混流式转轮的优化设计

Optimum Design of Francis Runner

以优化参量，空化系数最小和损失系最小为目标，并与全三维反问题计算相结合，对混流式水轮机转轮进行了优化设计。计算表明，通过优化是可以改善转轮的性能并可通过调整权系数实现对转轮性能的控制。

By taking the hydraulic losses of the runner and the cavitation factor of the blade as the objective function, an optimum method is developed in this paper. The optinlization results show that the hydraulic performances of the runner can be improved and controlled by the proposed method.