| 琴键堰不同堰高泄流特性的数值模拟 |
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| 引用本文： | 李珊珊,李国栋,苗洲,陈刚. 琴键堰不同堰高泄流特性的数值模拟[J]. 水利水电技术, 2016, 47(5): 60-64 |
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| 作者姓名： | 李珊珊 李国栋 苗洲 陈刚 |
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| 作者单位： | （1.西安理工大学西北旱区生态水利工程国家重点实验室培育基地,陕西西安710048;2.安康学院,陕西安康725000） |
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| 摘 要： | 采用基于VOF自由面捕捉的全三维紊流数值模拟的方法,对琴键堰各个流量断面进行了泄流量的分析。通过比较五种不同堰高的琴键堰的泄流情况,分别从各个断面的流量所占的百分比、单宽流量和泄流效率等方面,得出了堰高对各断面的影响,从而得出了堰高越高泄流能力越强的结论,为今后的工程和研究提供参考。
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| 关 键 词： | 琴键堰 泄流能力 数值模拟 堰高 |
| 收稿时间： | 2015-08-13 |
Numerical simulation study on discharge characteristics of piano-key weir with various heights |
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| LI Shanshan,LI Guodong,MIAO Zhou,CHEN Gang. Numerical simulation study on discharge characteristics of piano-key weir with various heights[J]. Water Resources and Hydropower Engineering, 2016, 47(5): 60-64 |
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| Authors: | LI Shanshan LI Guodong MIAO Zhou CHEN Gang |
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| Affiliation: | （1.State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area,Xian University of Technology,Xian710048,Shaanxi, China;2. Ankang University,Ankang725000,Shaanxi, China） |
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| Abstract: | With the method of VOF free-surface capturing-based full 3-D numerical simulation of turbulence,the discharges from all the discharge-sections of the piano-key weir are analyzed herein. Through the comparison among the discharges from five piano-key weirs with different heights,the impacts from the weir heights on all the discharge-sections are obtained from the aspects of the percentages of the discharges from all the sections,uinit-width discharges,discharge efficiencies,etc. respectively,thus it is concluded that the higher the weir height is,the stronger the discharge capcity is to be,and then a basis is laid for the study and construction of the relevant project. |
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| Keywords: | piano-key wie discharge capacity numerical simulation weir height |
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