| 水平旋流消能工水力学研究方法适宜性 |
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| 引用本文： | 南军虎,马保泰,王煜搏,牛争鸣,洪镝.水平旋流消能工水力学研究方法适宜性[J].水科学进展,2018,29(3):390-397. |
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| 作者姓名： | 南军虎 马保泰 王煜搏 牛争鸣 洪镝 |
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| 作者单位： | 1.兰州理工大学能源与动力工程学院, 甘肃 兰州 730050; |
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| 基金项目： | 国家自然科学基金资助项目（51509123）；甘肃省自然科学基金资助项目（1506RJZA110） |
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| 摘 要： | 为明晰原型观测、模型试验和数值模拟3种水力学研究方法对水平旋流消能技术的适宜性，基于公伯峡水平旋流洞体型，对比了3种方法的研究成果，得到各方法对不同参数的适宜性。结果表明:3种方法对宏观水流流态、旋流洞壁面压强、消能率的研究结果基本一致；模型试验和数值模拟的环状空腔长度与原型观测存在不同程度的差异，进而影响竖井内其他参数的准确性，工程设计中应对其进行必要的修正；数值模拟和模型试验是研究旋流空腔形态和旋流洞内流速的可行方法，能有效克服原型量测技术的局限，且数值模拟研究更具优势；1∶40及以上比尺的模型是研究起旋室通风井通风特性的有效方法。
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| 关 键 词： | 旋流消能工 水力学 原型观测 模型试验 数值模拟 |
| 收稿时间： | 2018-01-19 |
Adaptability of hydraulic research methods to the horizontal gyrating discharge tunnel |
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| NAN Junhu,MA Baotai,WANG Yubo,NIU Zhengming,HONG Di.Adaptability of hydraulic research methods to the horizontal gyrating discharge tunnel[J].Advances in Water Science,2018,29(3):390-397. |
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| Authors: | NAN Junhu MA Baotai WANG Yubo NIU Zhengming HONG Di |
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| Institution: | 1.Lanzhou University of Technology, Lanzhou 730050, China;2.Xi'an University of Technology, Xi'an 710048, China;3.Yellow River Upstream Hydropower Limited Liability Company, Xining 810209, China |
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| Abstract: | Prototype measurements, physical modeling experiments, and numerical simulation are effective tools for studying hydraulic issues related to water conservancy and hydropower projects. To investigate the adaptability of these three methods to a new energy dissipation technology called the horizontal gyrating discharge tunnel, which is based on the Gongboxia horizontal gyrating discharge tunnel, the results obtained by applying the three methods were compared and the adaptability of the methods for different parameters was determined. The results indicate that the simulated results of the three methods are in agreement for the macroscopic flow pattern, pressure near the wall, and energy dissipation ratio. The annular cavity length of the physical models and numerical simulation are different from the results of prototype measurement, which further affects the accuracy of the hydraulic parameters in the vertical shaft section; therefore, it is necessary to correct it in engineering design. The numerical simulation and the model test are feasible methods to study gyrating cavity shape and velocity in the gyrating discharge tunnel and can effectively overcome the limitations of prototype measurement technology; further, the numerical simulation has many advantages. A 1:40 and above scale model is an effective method to study the ventilation characteristics of the ventilating shaft in a horizontal gyrating discharge tunnel. The results can be used for the selection of research methods and correction of results for this type of hydraulic issue. |
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| Keywords: | horizontal gyrating discharge tunnel hydraulics issue prototype measurement physical model numerical simulation |
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