水电站虹吸式进水口工作过程CFD模拟  

CFD simulation of operating process in siphon intake of hydropower station

作　　者：侯才水[1] 陈龙[2] 王志寰[2] 

机构地区：[1]福建水利电力职业技术学院水利工程系,福建永安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

出　　处：《水利水电科技进展》2012年第4期10-13,82,共5页Advances in Science and Technology of Water Resources

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。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 airwater 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.

关 键 词：水电站 虹吸式进水口 工作过程 CFD模拟 

分 类 号：TV732.1[水利工程—水利水电工程]