Lattice Bhatnagar-Gross-Krook Simulations of Turbulent Natural Convection in a Cavity
SHI Bao-Chang1, GUO Zhao-Li2, WANG Neng-Chao1
1Parallel Computing Institute, Huazhong University of
Science and Technology, Wuhan 430074
2National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074
Lattice Bhatnagar-Gross-Krook Simulations of Turbulent Natural Convection in a Cavity
SHI Bao-Chang1;GUO Zhao-Li2;WANG Neng-Chao1
1Parallel Computing Institute, Huazhong University of
Science and Technology, Wuhan 430074
2National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074
Abstract： A thermal lattice Bhatnagar-Gross-Krook (LBGK) model with a robust boundary scheme is developed for the Boussinesq incompressible fluids. In the model the velocity and temperature fields are solved by two independent LBGK equations which are combined into a coupled one for the whole system. The two-dimensional natural convection flow of air in a differentially heated cavity of aspect ratio 4 is simulated for the Rayleigh number up to 1010. The numerical results are found to be in good agreement with those of previous studies.
SHI Bao-Chang;GUO Zhao-Li;WANG Neng-Chao. Lattice Bhatnagar-Gross-Krook Simulations of Turbulent Natural Convection in a Cavity[J]. 中国物理快报, 2002, 19(4): 515-517.
SHI Bao-Chang, GUO Zhao-Li, WANG Neng-Chao. Lattice Bhatnagar-Gross-Krook Simulations of Turbulent Natural Convection in a Cavity. Chin. Phys. Lett., 2002, 19(4): 515-517.
2002, Vol. 19 
