Y形导流墩对侧向进水泵站进水前池流态影响  

The Influence of Y-shaped Diversion Pier on Inflow Pattern in Side-intake Pumping Station

作　　者：张雄伟 奚斌[1] 奚望 王欣昱 徐健 吉睿 连延续 宋梓豪 ZHANG Xiong-wei;XI Bin;XI Wang;WANG Xin-yu;XU Jian;JI Rui;LIAN Yan-xu;SONG Zi-hao(College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009

出　　处：《水电能源科学》2024年第10期144-148,共5页Water Resources and Power

基　　金：国家自然科学基金项目(51541912);扬州大学大学生科创基金项目(XCX20230525)。

摘　　要：侧向进水泵站前池易形成回流或漩涡,造成进水流态分布不均等现象。由于Y形导流墩有较好的分流效果,为解决侧向进水泵站进水偏流、横向流速过大问题,对Y形导流墩位置和几何参数进行研究。基于正交试验法设计试验方案,构建5因素5水平的正交试验表,并对各方案进行数值模拟。以流速均匀度作为评价指标进行极差分析,结果表明Y形导流墩的位置设计对进水前池的影响大于几何参数的选定,并确定最优方案设计参数,使A-A断面轴向流速均匀度提升7.17%,横向流速加权平均角提升2%,进水前池流态改善明显。为使Y形导流墩更具有普适性,提出无量纲化参数,该参数可为此类型泵站工程Y形导流墩使用设计提供一定的参考。The lateral inflow to the pump station's forebay often leads to the formation of backflow or eddies,causing uneven distribution of the inflow flow pattern.To address the issues of lateral inflow deviation and excessive transverse flow velocity,we conducted a study on the position and geometric parameters of a Y-shaped diversion pier.Based on the orthogonal experimental design method,we constructed an orthogonal experimental table with 5 factors and 5 levels,and performed numerical simulations for each scheme.The uniformity of flow velocity was taken as the evaluation criterion for range analysis.The results showed that the position of the Y-shaped diversion pier had a greater impact on the inflow forebay than the geometric parameters.The optimal scheme parameters are determined,which A-A improved by 7.17%and the weighted average angle of transverse flow velocity increased by 2%.The flow pattern in the inflow forebay is significantly improved.In order to make the design of the Y-shaped diversion pier universally applicable,the parameters are dimensionless,providing a reference for the design of Y-shaped diversion piers in similar pump station projects.

关 键 词：正交试验法 Y形导流墩 侧向进水 几何参数 

分 类 号：TV675[水利工程—水利水电工程] TV137