A SELF-CONSISTENT THEORY OF COLLECTIVE ALPHA-PARTICLE LOSSES INDUCED BY ALFVENIC TURBULENCE

被引：7

作者：

BIGLARI, H ^{[1
]}

DIAMOND, PH ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DEPT PHYS B019,LA JOLLA,CA 92093

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1992年 / 4卷 / 10期

关键词：

D O I：

10.1063/1.860411

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 nonlinear dynamics of kinetic Alfven waves, resonantly excited by energetic ions/alpha particles, is investigated. It is shown that alpha particles govern both linear instability and nonlinear saturation dynamics, while the background magnetohydrodynamic turbulence results only in a nonlinear real frequency shift. The most efficient saturation mechanism is found to be self-induced profile modification. Expressions for the fluctuation amplitudes and the alpha-particle radial flux are self-consistently derived. The work represents the first self-consistent, analytical, turbulent treatment of collective alpha-particle losses by Alfvenic fluctuations.

引用

页码：3009 / 3012

页数：4

共 12 条

[1] SATURATION OF A SINGLE-MODE DRIVEN BY AN ENERGETIC INJECTED BEAM .3. ALFVEN-WAVE PROBLEM [J].