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Ohm's law for mean magnetic fields

Published online by Cambridge University Press:  13 March 2009

A. H. Boozer
A. H. Boozer
Affiliation:
Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08544
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Abstract

The magnetic fields associated with plasmas frequently exhibit small-amplitude MHD fluctuations. It is useful to have equations for the magnetic field averaged over these fluctuations, the so-called mean field equations. Under very general assumptions, it is shown that the effect of MHD fluctuations on a force-free plasma can be represented by one parameter in Ohm's law, which is effectively the coefficient of electric current viscosity.

Type
Research Article
Information
Journal of Plasma Physics , Volume 35 , Issue 1 , February 1986 , pp. 133 - 139
Copyright
Copyright © Cambridge University Press 1986

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References

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