Prediction of flow behavior of particles in a tapered bubbling fluidized bed using a second-order moment-frictional stresses model

▸ The drag coefficient model is proposed in the tapered bubbling fluidized beds. ▸ A second-order moments with frictional stress model is proposed. ▸ A difference of second-order moments is found in the IS and OS regions. ▸ Anisotropy of the normal components of the second-order moments is found.