離散要素法による遠心転動造粒機内粒子流れの数値シミュレーション〔流体工学, 流体機械〕

概要

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Three dimensional motion of all particles in a centriaugal tumbling granulator was calculated using a discrete element method (DEM). The quality of the products largely depends on the motion of particles in the granulator. Therefore it is important to know the behavior of particles. In the present simulation the velocity profile in a laboratory scale granulator was obtained by applying the periodic boundaries. Furthermore, the effect of the rotor speed on the velocity profile in the particle layer was studied. On the other hand, experiments were made for comparison. In the experiments, particle velocities on the surface of the particle layer were measured by using PTV technique. The particle velocity profile predicted by the present simulation agreed well with the experiments.
社団法人日本機械学会の論文
1997-12-25