三维管道超声速气固两相流动的CFD/DSMC仿真

Three-dimensional supersonic gas-solid two-phase conduit flow with CFD/DSMC method

采用NND格式求解气相N-S方程,采用DSMC方法模拟固相颗粒运动,数值模拟了三维管道超声速气固两相流场,分析了固体颗粒对流场结构产生的影响。计算结果表明,将DSMC方法与CFD方法相结合是解决气固两相流动问题的一种有效途径。

With DSMC method employed to model the movement of solid particles and N-S equation solved with NND scheme, the 3D supersonic gas-solid two-phase conduit flow is numerically simulated. The effect of solid particles on flow field structure is analyzed. The results demonstrate that combination of DSMC method with CFD is an effective approach to solve the gas-solid two-phase flow problem.