泵站虹吸式出水管设计参数对水力特性影响的研究

采用RNG k-ε紊流模型、有限体积法和结构化网格,对不同设计参数下的泵站虹吸式出水管进行了数值模拟,量化分析了主要设计参数对虹吸形成时间与水力损失的影响。结果表明：上升角宜取30°-45°;驼峰断面高宽比宜取0.6-1.0;曲率半径宜取0.8D-1.4D;下降段下降角宜取60°-82°。...

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Bibliographic Details
Published in江西农业学报 Vol. 27; no. 3; pp. 97 - 100
Main Author 谭淋露 宋猛猛 卢江海 姚玲霞
Format Journal Article
LanguageChinese
Published 江西省水利科学研究院,江西 南昌,330000%西藏自治区水利电力规划勘测设计研究院,西藏 拉萨,850000 2015
Subjects
影响
水力特性
泵站
虹吸式出水管
设计参数
Siphonic outlet pipe
水力特性
Design parameters
虹吸式出水管
影响
Hydraulic characteristic
Pumping station
泵站
Effect
设计参数
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Summary:采用RNG k-ε紊流模型、有限体积法和结构化网格,对不同设计参数下的泵站虹吸式出水管进行了数值模拟,量化分析了主要设计参数对虹吸形成时间与水力损失的影响。结果表明：上升角宜取30°-45°;驼峰断面高宽比宜取0.6-1.0;曲率半径宜取0.8D-1.4D;下降段下降角宜取60°-82°。
Bibliography:TAN Lin-lu,SONG Meng-meng,LU Jiang-hai,YAO Ling-xia （1. Jiangxi Hydraulic Research Institute, Nanchang 330000, China; 2. Tibet Hydraulic Waterpower Planning and Designing Research Institute, Lasa 850000, China）
36-1124/S
The RNG k- ε turbulent model,finite volume method,and structured grids were adopted to numerically simulate the interior three- dimensional flow of siphonic outlet pipe with different design parameters in pumping station. On the basis of numerical simulation results,the effects of main design parameters of siphonic outlet pipe on the siphon forming time and hydraulic loss were quantitatively analyzed. The results indicated that： the climbing angle should be 30° - 45°; the height- width ratio of hump section should be 0. 6 - 1. 0; the curvature radius should be 0. 8D - 1. 4D; the descending angle of descending branch should be60° - 82°.
Pumping station; Siphonic outlet pipe; Design parameters; Hydraulic characteristic; Effect
ISSN:1001-8581