基于两类流面理论,本文建立了混流式转轮内部流动的准三元计算与叶片设计的通用模型。以(?)_(θγ)及厚度分布为已知条件,建立了S_1流面上的叶片设计模型。计算实例表明,按本文模型进行设计,可以得到满足给定负荷分布及厚度分布的转轮,为转轮设计提供了一种新的有效的计算模型和方法。 Based on two types of flow surface theory, a general model of quasi-ternary calculation and blade design for flow inside Francis runner is established. Based on the known conditions of (?) _ (Θγ) and thickness distribution, the blade design model on S_1 flow surface is established. The calculation example shows that according to the design of the model, the runner with the given load distribution and thickness distribution can be obtained, which provides a new effective calculation model and method for runner design.