| Analysis of the Mechanism of Agglomeration during Wet
Ball Milling by Using DEM-CFD Simulation |
Kizuku Kushimoto,a, * Akira Kondo,b Takahiro Kozawa,c Makio Naitod and Junya Kanoa
Pages : 42-48
DOI : 10.1080/0371750X.2025.2472904 |
| Abstract |
| A simulation coupling Discrete Element Method (DEM) with Computational Fluid
Dynamics (CFD) was conducted in order to analyze the mechanism of agglomeration
during wet ball milling. From the simulation, although the volume of the agglomerates
decreased with increasing the interparticle repulsive force, the particles agglomerated
even when the repulsive force acted between the particles. In addition, the volume of
the agglomerates increased or converged to a certain volume as the balls repeatedly
approached, collided, and separated from each other. These tendencies of the
simulated agglomeration behaviour are consistent with the features of the
agglomeration that were reported by the previous experiments. This indicated that
the simulation represented the particle behaviour when the agglomeration occurs
during wet ball milling. Furthermore, the simulation analysis suggested that the
agglomeration during wet ball milling occurs when the liquid flow during the balls
separation compress the particles and the compression force exceeds the potential
of the repulsive force between the particles. |
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