Molecular dynamics simulation of hard-disc mixtures

Abstract

Self-diffusion coefficients D ₁ and D ₂, determined by molecular dynamics simulation, are reported for binary mixtures of hard discs. While the absolute values of D ₁ and D ₂ show substantial deviations from the modified Enskog theory, especially at high density, the ratio D ₁/D ₂ is in much better agreement with the simple model.