Numerical simulation of dual-support leg fluidized bed

A numerical study on a gas-solid model to predict the particle flow structures of dual support-leg fluidized bed has been conducted. Due to the symmetry motion trajectory of the particles in the dual support-leg fluidized bed, unilateral furnace was taken into account in the model to simplify calculation. The results indicate that, without buffer set on the wall, three different zones can be distinguished in terms of granular flow mechanisms. The velocities of the upward flow without buffer set on the wall are much higher than that with buffer set.