title: Coupling of thermal and mass diffusion in regular binary thermal lattice gases.
abstract: We have constructed a regular binary thermal lattice gas model in which the thermal diffusion and mass diffusion are coupled and form two nonpropagating diffusive modes. The power spectrum is shown to be similar in structure as for the one in real fluids, in which the central peak becomes a combination of coupled entropy and concentration contributions. Our theoretical findings for the power spectra are confirmed by computer simulations performed on this model.
authors.affiliation: Grupo Interdisciplinar de Sistemas Complicados (GISC), Departamento de Matemáticas, Universidad Carlos III de Madrid, Avenida de la Universidad 30, 28911 Leganés, Madrid, Spain. rblaak@pa.uc3m.es
authors.forename: R
authors.initials: R
authors.lastname: Blaak
authors.forename: D
authors.initials: D
authors.lastname: Dubbeldam