The Discrete Element Method (DEM) is useful for modelling granular flow. The accuracy of DEM modelling is dependent upon themodel parameter values used. Determining these values remains one of the main challenges. In this study a method for determining theparameters of cohesionless granular material is presented. The particle size and density were directly measured and modelled. The particleshapes were modelled using two to four spheres clumped together. The remaining unknown parameter values we ...