鄱阳湖水利枢纽工程鱼道结构型式对 池室水流结构的影响  

The Influence of Fishway Structure on the Flow Pattern of Poyang Lake Water Conservancy Project

作　　者：张辉 滕娟 颜志庆 ZHANG Hui;TENG Juan;YAN Zhi-qing(Eco-Environmental Research Department of Nanjing Hydraulic Research Institute,Nanjing 210029,China;Yangzhou Water Conservancy Engineering Construction Center,Yangzhou 225001,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China)

机构地区：[1]南京水利科学研究院生态环境研究所,南京210029 [2]扬州市水利工程建设中心,扬州225001 [3]南京水利科学研究院,南京210029

出　　处：《价值工程》2021年第21期84-86,共3页Value Engineering

基　　金：国家重点研发计划资助项目(2016YFC0502205)。

摘　　要：文章采用RNG k-ε模型与VOF方法对鄱阳湖水利枢纽工程鱼道下游入口仿自然段的水力特性进行模拟计算,并探讨了鱼道结构型式对池室水流结构的影响。结果表明,小幅度增加隔板长度不能有效增加回流区的面积,还会使主流迹线变得更加曲折;小幅度减小隔板长度会使得主流区流速明显增加,沿程流速衰减效果变差,但有利于改善回流区流态。此外,池室竖缝出口方向对水流流态也会产生较大的影响。The RNG k-εmodel and VOF method are used to simulate the hydraulic characteristics of the imitation section of the downstream entrance of the fishway of Poyang Lake Conservancy Project,and the influence of fishway structure on the flow structure of pond room is discussed.According to the study results,the area of the recirculation zone could not be effectively increased by increasing the length of the baffle slightly,but the path line would become more tortuous.The flow velocity in the mainstream zone would increase obviously and the attenuation rate would decrease by slightly reducing the length of the baffle,but the flow pattern in the recirculation zone would be improved.In addition,the direction of the vertical slot of the pond room also had a great influence on the flow pattern.

关 键 词：RNG k-ε模型 鄱阳湖水利枢纽工程 鱼道 水力特性 

分 类 号：TV61[水利工程—水利水电工程]