Binary Mixtures Simulation Based on Lattice Boltzmann Method

The fluids with different properties are mixed together to form a multi-component fluid system. It is a normal and interesting phenomenon in nature. The main visual effects root in the diffusing process (such as dissolving phenomenon) and the demixing process(cooking oil floats on the surface of the water) of the mixture. However, because of the complex microscopic interaction between the mixture components, the simulation of the multi-component fluid is still a very challenging mission, and few relative works has been reported at present in the graphics literature. In this paper, the authors introduce a Lattice Boltzmann Model(LBM) to simulate binary mixtures. Different from other similar models, the viscid and diffusing properties of the fluid are considered separately, and this makes it so easy to simulate the miscible or immiscible two fluids system within one framework. In addition, the operation of LBM is mostly linear local computation, which can be easily speeded up on Graphics Processing Unit(GPU) in order to make real-time simulation. The several experimental results of binary mixtures are presented in the paper.