老龙口水利枢纽鱼道水力特性研究  

Study on Hydraulic Characteristics of Fishway for Laolongkou Hydro-junction Project

作　　者：龚丽[1] 白音包力皋[1] 穆祥鹏[1] 肖俊[1] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038

出　　处：《水电能源科学》2015年第5期73-76,96,共5页Water Resources and Power

基　　金：中国水利水电科学研究院重点科研专项(水基本科研1541)

摘　　要：为了解老龙口水利枢纽工程的竖缝与堰组合式鱼道的水力特性,采用RNGκ-ε湍流模型和VOF方法对该鱼道的水流结构特性及池室内主流、流速和紊动能进行了分析。结果表明,鱼道内水流结构稳定,竖缝处流速小于设计流速2.0m/s,且主流衰减明显,消能效果良好;同时兼具竖缝式和溢流堰式的特点,适合喜好各种水层的鱼类通过,尤其对喜跳跃鱼类非常有利,能满足过鱼对象的需求。In order to research the hydraulic characteristics of combined fishway consisting of vertical slot and weir for Laolongkou hydro-junction project, the RNG κ-ε turbulence model and VOF method are used to analyze the water struc tural characteristics, the mainstream, velocity and turbulent kinetic energy in pool. The results show that the flow struc- ture of combined fishway is stable; the maximum velocity of the vertical slot is less than the design velocity 2.0 m/s;the mainstream velocity attenuation is obvious and energy dissipation effect is satisfactory; this fishway has both of the char- acteristics of vertical slot fishway and weir type fishway, which is suitable for the fish at various water-layers to swim up- stream, especially for the fish species of like jumping , and it meets the demands of the target fish species.

关 键 词：数值模拟 竖缝与堰组合式鱼道 流速 主流区 紊动能 

分 类 号：S956.3[农业科学—水产养殖]