Continuum modelling of segregating tridisperse granular chute flow.

ABSTRACT: Segregation and mixing of size multidisperse granular materials remain challenging problems in many industrial applications. In this paper, we apply a continuum-based model that captures the effects of segregation, diffusion and advection for size tridisperse granular flow in quasi-two-dimensional chute flow. The model uses the kinematics of the flow and other physical parameters such as the diffusion coefficient and the percolation length scale, quantities that can be determined directly from experiment, simulation or theory and that are not arbitrarily adjustable. The predictions from the model are consistent with experimentally validated discrete element method (DEM) simulations over a wide range of flow conditions and particle sizes. The degree of segregation depends on the Péclet numb

SUBMITTER: Deng Z 

PROVIDER: S-EPMC5897752 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature