Numerical Simulation of the Dense Phase Conveying in Vertical Pipe

The gas-phase and granular-phase velocity distribution and pressure loss were obtained through the numerical simulation of the upwards flow characteristics in the vertical pipe by using an Euler-Euler two fluid model of dense gas-solid two phase flow based on the kinetic theory of dense gases and kinetic theory of granular.The numerical simulation model was applied to the dense-phase pneumatic conveying system with high pressure(the conveying pressure is 3 MPa,maximum solid-gas ratio is 426 kg/m~3) in vertical pipe.The pressure drop gradient predicted by the model is consistent with the experimental results.