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The microinstabilities of a high-β plasma flow with a non-uniform velocity profile

Published online by Cambridge University Press:  13 March 2009

A. B. Mikhailovskii
Affiliation:
I. V. Kurchatov Institute of Atomic Energy, Moscow, USSR
V. A. Klimenko
Affiliation:
I. V. Kurchatov Institute of Atomic Energy, Moscow, USSR

Abstract

The microinstabilities of a high-pressure plasma moving along a magnetic field with a non-uniform velocity profile are investigated. A similar problem was studied earlier by Dobrowolny on the basis of hydromagnetic equations with an oblique viscosity tensor. The present paper, unlike Dobrowolny's work, gives a kinetic analysis. Perturbations with transverse wavelength both larger and smaller than the ion Larmor radius are considered. The analysis indicates that there is a large family of microinstabilities of the ‘drift’ type whose mechanism differs from the classical Kelvin–Helmholtz instability.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1980

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