| 泵站钟形进水流道三维湍流数值模拟与试验研究 |
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| 引用本文： | 何钟宁,周正富,陈松山,潘光星.泵站钟形进水流道三维湍流数值模拟与试验研究[J].灌溉排水学报,2007,26(5):79-81. |
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| 作者姓名： | 何钟宁 周正富 陈松山 潘光星 |
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| 作者单位： | 扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 摘 要： | 采用雷诺方程(RANS)和标准k-ε湍流模型,数值模拟了钟形进水流道6种不同喇叭管悬空高度和4种不同流量方案下的流道内流场,分析了钟形进水流道关键部位的流态特征,揭示了钟形进水流道特征断面的速度分布规律。采用五孔探针实测了流道特征断面流速分布,并以流道出口速度均匀度和速度加权入流角为目标函数,分析比较了各方案的数值计算与试验实测结果,提出了钟形流道喇叭口悬空高的合理取值范围。
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| 关 键 词： | 泵站 钟形进水流道 数值模拟 试验研究 |
| 文章编号： | 1672-3317（2007）05-0079-03 |
| 修稿时间： | 2007-05-08 |
3-D Turbulent Numerical Simulation and Experiment Study on Bell-like Suction Box in Pumping Station |
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| HE Zhong-ning,ZHOU Zheng-fu,CHEN Song-shan,PAN Guang-xing.3-D Turbulent Numerical Simulation and Experiment Study on Bell-like Suction Box in Pumping Station[J].Journal of Irrigation and Drainage,2007,26(5):79-81. |
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| Authors: | HE Zhong-ning ZHOU Zheng-fu CHEN Song-shan PAN Guang-xing |
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| Institution: | Yangzhou University, Yangzhou 9.25009, China |
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| Abstract: | Reynolds-averaged equations and the standard k-ε turbulent model are applied to simulate the internal flow pattern in bell-like suction box of large pumping stations.The series numerical simulation schemes including six different heights from the bottom floor to the open and four flow rates are designed.The velocity vectors on special cross section are revealed and the velocity distribution laws are obtained.The velocity distribution is probed by a 5-hole globe probe system on the outlet section of bell-like intake conduit.Regarding velocity distribution uniformity and velocity-weighted average swirl angle as objective criterion and comparing the numerical calculated results with experimental data,a reasonable range of the bell-like suction height(or clearance from floor) is put forward. |
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| Keywords: | pumping station bell-like suction box numerical simulation experiment study |
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