Thermal conduction and thermal diffusion in dilute polyatomic gas mixtures

Alexandre Ern and Vincent Giovangigli

Physica A: Statistical Mechanics and its Applications, 1995, vol. 214, issue 4, 526-546

Abstract: A novel theoretical basis for the evaluation of the thermal conductivity and the thermal diffusion ratios of dilute polyatomic gas mixtures is derived within the semi-classical isotropic kinetic theory. New expressions for species diffusion coefficients, thermal diffusion coefficients, and thermal diffusion ratios are also obtained by using an expansion vector based upon the total energy of the molecules. Finally, practical and accurate expressions for the thermal conductivity and the thermal diffusion ratios are derived by using the recent theory of iterative transport algorithms, as developed by the authors. The resulting expressions can be used in either theoretical calculations or computational models of multicomponent flows.

Date: 1995
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:214:y:1995:i:4:p:526-546

DOI: 10.1016/0378-4371(94)00296-6

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