固－液两相流中的一种湍流模式

A Turbulence Model for Solid-liquid Two-phase Flows

定义了体积分数速度，并由此建立了固－液两相流中的一种湍流模式（Ｋ─ε双方程模式），模化了动量方程、Ｋ方程及ε方程。本模型中，考虑了相间的速度滑移，颗粒间的作用及相间作用，对一管湍流中固－液混合物流动的预测表示与实验结果比较一致。

A turbulence model has been developed for predicting solid-liquid two-phase flow. The volume fraction velocities are decfined,Closure of the momentum equations, K-equation and ε-equation is completed. In this model,the liquid-particle skip velocity,the particle interactions and the liquid-particle interactons are considered. A solid-liquid pipe turbulent flow are successfully predicted by model. The numerical predictions show good agreement with the experiments.