Data for: Fluid-solid interaction simulation for particles and walls of arbitrary polygonal shapes with a coupled LBM-IMB-DEM method

These research data files includes the original Matlab code of the core algorithms in our paper: (1)'LBM_main_module.m' and 'DEM_force_compute.m' are the core code of the LBM and DEM modules introduced in Section 2. (2)'Initialize_mesh (with progressive scanning algorithm).m', 'Fast_intersection_judgment_algorithm.m' and 'Solid_volume_fraction_fast_algorithm.m' illustrate program implementations of the algorithms introduced in Section 3, which include the improved progressive scanning algorithm, fast intersection judgment algorithm and the proposed solid volume fraction fast algorithm. (3)'Porous_media_generation.m' is the module for generation random porous filter media in Section 5.