Moment closure of the relativistic Anderson and Witting model equation

It is shown that the closure of the model equation of Anderson and Witting by a moment method leads to transport coefficients of a relativistic gas which differ from those obtained by the usual Chapman and Enskog method. The transport coefficients obtained in the two closures coincide in the non-rel...

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Bibliographic Details
Published in:Physica A 2001-02, Vol.290 (1), p.192-202
Main Authors: Cercignani, C., Kremer, G.M.
Format: Article
Language:English
Subjects:
Kinetic theory
Model equations
Relativity
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Summary:It is shown that the closure of the model equation of Anderson and Witting by a moment method leads to transport coefficients of a relativistic gas which differ from those obtained by the usual Chapman and Enskog method. The transport coefficients obtained in the two closures coincide in the non-relativistic limiting case but depart from each other in the relativistic and ultra-relativistic regions.
ISSN:0378-4371
1873-2119
DOI:10.1016/S0378-4371(00)00403-9