Abstract: In a D300mm jetting fluidized bed with a three-nozzle distributor, the voidage distribution was simulated by two fluid model combined with kinetic theory of granular flow. It was found that the simulating results were in good agreement with the experimental data. Based on the model, the effects of various elevation angles on the voidage distribution in the fluidized bed were discussed. The results showed that the change of nozzle elevation angles would influence the voidage distribution in the fluidized bed.