| 水电站虹吸式进水口工作过程CFD模拟 |
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| 引用本文： | 侯才水,陈龙,王志寰.水电站虹吸式进水口工作过程CFD模拟[J].水利水电科技进展,2012,32(4):10-13. |
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| 作者姓名： | 侯才水 陈龙 王志寰 |
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| 作者单位： | 1. 福建水利电力职业技术学院水利工程系,福建水安,366000
2. 武汉大学水资源与水电工程科学国家重点实验室,湖北武汉,430072 |
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| 摘 要： | 采用RNGk ε湍流模型和CFD软件对水电站虹吸式进水口的虹吸形成过程(含抽真空过程)和虹吸破坏过程进行数值模拟研究,分析了虹吸管道内压强、流速、水气界面的分布及其变化情况。研究结果表明:虹吸式进水口工作过程中驼峰顶部的压强值最低;抽真空速度与压力波动幅度成正比;虹吸破坏后驼峰两侧水体平稳性存在较大差异。
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| 关 键 词： | 水电站 虹吸式进水口 工作过程 CFD模拟 |
| 修稿时间： | 2012/8/29 0:00:00 |
CFD simulation of operating process in siphon intake of hydropower station |
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| HOU Cai-shui
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CHEN Long
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WANG Zhi-huan.CFD simulation of operating process in siphon intake of hydropower station[J].Advances in Science and Technology of Water Resources,2012,32(4):10-13. |
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| Authors: | HOU Cai-shui CHEN Long WANG Zhi-huan |
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| Affiliation: | 1.Department of Hydraulic Engineering,Fujian College of Water Conservancy and Electric Power,Yong’an 366000,China;2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | The siphon formation process(including the vacuum process) and failure process in the siphon intake of a hydropower station were simulated with an RNG k-ε turbulence model and CFD software.The distribution of the pressure,velocity,and air-water interface within the siphon pipes were analyzed.The results show that: the value of the pressure is the lowest at the top of the hump during the operating process;the vacuum pumping speed is directly proportional to the fluctuation range of pressure;and the stability of water on both sides of the hump is quite different after the siphon failure. |
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| Keywords: | hydropower station siphon intake operating process CFD simulation |
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