Effects of size polydispersity on segregation of spherical particles in rotating drum

To get insight into the segregation process of a polydisperse granular materials flow, we numerically investigated migration particles in rotating drum operating rolling regime by means discrete element method. Particle is analyzed through variation proportion different zones where flow property characterized. The shows to increase center radially and axially higher concentration small observed, while its decreases other with larger particles. Interestingly, find that leads radial axial which caused combination between exerted fluctuation forces on surrounding pressure gradient.