Application of lattice Boltzmann model to multiphase flows with phase transition Original Research Article

A lattice Boltzmann model for multiphase flows is extended to simulate multi-phase fluids flows with phase transition by taking an account of mass exchange process in the lattice Boltzmann equation. The numerical measurements in terms of bulk properties such as volume fraction and density agree with analytical solutions of mass and volume conservation through simulations of phase transitions with homogeneous transition rate. The simulations of phase transition under gravity including pool boiling and boiling flow in a vertical pipe demonstrate qualitative applicability of the model to simulation of complicated multi-phase fluid dynamics with phase transition.