Simulation of Grinding Media Motion and Collisions in Wet-Operated Accelerator-Mill Using DEM Coupled with CFD

The relative motion and collision between grinding media in a wet-stirred accelerator mill are modelled using the discrete element method (DEM) coupled with computational fluid dynamics (CFD). local average normalized velocity profile is employed to divide chamber into four volumes, which facilitates analysis of stress energy distribution. filling levels, distributions, distributions efficiencies compared at various total levels stirrer speeds. rationality division volume was verified by intensity, number from media’s particle collisions exhibited different playing leading role Moreover, efficiency quantitatively characterized under process conditions. This simulation-based research provides theoretical reference for industrial application product development mills used applications.