溢洪道泄槽及消力池流态优化数值模拟研究  

Numerical Simulation Study on Optimization of Flow Patterns in the Discharge Chute and Stilling Basin of a Spillway

作　　者：龙跃洲 潘世一 黄忠 郑航 LONG Yuezhou;PAN Shiyi;HUANG Zhong;ZHENG Hang(Department of Hydraulics,Changjiang River Scientific Research Institute,Wuhan 430010,China;CHN Energy Changyuan Shiyan Hydropower Development Co.,Ltd.,Shiyan 442326,China;Department of Space Information Technology and Application,Changjiang River Scientific Research Institute,Wuhan 430010,China)

机构地区：[1]长江科学院水力学研究所,湖北武汉430010 [2]国能长源十堰水电开发有限公司,湖北十堰442326 [3]长江科学院空间信息技术应用研究所,湖北武汉430010

出　　处：《水电与新能源》2023年第6期26-29,56,共5页Hydropower and New Energy

基　　金：国家自然科学基金项目(51879013)。

摘　　要：我国西南地区某大型水库工程运行期间常遇小流量工况下的溢洪道破坏现象,通过建立溢洪道三维数值模型,从CFD(Computational Fluid Dynamics)仿真的工程应用角度,探索了适宜计算跌坎式底流消力池的湍流和水跃计算方案,对不同工况的对比分析得出典型水力特征数据,从而解释溢洪道破坏原因及变化趋势,并提出了一种优化方案且进行了验证,为进一步深入研究溢洪道泄槽及消力池水力安全打下基础。During the operation of a large-scale reservoir project in southwest China,damages of the spillway are often observed under small discharge flow condition.Thus,a three-dimensional numerical model of the spillway is established.By applying the computational fluid dynamics(CFD)simulation technique,the calculation scheme suitable for the turbulence and hydraulic jump in the falling-sill type bottom-flow stilling basin is determined.Typical hydraulic characteristic data are obtained with comparative analysis of different working conditions.The causes of the spillway damage and the variation trend are determined.An optimization scheme is then proposed and verified.The results provide useful reference for the further in-depth study on hydraulic safety of the spillway discharge chute and stilling basin.

关 键 词：溢洪道 数值模拟 流态 优化方案 水跃 

分 类 号：TV651.1[水利工程—水利水电工程]