Computational fluid dynamics simulation of a very dense liquid-solid flow using a Eulerian model

Segregation in a dense solid-liquid multiphase flow is complicated by its interactions between phases. In this paper, the segregation of dense solid-liquid flow was simulated using the Finite Volume Method. A Euler-Euler multiphase simulation was conducted for the dense solid-liquid flow. The flow in the viscous regime was evaluated using kinetic theory describing the flow of smooth, slightly inelastic, spherical particles. The friction between solid particles which occurs in the plastic regime was evaluated based on the concepts from critical soil mechanics. The challenge of simulating non-segregation behaviour of dense solid-liquid flow was discussed.