Coupled double-distribution-function lattice Boltzmann model with streaming-collision process

Abstract A coupled double distribution function lattice Boltzmann model with streaming-collision process is presented. In this model, continuity and momentum equations are recovered by a density energy equation total function, the specific-heat ratio Prandtl number flexible. At same time, used as update rule. Couette flow simulated numerical test. The results agreed relatively excellent analytical solutions.