| 溪洛渡泄洪洞掺气减蚀设施及体型优化的试验研究 |
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| 引用本文： | 焦爱萍,张春满,刘宪亮.溪洛渡泄洪洞掺气减蚀设施及体型优化的试验研究[J].灌溉排水学报,2008,27(2). |
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| 作者姓名： | 焦爱萍 张春满 刘宪亮 |
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| 作者单位： | 1. 北京航空航天大学,流体力学研究所,北京,100083;黄河水利职业技术学院,河南,开封,475001
2. 黄河水利职业技术学院,河南,开封,475001 |
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| 基金项目： | 国家自然科学基金
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国家自然科学基金 |
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| 摘 要： | 结合溪洛渡水电站3号泄洪洞,在大比尺水工模型试验的基础上,对目前高水头明流泄洪洞掺气减蚀设施和体型的典型设计方案进行修正和优化研究。试验表明:通过采用掺气跌坎和挑坎相结合的组合形式、在反弧段前增设一道掺气坎、缩短渥奇曲线段的长度和减小反弧段的圆心角等措施,可明显改善掺气效果,增大反弧段前掺气坎的掺气能力,从而有效减小和消除反弧段末端掺气盲区。该研究对于高水头、大流量明流泄洪洞掺气设施和体型的合理设计具有十分重要的价值。
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| 关 键 词： | 高速水流 掺气坎 空蚀 体型优化 大比尺水工模型试验 |
Experimental Research on Air Entrainment and Decreasing Erosion Instrument and Optimizing Bodily Form of Xiluodu Spillway Tunnel |
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| JIAO Ai-ping,ZHANG Chun-man,LIU Xian-liang.Experimental Research on Air Entrainment and Decreasing Erosion Instrument and Optimizing Bodily Form of Xiluodu Spillway Tunnel[J].Journal of Irrigation and Drainage,2008,27(2). |
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| Authors: | JIAO Ai-ping ZHANG Chun-man LIU Xian-liang |
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| Institution: | JIAO Ai-ping1,2,ZHANG Chun-man1,LIU Xian-liang2(1.Institute of Fluid Mechanics,Beijing University of Aeronautics , Astranautics,Beijing 100083,China,2.Yellow River Conservancy Technical Institute,Kaifeng 475001,China) |
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| Abstract: | The essay based on the trial of large scale hydropower project model,much study has carried out aiming at Xiluodu Water Power Station of No 3 spillway tunnel.Now the research is going on.The experimentation indicates that some measure can better the effect and ability of air entrainment and reduce or eliminate the blind air entrainment section,such as applying to air entrainment plunge and flip bucket combination type,adding one air entrainment bank in the front of flip bucket,shortening the WES line segmen... |
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| Keywords: | spillway tunnel air entrainment bank air erosion optimizing bodily form large scale hydropower project model test |
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