title: Lattice Boltzmann model for thermal binary-mixture gas flows.
abstract: A lattice Boltzmann model for thermal gas mixtures is derived. The kinetic model is designed in a way that combines properties of two previous literature models, namely, (a) a single-component thermal model and (b) a multicomponent isothermal model. A comprehensive platform for the study of various practical systems involving multicomponent mixture flows with large temperature differences is constructed. The governing thermohydrodynamic equations include the mass, momentum, energy conservation equations, and the multicomponent diffusion equation. The present model is able to simulate mixtures with adjustable Prandtl and Schmidt numbers. Validation in several flow configurations with temperature and species concentration ratios up to nine is presented.
authors.affiliation: Combustion Research Laboratory, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland. jinfen.kang@psi.ch
authors.forename: Jinfen
authors.initials: J
authors.lastname: Kang
authors.forename: Nikolaos I
authors.initials: NI
authors.lastname: Prasianakis
authors.forename: John
authors.initials: J
authors.lastname: Mantzaras
mesh_terms: D003198:Computer Simulation; D005740:Gases / Q000737:chemistry*; D008962:Models, Theoretical; D012212:Rheology / Q000379:methods*; D013696:Temperature; D013816:Thermodynamics
chemical_list: D005740:Gases