LBM-DEM data for the infiltration characteristics of slurries in porous media
Description
Based on the DEM-LBM coupled method, we built a simplified model to simulate the process of slurry infiltrating porous media. The simulation result indicated that the fine particles had stronger movement performance than large particles. Thus, larger particles generally stopped in the porous media surface and formed a filter cake mixture with the later fine particles. Whereas, fine particles composed blockage inside the porous media. In addition, the applied fluid pressure had a close relationship with the slurry infiltration. On the one hand, higher pressure could promote slurry to infiltrate porous media. On the other hand, the pressure could also make the media clog faster by the slurry. There was a pressure threshold to make the slurry infiltrate rapidly without immediate blockage. To further investigate the media clogging process of this simulation, we classified the blockage in the media as single clogging, connecting clogging, and retention clogging according to the mechanical stability and particle composition. At the same time, we also provided a detailed description to explain the clogging process during the slurry infiltration.