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 Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 95, Issue 6, Pages 349–354 (Mi jetpl2466)

CONDENSED MATTER

Transport coefficients of soft sphere fluid at high densities

Yu. D. Fomin, V. V. Brazhkin, V. N. Ryzhov

Institute for High Pressure Physics, Russian Academy of Sciences

Abstract: Molecular dynamics computer simulation has been used to compute in wide pressure–temperature region the self-diffusion coefficient and shear viscosity of soft-sphere fluids, in which the particles interact through the inverse power pair potential. The limitations of the previous empirical approaches and models for the description of the kinetic coefficients is shown. On the basis of the simulations the universal functions for diffusion coefficient and shear viscosity of soft spheres are constructed which allow to compute these quantities for any density and temperature. We show that the behavior of shear viscosity at high temperatures is more complex than the one of diffusion coefficient and give quantitative explanation of this result.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 95:6, 320–325

Bibliographic databases:

Document Type: Article
Revised: 10.02.2012
Language: English

Citation: Yu. D. Fomin, V. V. Brazhkin, V. N. Ryzhov, “Transport coefficients of soft sphere fluid at high densities”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:6 (2012), 349–354; JETP Letters, 95:6 (2012), 320–325

Citation in format AMSBIB
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Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles

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