Transport in two dimensions. II the thermal conductivity coefficient

Herbert H-H Yuan and Irwin Oppenheim

Physica A: Statistical Mechanics and its Applications, 1978, vol. 90, issue 1, 21-38

Abstract: The study of generalized transport coefficients in two dimensions is continued. In this article, the thermal conductivity coefficient is examined. The Mori formalism is used and the set of variables consists of all finite multilinear products of two collective conserved variables, the energy density and the momentum density. The tensorial symmetry of Euler and dissipative matrix elements is taken into account explicitly. Two simultaneous non-linear integral equations are obtained, the asymptotic solution for which behave in the same manner as the self-diffusion coefficient studied in an earlier paper. However, the coefficient is dependent upon the intermolecular potential. The heat current auto-correlation function decays asymptotically as [t In12t]−1. The asymptotic form for the shear viscosity coefficient is examined briefly and found to be independent of the intermolecular potential. A better approximation for the coefficient of the asymptotic form of the self-diffusion coefficient is presented.

Date: 1978
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:90:y:1978:i:1:p:21-38

DOI: 10.1016/0378-4371(78)90042-0

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