Transport coefficients of multi-component mixtures of noble gases based on ab initio potentials: Viscosity and thermal conductivity

The viscosity and thermal conductivity of binary, ternary, and quaternary mixtures of helium, neon, argon, and krypton at low density are computed for wide ranges of temperatures and molar fractions, applying the Chapman–Enskog method. Ab initio interatomic potentials are employed in order to calcul...

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Bibliographic Details
Published in:Physics of fluids (1994) 2020-07, Vol.32 (7)
Main Authors: Sharipov, Felix, Benites, Victor J.
Format: Article
Language:English
Subjects:
Argon
Fluid dynamics
Heat conductivity
Heat transfer
Krypton
Neon
Physics
Rare gases
Thermal conductivity
Transport properties
Viscosity
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Summary:The viscosity and thermal conductivity of binary, ternary, and quaternary mixtures of helium, neon, argon, and krypton at low density are computed for wide ranges of temperatures and molar fractions, applying the Chapman–Enskog method. Ab initio interatomic potentials are employed in order to calculate the omega-integrals. The relative numerical errors of the viscosity and thermal conductivity do not exceed 10−6 and 10−5, respectively. The relative uncertainty related to the interatomic potential is about 0.1%. A comparison of the present data with results reported in other papers available in the literature shows a significant improvement of accuracy of the transport coefficients considered here.
ISSN:1070-6631
1089-7666
DOI:10.1063/5.0016261