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STOCHASTIC MODELS OF THERMODIFFUSION

C. CHEVALIER

Université Pierre et Marie Curie-Paris 6, UMR 8112, ERGA-LERMA, 3 rue Galilée 94200 Ivry, France

Institute for Theoretical Physics, University of Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam, The Netherlands

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F. DEBBASCH

Université Pierre et Marie Curie-Paris 6, UMR 8112, ERGA-LERMA, 3 rue Galilée 94200 Ivry, France

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J. P. RIVET

Laboratoire Cassiopée, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d'Azur, F-06304 Nice Cedex 04, France

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https://doi.org/10.1142/S0217984909019260Cited by:4 (Source: Crossref)

Abstract

New stochastic models of thermodiffusion are constructed and their hydrodynamical limits are studied through a first-order Chapman–Enskog expansion. These models differ from earlier ones by taking into account all first-order contributions proportional to the temperature gradient and, thus, allow for both positive and negative Soret coefficients, in accordance with observations.

Keywords:

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