Abstract
The work presented in this paper investigates the efficiency of various (i.e., $$D_{3}Q_{15}$$ , $$D_{3}Q_{19}$$ , and $$D_{3}Q_{27}$$ ) three-dimensional discrete velocity models of lattice Boltzmann method (LBM) for the simulation of turbulent flow past over a bluff body. The numerical setup consists of a square cylinder confined in a rectangular duct. Large eddy simulation (LES) model has been used for the simulation of turbulent eddies. The small-scale turbulent structures were resolved by using the conventional Smagorinsky subgrid-scale (SGS) model. The computations have been carried out on a uniform Cartesian grid. The results for different turbulent statistics have presented and compared with the available experimental and previous numerical (based on finite volume approach) results for Reynolds number $$Re_{d} = 3000$$ . The algorithm developed for the present simulation has been parallelized to run on Graphical Processing Unit (GPU) parallel platform.
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