Abstract
Three-dimensional turbulent flows past a square cylinder are simulated by the Finite Difference Lattice Boltzmann Method (FDLBM). We carry out two sort of approaches, i.e., first case is carried out by fourth order nurmerical viscosity without any turbulent model and second case is simulated using the Dynamic Smagorinsky Model (DSM). These results are compared with those by the experiments conducted by Lyn et al. Numerical results by DSM agree with experimental ones and it is confirmed that this method is useful for numerical simulations of turbulent flows.
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