4.5 Article

STOCHASTIC MODELS OF THERMODIFFUSION

Journal

MODERN PHYSICS LETTERS B
Volume 23, Issue 9, Pages 1147-1155

Publisher

WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217984909019260

Keywords

Stochastic processes; classical transport

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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.

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