考虑碰撞的两相湍流概率密度函数代数应力模型

A Algebraic Stress Model Based on The Two-Phase Flovo PDF Model Considering Particles Collision

该文在考虑碰撞作用的湍流两相概率密度函数模型基础上,在二维空间直角坐标系下推导出了颗粒相质量守恒、动量守恒和颗粒应力守恒方程组的代数形式,进而得到代数应力模型。将代数应力方程应用于线性剪切两相流,计算数值与实验结果进行比较,验证模型的正确性。

Based on the Zaichik PDF model of two - phase turbulence flow with particles collision, the paper deduces equations which express the conservation of mass, conservation of momentum and conservation of Reynold stress of particle phase in two- dimensional orthogonal reference frame, and get algebraic equations of the Reynolds stress, Then the equations is applied to linear shearing two- phase turbulence flow, and the computing value is compared with the experimental result so that the correctness of the model is proved.