Different Methods to Compute Force over a Cylinder by LBM

In according to the simplicity of the lattice Boltzmann method’s (LBM) algorithm and its benefits، it has been used as a successful method in computational fluid dynamics in the last decades. In this paper، LBM was used to simulate the flow over a cylinder. To analyze the application of LBM in simulation curved surface، different methods to compute drag coefficient were used. These methods are: momentum exchange، momentum exchange on the wall، stress integration، computing stress by velocity components. The result shows the ability of Lattice Boltzmann method to simulate curved surface.