| 泵站新型箱涵式出水流道三维湍流数值模拟研究 |
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| 引用本文： | 陈松山,何钟宁,周正富,潘光星,严登丰. 泵站新型箱涵式出水流道三维湍流数值模拟研究[J]. 灌溉排水学报, 2007, 26(5): 18-21 |
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| 作者姓名： | 陈松山 何钟宁 周正富 潘光星 严登丰 |
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| 作者单位： | 1. 扬州大学,能源与动力工程学院,江苏,扬州,225009
2. 扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 摘 要： | 采用雷诺平均纳维-斯托克斯方程(RANS)和标准k-ε湍流模型,运用SIMPLEC算法,数值模拟了新型箱涵式出水流道5种不同喇叭管悬空高度和无喇叭管方案、4种不同后壁距以及3种不同后壁型线流道内流场,预测了旋涡发生位置和形态,分析了流道纵向剖面、喇叭口及出水柱状面上速度分布规律。数值计算得出了各方案流道摩阻系数,并与试验结果进行了比较,提出了新型箱涵式出水流道优化设计方法。
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| 关 键 词： | 泵站 出水流道 数值模拟 |
| 文章编号： | 1672-3317（2007）05-0018-04 |
| 修稿时间： | 2007-02-27 |
Numerical Simulation of Three-dimensional Turbulent Flow for a New Tank-style Outlet Passage in Large Pumping Stations |
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| CHEN Song-shan,HE Zhong-ning,ZHOU Zheng-fu,PAN Guang-xing,YAN Deng-feng. Numerical Simulation of Three-dimensional Turbulent Flow for a New Tank-style Outlet Passage in Large Pumping Stations[J]. Journal of Irrigation and Drainage, 2007, 26(5): 18-21 |
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| Authors: | CHEN Song-shan HE Zhong-ning ZHOU Zheng-fu PAN Guang-xing YAN Deng-feng |
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| Affiliation: | 1.Yangzhou University College of Energy and Power Engineering; 2.College of Hydraulic Science and Engineering, Yangzhou 225009, China |
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| Abstract: | Reynolds-Averaged Navier-Stokes(RANS) equation is applied for the simulation of 3D flow field in a new tank-style outlet passage of large pumping stations.The standard k-ε turbulence model and SIMPLEC algorithm is adopted in the calculation.The inner flow status and various types of vortices are predicted in the new tank-style outlet passage about five different heights of discharge bell,a scheme without horn tube,four different distances from the center of discharge bell to back-wall and three types of back-wall.The laws of velocity distribution are analyzed on the cross profile,the bell mouth and the columnar face of outlet passage.Comparing with the test results,the friction coefficient about various schemes are obtained by Numerical calculation.Optimum design method in the new tank-style outlet passage is put forward. |
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| Keywords: | pumping station outlet passage numerical simulation |
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