DEM Simulation of Sieving Process about Rod-like Particles

概要

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A numerical simulation model for a sieving process of non-spherical particles by discrete element method (DEM) coupled with particle-based rigid body model has been developed. Four kinds of rod-like particles having aspect ratio of 4, 8, 10 and 12 were prepared as sieving non-spherical particle sample. The motion of rod-like particles in sieving process was simulated under the vertical and horizontal vibration conditions. In case of vertical vibration, sieving rate decreases with increasing aspect ratio of rod-like particles. While, in case of horizontal vibration, sieving rate strongly depends on the aspect ratio of rod-like particles and decreases with aspect ratio. Sieving behavior also depends on the amplitude and frequency of vibration. Simulation results agree with experiments.
粉体工学会の論文