camera iphone 8 plus apk DEM Simulation of Particle Stratification and Segregation in Stockpile Formation

Dizhe Zhang (1), Zongyan Zhou (1,*), and David Pinson (2),
(1) Laboratory for Simulation and Modelling of Particulate Systems (SIMPAS), Department of Chemical Engineering, Monash University, VIC 3800, Australia
(2) BlueScope Steel, Port Kembla, NSW 2505, Australia

Granular stockpiles are commonly observed in nature and industry, and their formation has been extensively investigated experimentally and mathematically in the literature. One of the striking features affecting properties of stockpiles are the internal patterns formed by the stratification and segregation processes. In this work, we conduct a numerical study based on DEM (discrete element method) model to study the influencing factors and triggering mechanisms of these two phenomena. We found that it is a void-filling mechanism that differentiates the motions of particles with different sizes. This mechanism drives the large particles to flow over the pile surface and segregate at the pile bottom, while it also pushes small particles to fill the voids between large particles, giving rise to separate layers. Consequently, this difference in motion will result in the observed stratification and segregation phenomena.

camera iphone 8 plus apk DEM Simulation of Particle Stratification and Segregation in Stockpile Formation
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Science & Technology	Upload TimePublished on 14 Jun 2017

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