三峡电站进水口体形优化试验研究综述

为了优化三峡电站进水口体形，试验研究采用了与传统大进水口不同的小进水口体形方式，并将进水口的喇叭口段布置成对称状。这不仅使进水口流态满足了设计要求，水力损失小于大进口，而且改善了坝体的受力状况。该形式对其他电站进水口设计具有参考价值。同时采用加大流量法和提高库水位进行进水口段的水力损失试验，对提高试验精度是一个行之有效的方法。

Summa on hydropower station inlet configuration optimizing test research for Three Gorges Project

By means of test research, a small sized inlet with a symmetrical bell-mouth form instead of traditional large sized one will be adopted for the TGP's hydropower station. The flow-pattern of the small inlet not only can meet desired requirements and its water head loss is less than that of large one, but also it can improve stress state within dam body. This kind of small inlet may be served as valuable reference for other similar hydropower station. It is an effective method for improving test precision that the water head loss tests of hydropower station inlet section are performed by increasing discharge or raising reservoir water level.