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A 2D and a 3D discrete element model (DEM) simulation of cohesive spherical particles are applied to assess the benefit of point source vibration to induce flow in wedge-shaped hoppers. The model is closely compared with a continuum model based on arch stability. A significant aspect of this study is the scaling of the continuum system to a discrete system of 500 particles in 2D and 2500 particles...
A two-dimensional discrete element model (DEM) simulation of cohesive polygonal particles has been developed to assess the benefit of point source vibration to induce flow in wedge-shaped hoppers. The particle–particle interaction model used is based on a multi-contact principle.The first part of the study investigated particle discharge under gravity without vibration to determine the critical orifice...
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