CFD-DEM simulations of riser geometry effect and cluster phenomena

In this paper the influence of inlet and outlet configurations a pseudo-2D fluidized riser on hydrodynamics (i.e. flow pattern cluster characteristics) are studied. A detailed comparison between experimental data full 3D CFD-DEM simulation results is performed. Solids volume fraction mass flux characterized particle clusters detected in our simulations compared to data. It shown that correct representation very important for solids holdup top section riser. The core-annulus behavior generally well predicted by model characteristics such as occurance velocity also good agreement with Finally, an outlook given future use approaches study flows.