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Dynamic shielding effects in partially ionized gases

Published online by Cambridge University Press:  13 March 2009

Hong-Sup Hahn ,
E. A. Mason ,
E. J. Miller  and
S. I. Sandler
Hong-Sup Hahn
Affiliation:
Brown University
E. A. Mason
Affiliation:
Brown University
E. J. Miller
Affiliation:
Department of Chemical Engineering, University of Delaware
S. I. Sandler
Affiliation:
Department of Chemical Engineering, University of Delaware
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Abstract

The effects of dynamic shielding of charged-particle interactions on the predicted values of hte transport properties of partially ionized argon are considered. It is found that, at low degreesof ionization, dynamic shielding effects are of little importance, because charged-particle encounters are infrequent, so that the perturbed Lorentzian method may be used to obtain a rapidly convergent solution. At higher degrees of ionization, where the Chapman–Enskog solution converges rapidly, dynamic shielding effects can be taken into account using the expressions presented in the appendix to this paper. It is also found that the static shielding model, assuming complete shielding by electrons only, yields results that are quite close to those obtained when dynamic shielding is considered.

Type
Research Article
Information
Journal of Plasma Physics , Volume 7 , Issue 2 , April 1972 , pp. 285 - 292
Copyright
Copyright © Cambridge University Press 1972

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References

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