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Title: Generation of zonal flows by kinetic Alfven waves

Abstract

The generation of zonal flows by kinetic Alfven waves is analyzed. It is noted that the basic approach underlying the existing theory of this phenomenon is too simplified because it attributes the generation of zonal flows to instabilities of an individual monochromatic wave packet of kinetic Alfven waves. It is shown that, when a monochromatic wave packet is stable, it is necessary to analyze a more complicated situation with a double-peak packet (or, in the simplest case, with two pump waves). It is found that, for a double-peak packet of kinetic Alfven waves, there is a new class of instabilities of zonal flows and that these instabilities are analogous to two-stream instabilities in linear theory. The main types of such instabilities are investigated.

Authors:
; ; ;  [1]; ;  [2]
  1. Russian Research Centre Kurchatov Institute, Nuclear Fusion Institute (Russian Federation)
  2. Institute of Physics, University of Sao Paulo (Brazil)
Publication Date:
OSTI Identifier:
21100206
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 33; Journal Issue: 2; Other Information: DOI: 10.1134/S1063780X07020055; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; MONOCHROMATIC RADIATION; PEAKS; PUMPING; TWO-STREAM INSTABILITY; WAVE PACKETS

Citation Formats

Mikhailovskii, A. B., Kovalishen, E. A., Shirokov, M. S., Smolyakov, A. I., Tsypin, V. S., and Galvao, R. M. O. Generation of zonal flows by kinetic Alfven waves. United States: N. p., 2007. Web. doi:10.1134/S1063780X07020055.
Mikhailovskii, A. B., Kovalishen, E. A., Shirokov, M. S., Smolyakov, A. I., Tsypin, V. S., & Galvao, R. M. O. Generation of zonal flows by kinetic Alfven waves. United States. doi:10.1134/S1063780X07020055.
Mikhailovskii, A. B., Kovalishen, E. A., Shirokov, M. S., Smolyakov, A. I., Tsypin, V. S., and Galvao, R. M. O. Thu . "Generation of zonal flows by kinetic Alfven waves". United States. doi:10.1134/S1063780X07020055.
@article{osti_21100206,
title = {Generation of zonal flows by kinetic Alfven waves},
author = {Mikhailovskii, A. B. and Kovalishen, E. A. and Shirokov, M. S. and Smolyakov, A. I. and Tsypin, V. S. and Galvao, R. M. O.},
abstractNote = {The generation of zonal flows by kinetic Alfven waves is analyzed. It is noted that the basic approach underlying the existing theory of this phenomenon is too simplified because it attributes the generation of zonal flows to instabilities of an individual monochromatic wave packet of kinetic Alfven waves. It is shown that, when a monochromatic wave packet is stable, it is necessary to analyze a more complicated situation with a double-peak packet (or, in the simplest case, with two pump waves). It is found that, for a double-peak packet of kinetic Alfven waves, there is a new class of instabilities of zonal flows and that these instabilities are analogous to two-stream instabilities in linear theory. The main types of such instabilities are investigated.},
doi = {10.1134/S1063780X07020055},
journal = {Plasma Physics Reports},
number = 2,
volume = 33,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}