Finite-difference-based multiple-relaxation-times lattice Boltzmann model for binary mixtures.
In this paper, we propose a finite-difference-based lattice Boltzmann equation (LBE) model with multiple-relaxation times (MRT), in which the distribution functions of individual species evolve on a same regular lattice without any interpolations. Furthermore, the use of the MRT enables the model more flexible so that it can be applied to mixtures of species with different viscosities and adjustable Schmidt number. Some numerical tests are conducted to validate the model, the numerical results are found to agree well with analytical solutions/or other numerical results, and good numerical stability of the proposed LBE model is also observed.
Zheng
Lin
L
National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Guo
Zhaoli
Z
Shi
Baochang
B
Zheng
Chuguang
C