混流式转轮三维湍流流动计算方法

3D turbulence flow simulation for Francis turbine runner

本文研究了基于κε模型的全三维湍流计算技术在水轮机转轮流动计算中的应用方法． 文中给出了以求和下标表示的在贴体坐标下的湍流基本方程组， 介绍了计算中计算体、初边值的给定方法． 最后， 介绍了应用该程序对某电站水轮机所作优化后的主要流动计算结果显示．

This paper presents a practical method for simulation of flow field in Francis turbine runner by applying K\|ε turbulence model. Tensor representation of the governing equation under body\|fitted curvilinear coordinate system is derived by using Einstein's expressing method. The techniques for selecting control volume and determining the original value of boundary condition are introduced.