| 丁坝对弯道水流水力特性影响的研究 |
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| 引用本文： | 何婷婷,汪有科,史志鹏,张家骏.丁坝对弯道水流水力特性影响的研究[J].人民黄河,2011(12). |
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| 作者姓名： | 何婷婷 汪有科 史志鹏 张家骏 |
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| 作者单位： | 江苏建筑职业技术学院市政工程学院;西北农林科技大学水土保持研究所;河海大学水利水电学院; |
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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,利用RNG k-湍流模型封闭Reynods方程,VOF法追踪自由表面,通过有限体积法离散求解,模拟研究了不同弯道中心角情况下,丁坝对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,弯道水流水面横比降计算公式需要进行修正,应当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。
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| 关 键 词： | 丁坝 弯道水流 RNGk-模型 VOF法 |
Study on the Effects of Spur Dikes to Hydraulic Characteristics of Flow in Bend Channel |
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| HE Ting-ting,WANG You-ke,SHI Zhi-peng,ZHANG Jia-jun.Study on the Effects of Spur Dikes to Hydraulic Characteristics of Flow in Bend Channel[J].Yellow River,2011(12). |
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| Authors: | HE Ting-ting WANG You-ke SHI Zhi-peng ZHANG Jia-jun |
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| Affiliation: | HE Ting-ting1,WANG You-ke2,SHI Zhi-peng1,ZHANG Jia-jun3(1.Municipal Engineering College,Jiangsu Institute of Architectural Technology,Xuzhou 221116,China,2.Institute of Soil and Water Conservation,Northwest A&F University,Yangling 712100,3.Institute of Water Conservancy and Hydroelectric Power,Hohai University,Nanjing 210098,China) |
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| Abstract: | According to the problem of the effects of spur dikes to the flow characteristics in bend channel,the generalized model is established.Through the numerical simulation method,the RNG k-model was used to close Reynods equations,VOF method was used to track the free water surface,with the finite volume method to solve the equation,the paper simulated the effects of spur dikes to the flow characteristics in bend channel in different angled,analyzed the effects of spur dikes to the lateral superelevation of the... |
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| Keywords: | spur dikes bend channel flow RNG k-turbulence model VOF method |
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