The kinetic shear viscosity coefficient in a dilute, multicomponent hard sphere gas mixture

Starting with the ’’successive uncorrelated binary collision model’’ the kinetic part of the shear viscosity is calculated for a multicomponent dilute hard sphere gas mixture defined by the parameters nα (number density), mα (mass), and σαα (hard sphere diameter). The concentration dependence of the shear viscosity in a multicomponent mixture is determined within the ’’one and two collision approximation.’’ It is shown that the semiempirical result for a multicomponent mixture can be obtained if one uses the concentration dependence calculated for the hard sphere system together with the experimentally determined or, for realistic potentials, calculated shear viscosities of the single components of the mixture.