The flow characteristics in a spouted-fluid bed differ from those in spouted or fluidized beds because of the injection of the spouting gas and the introduction of a fluidizing gas.The flow behavior of gas-solid phases was predicted using the Eulerian-Eulerian two-fluid model(TFM) approach with kinetic theory for granular flow to obtain the flow patterns in spouted-fluid beds.The gas flux and gas incident angle have a significant influence on the porosity and particle concentration in gas-solid spouted-fluid beds.The fluidizing gas flux affects the flow behavior of particles in the fountain.In the spouted-fluid bed,the solids volume fraction is low in the spout and high in the annulus.However,the solids volume fraction is reduced near the wall. The flow characteristics in a spouted-fluid bed differ from those in spouted or fluidized beds because of the injection of the spouting gas and the introduction of a fluidizing gas. Flow behavior of gas-solid phases was predicted using the Eulerian-Eulerian two- fluid model (TFM) approach with kinetic theory for granular flow to obtain the flow patterns in spouted-fluid beds.The gas flux and gas incident angle have a significant influence on the porosity and particle concentration in gas-solid spouted-fluid beds. fluidizing gas flux affects the flow behavior of particles in the fountain. the spouted-fluid bed, the solids volume fraction is low in the spout and high in the annulus.