experimental and numerical study of hydrodynamic behavior in a spouted bed

This article presents an experimental and computational fluid dynamic cfd research on a typical spouted bed (sb)# at first, the hydrodynamic characteristics (circulation of solids in spouted bed) and empirical minimum spouting velocity (ums) and maximum spoutable height (hm) is presented# then the cfd simulation of the sb to predict the appropriate drag model is analyzed# a comparison of the results with the experimental data suggests that the huilin–gidaspow drag model is most suitable for the prediction of gas and solid flow pattern# for different particle diameters and temperatures, the ums and hm are obtained with good agreement with experimental data in this drag model# based on mathur–gishler and littman's correlations, the average deviation between the experimental and calculated ums and hm is 37% and 11#7%, respectively#