Comparison of multisphere method and advanced multisphere method

DEM simulation of chute flow: Comparison of multisphere method and advanced multisphere method

This DEM simulation of chute flow shows a comparison of two different numerical models for shape representation: the multisphere method and the advanced multisphere method. While both of them resolve the particle shape by joining multiple spheres to a rigid body, only the advanced multisphere method recovers the correct coefficient of restitution. The different can be seen by comparing the momentum of the particle stream after the deflection by the plate