摘要
采用原位观测试验、鱼类分布水声学探测调查与流场数值模拟相结合的方法,分析鱼类洄游对流场特性的偏好特征。构建崔家营枢纽坝下流场数值模拟模型,对洄游季枢纽不同运行条件下的下游流场进行计算,统计水深、流速等水力要素分布特征;结合同期下游鱼类集群分布探测,通过对鱼类聚集分布与流场分布特征的综合比对分析,揭示鱼类集群对流场的响应关系,提出鱼类对流场特征的偏好性曲线,为科学制定崔家营枢纽生态调度方案和其他类似生态调度工程建设提供参考和借鉴。
The characteristics of fish convection field were analyzed by in-situ observation and numerical simulation.The numerical simulation model of the flow field downstream of the dam of Cuijiaying hydroproject is constructed to calculate the downstream flow field of the hydroproject under different operation conditions in the migratory season,and the distribution characteristics of water depth,velocity and other hydraulic elements are counted.Based on the observation of the downstream fish cluster distribution in the same period,the response relationship of fish cluster to the flow field is revealed through the comprehensive comparative analysis of fish cluster distribution and flow field characteristic distribution,and the response of fish cluster to the flow field is proposed.The preference curve of flow field characteristics provides support for the scientific formulation of ecological dispatching scheme of Cuijiaying hub and the construction of other similar ecological dispatching projects.
作者
张铭
谢红
杨宇
王晓刚
赵建平
ZHANG Ming;XIE Hong;YANG Yu;WANG Xiaogang;ZHAO Jianping(State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China;HanJiang River Yakou Shipping Hub Management Office,Xiangyang 441400,China)
出处
《水利水运工程学报》
CSCD
北大核心
2021年第5期40-47,共8页
Hydro-Science and Engineering
基金
中央公益性科研院所基本业务费资助项目(Y220011)
国家重点研发计划项目(2017YFC0405604)。
关键词
数值模拟
流场特性
鱼类感应流速
上溯通道
鱼类流场偏好性
numerical simulation
flow field characteristics
fish induced velocity
upstream channel
fish flow field preference
