混流式水轮机各过流部件的能量特性及损失一直是人们十分关心的问题，国内外学者在这一领域进行了一定的研究，但对高比转速水轮机的研究还不多。该文介绍了ｎｓ＝２６０的混流式水轮机能量特性及水力损失分布的实测结果，并对在最优工况下各过流部件的损失进行了估算，其值与实测结果较吻合，可用于性能预估．图１０表２参３ The energy characteristics and losses of Francis turbine flow-through components have always been people’s concern. Domestic and foreign scholars have done some research in this field, but there are not many studies on the turbocharged turbine. This paper introduces the measurement results of the energy characteristics and hydraulic loss distribution of Francis turbine with ns = 260, and estimates the losses of the flow components under the optimal conditions. The results are in good agreement with the measured results and can be used for the performance Estimated. Figure 10 Table 2 Reference 3