| 丁坝对弯道水流特性影响的数值分析 |
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| 引用本文： | 史志鹏,何婷婷,刘家春,张家骏. 丁坝对弯道水流特性影响的数值分析[J]. 水电能源科学, 2012, 30(3): 87-89,214 |
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| 作者姓名： | 史志鹏 何婷婷 刘家春 张家骏 |
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| 作者单位： | 1. 江苏建筑职业技术学院市政工程学院,江苏徐州,221116
2. 河海大学水利水电学院,江苏南京,210098 |
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| 摘 要： | 针对丁坝对弯道水流水力特性影响的问题,建立了相应的概化模型,通过数值模拟的方法研究了不同角度下丁坝对弯道水流特性、弯道水流横向水面超高和流速场的影响。结果表明,在丁坝影响下,弯道水流横向水面横比降计算公式应考虑丁坝对河道的束窄、丁坝尺寸和弯道角度等综合因素的影响进行修正,为深入探讨弯道水流特性奠定了基础。
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| 关 键 词： | 丁坝 弯道水流 数值分析 RNGκ-ε模型 VOF方法 |
Numerical Analysis on the Effects of Spur Dikes on Flow Characteristics in Bend Channel |
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| SHI Zhipeng,HE Tingting,LIU Jiachun and ZHANG Jiajun. Numerical Analysis on the Effects of Spur Dikes on Flow Characteristics in Bend Channel[J]. International Journal Hydroelectric Energy, 2012, 30(3): 87-89,214 |
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| Authors: | SHI Zhipeng HE Tingting LIU Jiachun ZHANG Jiajun |
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| Affiliation: | College of Municipal Engineering, Jiangsu Institute of Architectural Technology, Xuzhou 221116, China;;College of Municipal Engineering, Jiangsu Institute of Architectural Technology, Xuzhou 221116, China;;College of Municipal Engineering, Jiangsu Institute of Architectural Technology, Xuzhou 221116, China;;College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China |
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| Abstract: | According to the problem of the effects of spur dikes on flow characteristics in bend channel,this paper establishes the generalized model to simulate the influence of spur dike on flow characteristics,lateral superelevation of the water surface and velocity field in bend channel under different angles through the numerical simulation method.The results show that under the effects of spur dike,the formula of the lateral superelevation of the water surface need to be amended,and a reasonable formula for the lateral slope of the water surface should take into account the effect of spur dike on the river’s narrow beam,spur dike size,bend angles and other comprehensive factors,which laid the foundation of further research on the bend flow characteristics. |
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| Keywords: | spur dike bend channel flow numerical analysis RNG κ-ε turbulence model VOF method |
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