三维水流数值模拟

Numerical modelling of 3D turbulent flow

本文针对三维水流特性，引入通度概念处理不规则计算边界，用ＶＯＦ法追踪自由表面，采用修正的Ｋ－ε模型封闭Ｒｅｙｎｏｌｄｓ方程，分别计算了溢流坝水流及消力池中水跃．计算结果较好地与实验结果符合．

A modified K-εturbulence model is derived and the governing equations of turbulent flow for irregular boundary are developed by analyaing the solid-liquid two-phase theoretical flow model. A partial-cell parameter is introduced to treat irregular boundary. It shows that the calculated results are in good agreement with the experimental data.