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JOURNALS // Meždunarodnyj naučno-issledovatel'skij žurnal // Archive

Meždunar. nauč.-issled. žurn., 2019 Issue 10(88), Pages 17–25 (Mi irj551)

PHYSICS AND MATHEMATICS

On diffusion in lattice gas for large concentration gradients

Yu. V. Troshchiev

Lomonosov Moscow State University

Abstract: The article derives expressions for flows and diffusion coefficients in an imperfect lattice gas from equations of chemical kinetics convenient for study. Coefficients are linear operators depending on concentrations and their gradients. It is shownthat the flow direction can build any angle with the direction of the gradient.

Keywords: lattice gas, diffusion coefficients, chemical kinetics equations.

DOI: 10.23670/IRJ.2019.88.10.003


 English version:
DOI: 10.23670/IRJ.2019.88.10.003


© Steklov Math. Inst. of RAS, 2026