长江科学院院报 ›› 2019, Vol. 36 ›› Issue (2): 58-62.DOI: 10.11988/ckyyb.20170909

• 水力学 • 上一篇    下一篇

开孔导流墩几何参数对闸站工程前池整流效果的影响

徐波1,高琛2,夏辉3,陆伟刚1   

  1. 1.扬州大学 水利与能源动力工程学院,江苏 扬州 225127;
    2.江西省水利规划设计研究院, 南昌 330029;
    3.江苏省水利勘测设计研究院有限公司,江苏 扬州 225127
  • 收稿日期:2017-08-11 修回日期:2017-09-16 出版日期:2019-02-01 发布日期:2019-03-11
  • 通讯作者: 陆伟刚(1964-),男,江苏苏州人,教授,博士,博士生导师,主要从事泵站工程。 E-mail:wglu@yzu.edu.cn
  • 作者简介:徐 波(1984-),男,山东淄博人,讲师,博士,主要从事水工结构工程。E-mail:xubo@yzu.edu.cn
  • 基金资助:
    国家自然科学基金青年科学基金项目(51409227);江苏省博士后科研资助计划项目(1501115B);长江科学院开放研究基金资助项目(CKWV2016386/KY)

Influence of Geometric Parameters of Perforated Diversion Pier on Flow-rectifying Effect in Forebay of Sluice-pump Station Project

XU Bo1, GAO Chen2, XIA Hui3, LU Wei-gang1   

  1. 1.School of Water Resources and Power Engineering, Yangzhou University, Yangzhou 225127, China;
    2.Jiangxi Provincial Design and Research Institute of Water Conservancy and Hydropower, Nanchang 330029,China;
    3.Jiangsu Provincial Water Conservancy Survey and Design Institute Co., Ltd., Yangzhou 225127, China
  • Received:2017-08-11 Revised:2017-09-16 Published:2019-02-01 Online:2019-03-11

摘要: 为了改善闸站结合工程的泵站前池流态,采用计算流体力学(CFD)对闸站结合式泵站前池流态进行数值模拟,研究了开孔导流墩的长度、开孔宽度、相邻的孔口中心间距及开孔高度等因素对泵站前池流态的影响。结果表明:选择合适长度的导流墩能改善闸站结合工程的泵站流道进口的不良流态;在优选的长度下,进行导流墩不同开孔几何参数的对比计算,发现开孔导流墩长度为8.62D(D为水泵叶轮的直径)、开孔宽度为1.55D、相邻的孔口中心间距为2.16D、开孔高度为0.66h(h为前池水深)时,相比于其他几何参数的开孔导流墩,前池内流态能得到更好的改善,水泵入口流速分布更均匀,漩涡综合影响函数更低;CFD计算结果与模型试验结果基本吻合,研究成果可为闸站结合工程选择合适的导流墩提供参考。

关键词: 闸站结合工程, 前池流态, 开孔导流墩, 几何参数, 整流措施

Abstract: The flow field in the forebay of sluice-pump station combination project is simulated via computational fluid dynamics (CFD) to investigate the influences of geometric parameters of perforated diversion pier, including pier length, orifice width, distance between the center of adjacent two orifices, and the height of the opening, on the flow pattern in the forebay. Results suggest that an appropriate length of the diversion pier could improve the flow pattern at the inlet of the pumping station. At a preferred length together with the following conditions (length of diversion pier: 8.62D (D represents the diameter of water pump impleller); orifice width: 1.55D; distance between the center of adjacent two orifices: 2.16D; height of opening: 0.66h (h stands for the water depth of the forebay)), the flow pattern in the forebay is improved better than that under other geometrical parameters, the flow velocity distribution at the inlet is more uniform, and the whirlpool combined effect function becomes lower. CFD calculation results are in agreement with model test results, hence could offer reference for selecting proper diversion pier for sluice-pump station project.

Key words: sluice-pump station combination project, flow pattern in forebay, perforated diversion pier, geometric parameters, flow rectification measures

中图分类号: