The NRxx method for polyatomic gases
نویسندگان
چکیده
منابع مشابه
Kinetic model and moment method for polyatomic gases
A model kinetic equation for accurate description of rarefied polyatomic gases is introduced. The collisions of polyatomic gas particles are modeled by a two term collision operator, one modeling only exchange of translational energy and the other modeling exchange of both translational and internal energies. The proposed kinetic model, which is an extension of the Rykov and Shakov models, pred...
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*Work supported by the National Science Foundation. ~Alfred P. Sloan Fellows. J. Lebowitz and P. Resibois, Phys. Rev. 139, A1101 (1965), and references cited therein. H. Mori, Progr. Theoret. Phys. (Kyoto) 33, 423 (1965). 3P. Mazur and I. Oppenheim, J. Phys. Soc. Japan Suppl. 26, 35 (1969) ~ R. J. Rubin, Phys. Rev. 131, 964 (1963). Professor Zwanzig has studied (unpublished notes) Rubin's model...
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Abstract The aim of this article is to construct a BGK-type model for polyatomic gases which gives in the hydrodynamic limit the proper transport coefficient. Its construction relies upon a systematic procedure: minimizing Boltzmann entropy under suitable moments constraints ([20, 9]). The obtained model corresponds to the ellipsoidal statistical model introduced in [2]. We also study the retur...
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I would like to acknowledge the Molecular Physics Group of the Kamerlingh Onnes Laboratorium and especially Prof. Dr. J. J. M. BEENAKKER for the hospitality extended to me. I thank Prof. Dr. L. WALDMANN, Dr. H. F. P. KNAAP, Dr. F. R . MCCOURT, and Dr. B. SHIZGAL for helpful discussions. This work is part of the research program of the "Stichting voor Fundamenteel Onderzoek der Materie ( F . O ....
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Sound propagat ion in di lute pure gases, b o t h m o n a t o m i c a n d p o l y a t o m i c , has been considered f r o m the po int o f v iew o f the W a l d m a n n S n i d e r equat ion . It is shown that the c o m m o n l y e m p l o y e d assumption that sound propagat ion in gases is equ iva lent t o the propagat i on o f plane waves is val id o n l y in the region where collisions rest...
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2014
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2014.02.026