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Effect of a weak ambipolar field on non-local heat transport using the non-diffusive approximation

Published online by Cambridge University Press:  13 March 2009

G. Murtaza ,
Arshad M. Mirza  and
M. S. Qaisar
G. Murtaza
Affiliation:
Quaid-i-Azam University, Islamabad, Pakistan
Arshad M. Mirza
Affiliation:
Quaid-i-Azam University, Islamabad, Pakistan
M. S. Qaisar
Affiliation:
Quaid-i-Azam University, Islamabad, Pakistan
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Abstract

We investigate the effect of a weak ambipolar field on non-local heat transport by solving the reduced Fokker-Planck equation in the non-diffusive approximation for the electron distribution function. It turns out that for a moderately high-Z plasma with steep gradients the maximum-heat-flow expression is modified and the ensuing results compare favourably with the experimental values. However, in the gentle-gradient limit the classical Spitzer-Härm heat flux expression is unaltered.

Type
Research Article
Information
Journal of Plasma Physics , Volume 45 , Issue 1 , February 1991 , pp. 51 - 57
Copyright
Copyright © Cambridge University Press 1991

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References

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