An axi-symmetric multi-size particulate Eulerian-Eulerian flow simulation model of a hydrocyclone is presented in this paper. Finite volume formulation on a collocated grid is implemented. The broad particle size distribution is divided into a specific number of size classes. The air core diameter is estimated using empirical correlations. Pure carrier eddy viscosity field (computed using a mixing length model) is modified to account for the presence of multi-size particles. The computed pressure drop, particle size distribution (PSD) of the overflow and underflow, separation efficiency curve and cutsize diameter obtained from the numerical solution are compared with experimental results.

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