竖缝式鱼道180°转弯段水力特性研究  

Study on the hydraulic characteristics of flow in 180°turning pools for vertical-slot fishways

作　　者：李明泉 蔡德所[1,2] 杨培思 莫崇勋[1] 孙桂凯[1] 李烈 LI Ming-quan;CAI De-suo;YANG Pei-si;MO Chong-xun;SUN Gui-kai;LI Lie(School of Civil and Architectural Engineering,GuangxiUniversity,Nanning 530004,China;College of Hydraulic and Environmental Engineering,China Three Gorges University,Yichang 443000,China;Guangxi Vocational College of Water Resources and Electric Power,Nanning 530004,China)

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]三峡大学水利与环境学院,湖北宜昌443000 [3]广西水利电力职业技术学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2021年第6期1488-1495,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51569003);广西自然科学基金资助项目(2017GXNSFAA198361)。

摘　　要：180°转弯段是鱼道的重要结构形式之一,为了研究竖缝式鱼道180°转弯段的水力特性,针对老口竖缝式鱼道180°转弯段,采用数值模拟的方法,对其水流流态和紊动能进行模拟计算,对转弯段的主流区流速、紊动能沿程及垂向分布变化进行了分析,得出竖缝式鱼道180°转弯段的主流区水流流态和紊动能的分布情况。模拟结果表明:180°转弯段的主流区明确,流速适宜,紊动能较小,老口鱼道对鱼类洄游具有良好的水力条件。180°turning pools is one of the important structure form of fishway,and this research is to study the hydraulic characteristics of Flow in 180°turning pools for vertical-slot fishways.In view of the Flow in 180°turning pools for vertical-slot fishways in Laokou,using the method of numerical simulation,the simulation and calculate the flow regime and turbulent kinetic energy,the flow velocity,turbulent energy along the vertical direction and the vertical distribution of the main section of the turning section were analyzed.In addition,we collected the data on Flow in 180°turning pools for vertical-slot fishways of mainstream zoneof the flow regime as well as the distribution of turbulent kinetic energy.The simulation results show that the 180°turning poolsare characterized by clear mainstream area,moderate velocity,smallturbulence kinetic energy,indicating that the Laokoufishway has good hydraulic conditions for fish migration.

关 键 词：竖缝式鱼道 180°转弯段 水力特性 

分 类 号：S956.3[农业科学—水产养殖] TV131.4[农业科学—水产科学]