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.
出处
《水电能源科学》
北大核心
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)
关键词
数值模拟
竖缝与堰组合式鱼道
流速
主流区
紊动能
numerical simulation
combined fishway consisting of vertical slot and weir
velocity
mainstream zone
turbulent kinetic energy
