Particle dynamics simulation of gravity driven granular poiseuille flow

Abstract

The gravity-driven flow of granular materials in a vertical channel is simulated us- ing molecular dynamics technique. The granular particles are modelled as smooth hard disks, so the simulations are performed in two dimensions. An event-driven algorithm proposed by Lubachevsky [51] has used to perform simulations. The con- trol paramters are : volume fraction of particles (?), normal restitution coefficient (en) that characterises the loss due to particle-particle collisions and tangential restitution coefficient (?w) that characterises the energy loss due to particle-wall collisions. We have studied various aspects of granular Poiseuille flow (GPF) over a range of the control paramters.