稠密气固两相流的直接数值模拟

Direct Numerical Simulation of Dense Gas solid Two phase Flows

分别用欧拉方法处理气相场和用拉格朗日方法处理离散颗粒场。在处理颗粒场时考虑到颗粒直径、比重、材料的刚度、摩擦系数等对颗粒运动的影响。用直接模拟法分别对漏斗流、球磨机以及喷动流化床内颗粒的运动进行了模拟。

Gas phase field and discrete particle field are treated respectively by a Eulerian method and a Lagrangian one. During the treatment of a particle field the effect of particle diameter, specific weight, rigidity of material and friction factor, etc on particle movement has been taken into account. A direct simulation method was employed to simulate funnel flow, the particle movement in a ball mill and a stouted bed. Moreover, tests were conducted to verify the simulation results obtained on the stouted bed.