Fracture, aggregation and segregation in dry, granular flows

Particle fracture, the formation of small particles as result breakage large ones, and aggregation, combination have important implications in industry (e.g. food processing, pharmaceutical production) geophysics (e.g., snow avalanches rock debris flows). Also, presence different size that from fracture aggregation can induce segregation, resulting migration to regions flow. Here, we formulate simple models for agglomeration analyze evolution measures relative concentration two sizes spheres due combined effects segregation dense, dry, granular flows. is influenced by frequency collisions, local number density spheres, particle kinetic energy. Segregation predicted using a theory proposed Larcher & Jenkins [2].