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JOURNALS // Matematicheskoe modelirovanie // Archive

Matem. Mod., 1992 Volume 4, Number 1, Pages 44–64 (Mi mm2034)

Mathematical models and computer experiment

Transport coefficients for chemical nonequilibrium components of air mixtures

A. V. Atidriatisa, S. A. Zhluktovb, I. A. Sokolovac

a Dorodnitsyn Computing Centre of the Russian Academy of Sciences
b Institute for Computer Aided Design of RAS
c Institute for Mathematical Modelling, Russian Academy of Sciences

Abstract: The new formulae for the transport conductivity and viscosity of air mixtures with variable chemical elements composition of atoms, molecules, ions of atoms and molecules and electron adoptable in wide diapasons of temperature, pressure and concentrations are derived. These formulae with the emperical constants are results of the simulations by minimization of the errors from the precise numerical computations according to kinetic theory Chapman–Enskog method with high order Sonine polynomial expansions (viscosity coefficients have been calculated in second approximation, transport conductivity coefficients – in third approximations). The some well-known formulae for the transport properties of gas mixtures were been estimated, their accuracy was analysed and practical useful recomendations were made.

UDC: 533.539

Received: 14.05.1990



© Steklov Math. Inst. of RAS, 2024