长洲鱼道挡板结构优化研究
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摘要
广西长洲鱼道是珠江口以上第一座大型水利工程,也是我国自主设计的第一座大型鱼道,为中华鲟等六种国家级保护鱼类的主要洄游通道,为典型的竖缝鱼道。以长洲鱼道为研究对象,以流体力学理论为基础,采用理论分析、试验研究及数值模拟相结合的方法,通过改变孔口尺寸对池室内流速分布的影响进行分析。结果表明在正常运行水位为3 m时,改变正方形孔口边长,对于鱼道内流场流速、水流结构均会产生较大影响;当孔口边长为1.5 m时,最适宜目标鱼类的洄游。研究结果为竖缝鱼道的设计提供一定参考依据。图9幅。
引文
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[3] 杨军严.初探水利水电工程阻隔作用对水生生物资源及水生态环境影响与对策[J].西北水力发电,2006,4(22):22-29.
[4] Liu M,Rajaratnam N.Mean flow and turbulence structure in vertical slot fishways [J].Journal of Hydraulic Engineering,2014,132(8):765-777.
[5] 高东红.三维鱼道水力特性及鱼体上溯行进能力数值模拟研究[D].大连:大连理工大学,2015.
[6] 环境保护部环境工程评估中心鱼.类保护(鱼道专题)技术研究与实践[M].北京:中国环境科学出版社,2011.
[7] Nallamuthu Rajaratnam,Gary Van der Vinne,Christos Katopodis.Hydraulics of vertical slot fishways[J].Journal of Hydraulic Eng1neering,1986,22(10):909-927.
[8] Laurent Tarrade,Alain Texier,Laurent Dav1d,Michel Larinier.Topolog1es and Measurements of Turbulent Flow in Vertical Slot Fishways[J].Hydroblologla,2008,609:177-188.
[9] 徐体兵,孙双科.竖缝式鱼道水流结构的数值模拟[J].水利学报,2009,2(40):1386-1391.
[10] Jerónimo Puertas,Luis Cea,María Bermúdez.Computer application for the analysis and design of vertical slot fishways in accordance with the requirements of the target species [J].Ecological Engineering,2012(48):51-60.
[11] 农静.长洲水利枢纽工程鱼道设计[J].红河水,2008,27(5):50-54.
[12] SHAMLOO H,AKNOONI S,3D-Numerical simulation of the flow in pool and weir fishways[C].International Conference on Water Resources,Cmwr,2012.
[13] 阮天鹏.圆锥形堰式鱼道水力特性试验与数值模拟研究[D].西安:西安理工大学,2018.
[14] 刘鹄,程文,等.竖缝与孔口组合式鱼道流动特性模拟研究[J].水力发电学报,2017,36(6):38-46.
[15] 甘明阳.温度及镉、铜胁迫对四大游泳特性的影响[D].宜昌:三峡大学,2015.