汇流口水闸进水流态试验研究  

Experimental study on the inlet flow regime of confluence estuary sluice

作　　者：奚斌[1] 王贺 陈倩倩 孔庆昊 段元锋 郑雅珍 唐鹏 黄正军 黄冬玲 王汉强 陈春梅 XI Bin;WANG He;CHEN Qianqian;KONG Qinghao;DUAN Yuanfeng;ZHENG Yazhen;TANG Peng;HUANG Zhengjun;HUANG Dongling;WANG Hanqiang;CHEN Chunmei(School of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225127,China;Guannan County Water Conservancy Bureau,Lianyungang 222599,China;Taizhou Water Conservancy Bureau,Taizhou 225300,China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225127 [2]灌南县水利局,江苏连云港222599 [3]泰州市水利局,江苏泰州225300

出　　处：《扬州大学学报（自然科学版）》2022年第3期57-60,68,共5页Journal of Yangzhou University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51541912);“十二五”国家科技支撑计划资助项目(210BOD08B03-2)。

摘　　要：为缓解不同水力要素造成的汇流口水闸闸前流场复杂,易形成不良流态的问题,以武障河闸为研究对象,建立1∶50的水工模型,设计整流方案,结合数字粒子图像测速(digital particle image velocimetry,DPIV)系统采集的交汇口面层流场数据和光电流速仪测量的闸前断面流速,分析武障河闸过流流态,对比原方案与设计方案对过流均匀度的影响,确定优化整流方案.结果表明:鱼嘴式导水堤与镂空式整流底坎相结合的综合整流方案较好,当导水堤中心线与河道中心线夹角为9°、整流底坎位于闸前57 m处时,汇流口至闸前流态较为平顺,闸前段面流速均匀度达90.63%,过流效果较好.In order to alleviate the problem that the flow field in front of the gate of the confluence gate is complicated and easy to form bad flow state caused by different hydraulic factors,a 1:50hydraulic model is established and a rectification scheme is designed with the Wuzhang River gate as the research object.DPIV system is used to collect the data of interchange surface laminar flow field and the velocity of front section of gate measured by photoelectric current meter.The flow state of Wuzhang gate is analyzed,and the influence of the original scheme and the design scheme on the flow uniformity is compared to determine the optimized rectification scheme.The results show that the scheme combining fish mouth type diversion dike and hollow type rectification bottom is better.When the angle between the centre line of diversion dike and the centre line of the river is 9°and the rectification bottom is located 57min front of the gate,the flow pattern from the confluence to the gate is relatively smooth and the velocity uniformity of the front section of the gate reaches 90.63%and the overflow effect is better.

关 键 词：汇流口 水闸 DPIV 流速均匀度 导水堤 整流底坎 

分 类 号：TV675[水利工程—水利水电工程]