Abstract
In this thesis, the turbulent channel flow with heat transfer is simulated with single-relaxation-time thermal lattice Boltzmann method. To speed up the simulation, the computation is conducted on multi-GPU cluster with two-dimensional decomposition by message passing interface(MPI). For validation, the laminar flow is simulated and compared with analytical solution. For turbulent flow simulations, the friction Reynolds number is set to be ???=150 and the Prandtl number is ??=0.71. Two cases, with LES and without LES, are simulated. Both results are compared with benchmark solutions and are in good agreement. The hairpin structure can be observed in the isosurface of Q-criterion and pressure. The temperature fluctuations is also visualized. In addition, the parallel performance is tested by the strong scaling test on different GPU cluster.