITY

被引：13

作者：

HAHM, TS

机构：

[1] Princeton Plasma Physics Laboratory, Princeton University, Princeton

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1992年 / 4卷 / 09期

关键词：

D O I：

10.1063/1.860153

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：

Plasma flow-shear effects on nonlinear saturation of electron drift waves are analyzed in t weak turbulence regime. Flow shear can enhance ion Compton scattering of long-wavelength electron drift waves not only by modifying the beat wave-ion resonance condition, but also via the radial dependence of linear susceptibility. A nonlinear dispersion relation is obtained as a solution of the radially nonlocal nonlinear eigenmode equation. At nonlinear saturation, the spectral intensity of the fluctuations scales with flow shear as (partial derivative V 0-phi/partial derivative r)-2 in addition to the linear dependence on the linear growth rate, and decays according to a power law k(theta)-1.

引用

页码：2801 / 2806

页数：6

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