Hydrodynamic Characteristics of Dense Conical Fluidized Bed: CFD Simulation and Experimental Verification

The hydrodynamic characteristics of dense conical fluidized bed were investigatedexperimentally and numerically. experimental studies have been carried out in a bedcontaining tio2 particles belonging to a/c boundary of geldart's classification with awide particle size distribution. pressure measurements and an optical fiber techniqueallowed determining the effect of high bed particles loading on the minimum fluidizationvelocity, local solid volume fraction and solid velocity. two-fluid model approach withthree different drag models and boundary conditions (bcs) consisting of no-slip, partialslip and free-slip bc is presented for the numerical predictions. in this paper, we showthe gidaspow drag function with k-? turbulent model by applying the partial-slip bc canimprove the numerical results at high particle loading.