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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。
The Navier-Stokes equations are solved using the NND scheme, and the DSMC method is used to simulate the solid-phase particle motion. The numerical simulation of the gas-solid two-phase flow field of the three-dimensional pipeline is carried out. The effect of solid particles on the flow field structure is analyzed. The calculation results show that the combination of DSMC method and CFD method is an effective way to solve the gas-solid two-phase flow problem.