Study on the diffusion and deposition law of pore slurry in gangue filling zone based on CFD-DEM coupling.

ABSTRACT: In this study, the slurry diffusion in a cavity filled with coal gangue was studied by combining experimental and numerical simulation methods. By calibrating slurry and particle materials, the grouting process in coal gangue filling area is simulated successfully, and the change of slurry diffusion flow field and particle movement and settling process in different dimensions are deeply analyzed. Both experimental and numerical simulation results show that the particle settlement presents a bell-shaped curve, which is of great significance for understanding the particle movement and settlement behavior in the filling cavity. In addition, it is found that the grouting speed has a significant effect on the particle settlement during the slurry diffusion process. When the grouting speed incre

SUBMITTER: Ji Z 

PROVIDER: S-EPMC10903837 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature