| 跌坎型消力池与Y形宽尾墩联合消能试验研究 |
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| 引用本文： | 叶茂,姜跃良,蒲云娟,王波. 跌坎型消力池与Y形宽尾墩联合消能试验研究[J]. 水利水电技术, 2015, 46(12): 61-64 |
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| 作者姓名： | 叶茂 姜跃良 蒲云娟 王波 |
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| 作者单位： | （1.中国电建集团成都勘测设计研究院有限公司，四川成都611130；2.四川大学水力学与山区河流开发保护国家重点实验室，四川成都610065） |
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| 摘 要： | 牙根二级水电站具有高水头、大流量、窄河谷的特点,结合其底流消能进行了模型试验研究。通过反弧末端加设跌坎,降低了消力池的临底流速,对不同的跌坎高度进行比较,总结了跌坎池深比对淹没水跃的影响。通过表孔加设Y形宽尾墩,进一步降低脉动压力和临底流速,增强了消能效果,为工程设计提供了有力支持。
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| 关 键 词： | 模型试验；跌坎；消力池；宽尾墩 牙根二级水电站 |
| 收稿时间： | 2015-08-13 |
Experimental study on combined energy dissipation of drop-sill stilling pool with Y-type flaring pier |
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| YE Mao,JIANG Yueliang,PU Yunjuan,WANG Bo. Experimental study on combined energy dissipation of drop-sill stilling pool with Y-type flaring pier[J]. Water Resources and Hydropower Engineering, 2015, 46(12): 61-64 |
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| Authors: | YE Mao JIANG Yueliang PU Yunjuan WANG Bo |
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| Affiliation: | （1.PowerChina Chengdu Engineering Corporation, Chengdu611130, Sichuan， China;2.State Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering，Sichuan University, Chengdu610065, Sichuan， China） |
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| Abstract: | Yagen II Hydropower Station has the features of high water head, large flow rate and narrow valley, and then a model experimental study is made in combination with its underflow energy dissipation. Through adding drop-sill at the end of the ogee section, various heights of the drop-sill are compared, while the effect of the sill-pool depth ratio on the submerged hydraulic jump is summarized as well. With arranging additional Y-type flaring pier for the crest outlet, the fluctuating pressure and the underflow velocity are further lowered, thus the dissipation effect is enhanced, and a powerful support is provided for the engineering design concerned. |
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| Keywords: | model experiment drop-sill stilling pool flaring pier Yagen II Hydropower Station |
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