摘要
为了对异侧竖缝式鱼道的水力特性进行系统研究,设计了带隔板的玻璃水槽,对该型式鱼道进行了试验模拟。测量了鱼道池室内的流速分布,分析讨论了不同竖缝宽度和池室长度下的无量纲流速分布特征和断面最大流速沿程衰减情况;提出主流轨迹的拟合公式,并比较分析了试验异侧竖缝式鱼道的水流特性。结果表明,该型式室内鱼道水流为二维流态。确定了主流流速与竖逢平均流速的比值范围。该试验结果可供相关设计及科研参考使用。
In order to study the hydraulic characteristics of the fish way with vertical cross-set slots on 2 sides,the glass flume with separating-panel was designed to simulate the fish way by experiments.The velocity distributions of the cell compartments were measured.In the cases of different widths of vertical slots and lengths of the flume,the dimensionless velocity distribution characteristics and the maximum cross-section velocity attenuation were analyzed and discussed.The fitted formula of mainstream track was put forward.In addition,the flow characteristics suitable for fish moving to upstream were analyzed.It is shown that the flow of the experimental fish way was two dimensional.The range of the ratio of mainstream velocity to the average velocity of the vertical slots was determined.
出处
《人民长江》
北大核心
2011年第15期66-68,共3页
Yangtze River
基金
2008年长江科学院基本科研业务费资助项目(YWF800812)
关键词
鱼道
异侧竖缝式
水力特性
流速分布
fish way
vertical slots of different sides
hydraulic characteristics
velocity distribution
