LBM Fluid Structure Interaction 1.Simple case:couette flow and Poiseuille flow 2.cylinder flow LBM（Lattice Boltzmann method） IMB（Immersed moving boundary）：Noble D R, Torczynski J R. A Lattice-Boltzmann Method for Partially Saturated Computational Cells[J]. International Journal of Modern Physics C, 1998, 09(08): 1189-1201. DEM（Discrete element method）：Feng Z G, Michaelides E E. The immersed boundary-lattice Boltzmann method for solving fluid-particles interaction problems[J]. Journal of Computational Physics, 2004, 195(2): 602-628. Glowinski R, Pan T W, Hesla T I, Joseph D D, Périaux J. A Fictitious Domain Approach to the Direct Numerical Simulation of Incompressible Viscous Flow past Moving Rigid Bodies: Application to Particulate Flow[J]. Journal of Computational Physics,2001,169(2).