Evaluation of the effect of wall boundary conditions on numerical simulations of circulating fluidized beds

- A 2D circulating fluidized bed riser system is modeled.
- The specularity coefficient has a strong effect on the solid particle distribution near the wall.
- The particle-wall restitution coefficient has less effect on solid particle distribution near the wall than that of specularity coefficient.
- The specularity and particle-wall restitution coefficients affect the lateral velocity of the solid particles near the wall.