摘要
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。该型式对其他电站进水口设计具有参考价值。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。现行电站进水口体形设计规范就是根据本试验研究成果为依据进行修订的。
A symmetric bell-mouth shape of small-size inlet is adopted in the experimental test to optimize the Three Gorges hydropower intake. This new inlet, different from the traditional large size, can meet the requirements of flow pattern, reduce the head loss and improve the stress state of dam body. The test adopts a method of increasing the flow rate or raising the reservoir storage level. This method is shown effective in improving the test precision of intake head loss. The design specification of hydropower intake configuration has been revised according to the test results of this paper. This type of small inlet may provide a valuable reference for other similar hydropower stations.
出处
《水力发电学报》
EI
CSCD
北大核心
2009年第6期32-35,共4页
Journal of Hydroelectric Engineering
关键词
水力学
三峡工程
电站进水口体形
小进口
进水口流态
水力损失
加大流量法
hydraulics
Three Gorges project
hydropower station inlet configuration
small inlet
inlet flow patterm
water head loss
increasing discharge method
