Self diffusion and binary Maxwell-Stefan diffusion in simple fluids with the Green-Kubo method
Chemical Physics
2009-11-13 v1 Computational Physics
Abstract
Self diffusion coefficients and binary Maxwell-Stefan diffusion coefficients were determined by equilibrium molecular dynamics simulations with the Green-Kubo method. The study covers five pure fluids: neon, argon, krypton, xenon, and methane and three binary mixtures: argon+krypton, argon+xenon, and krypton+xenon. The fluids are modeled by spherical Lennard-Jones air-potentials, with parameters which were determined solely on the basis of vapor-liquid equilibria data. The predictions of the self diffusion coefficients agree within 5% for gas state points and about 10% for liquid state points. The Maxwell-Stefan diffusion coefficients are predicted within 10%. A test of Darken's model shows good agreement.
Cite
@article{arxiv.0904.4629,
title = {Self diffusion and binary Maxwell-Stefan diffusion in simple fluids with the Green-Kubo method},
author = {G. A. Fernandez and J. Vrabec and H. Hasse},
journal= {arXiv preprint arXiv:0904.4629},
year = {2009}
}