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Self-similar state of a weakly turbulent plasma

Published online by Cambridge University Press:  13 March 2009

R. Balescu
R. Balescu
Affiliation:
Facuité des Sciences, C.P. 231, Association Euratom-Etat Beige, Campus Piaine, Université Libre de Bruxelies, 1050 Bruxelies
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Abstract

The models of Vekshtein, Ryutov & Sagdeev (VRS), describing a marginally stable turbulent plasma sustaining an electric current, are shown to be incomplete by their neglect of the equations determining the spectral densities of the driving modes. An exhaustive study of these models including a detailed determination of the frequencies, spectral densities and turbulent energy densities, shows that, strictly speaking, there exists no self-similar turbulent state (SSTS). However, an approximate SSTS can be constructed, based on the finding that the tail of the spectral densities behaves self-similarly.

Type
Research Article
Information
Journal of Plasma Physics , Volume 24 , Issue 3 , December 1980 , pp. 551 - 575
Copyright
Copyright © Cambridge University Press 1980

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References

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