Particle velocity and flux distribution in a high solids concentration circulating turbulent fluidized bed

▸ A Divided Phase Cross-Correlation Method (DPCCM) is proposed. ▸ Particle velocities of dense and dilute phases are obtained using DPCCM. ▸ Gas-particle interaction dominates in the dilute phase. ▸ Particle-particle interaction dominates in the dense phases at low solids flux. ▸ Particle-particle and particle-backpressure interactions jointly dominate in the dense phases at high solids flux.