Lattice Bhatnagar-Gross-Krook Simulation of Stratified Backward-Facing Step Flow
GUO Wei-Bin1, SHI Bao-Chang2, WANG Neng-Chao2, GUO Zhao-Li3
1School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074
2Parallel Computing Institute, Huazhong University of Science and Technology, Wuhan 430074
3State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074
Lattice Bhatnagar-Gross-Krook Simulation of Stratified Backward-Facing Step Flow
1School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074
2Parallel Computing Institute, Huazhong University of Science and Technology, Wuhan 430074
3State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074
Abstract： We perform a numerical simulation for steady stably-stratified flow over a two-dimensional backward-facing step with the Froude number of 16/9, the Reynolds number of 800 and the Prandtl number of 1.0 by using a newly developed thermal lattice Bhatnagar-Gross-Krook model. A detailed analysis is presented. Excellent agreement between the present results and other numerical data shows that the lattice-Boltzmann method is an efficient simulation method for complex flows.
2002, Vol. 19 
