Lattice Boltzmann Numerical Simulation of Phase Separation Induced by Variable Temperature Field

Phase separation is an unstable tendency and process of separating two or more phases from the original mixed fluids due to the change in environmental conditions. It is one of the core contents in the study of multiphase fluids. In this paper, the phase separation behavior of binary fluids under the change of temperature is studied by the free-energy lattice Boltzmann model coupling the fluid viscosity and temperature.