CFD-DEM simulation of a conical spouted bed operating with high density particles

Abstract

The hydrodynamics of a spouted bed operating with high density zirconia particles was studied by CFD-DEM simulations. The model was validated by experimental data. Simulation results were used to obtain radial and axial profiles of the particle velocity, solid hold-up and flux in the bed at two bed heights. The gas jet velocity profile in the spout was also studied. For calculation of the solid circulation time in the bed, axial positions of 50 particles were traced in time. The mean solids circulation time in the bed was found to be 1.5 s.