Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3120488
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Funding
- EPSRC-GB DTA
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The static and dynamic properties of binary mixtures of hard spheres with a diameter ratio of sigma(B)/sigma(A)= 0.1 and a mass ratio of m(B)/m(A)= 0.001 are investigated using event driven molecular dynamics. The contact values of the pair correlation functions are found to compare favorably with recently proposed theoretical expressions. The transport coefficients of the mixture, determined from simulation, are compared to the predictions of the revised Enskog theory using both a third-order Sonine expansion and direct simulation Monte Carlo. Overall, the Enskog theory provides a fairly good description of the simulation data, with the exception of systems at the smallest mole fraction of larger spheres (x(A)=0.01) examined. A fines effect was observed at higher packing fractions, where adding smaller spheres to a system of large spheres decreases the viscosity of the mixture; this effect is not captured by the Enskog theory. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3120488]
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