泄水建筑物挑流泄洪安全控制技术研究  

Research on Safety Control Technology for Spillway Flood Discharge

作　　者：李浩田 别玉静 顾太欧 LI Hao-tian;BIE Yu-jing;GU Tai-ou(Power China Guiyang Engineering Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《云南水力发电》2021年第1期40-44,共5页Yunnan Water Power

摘　　要：为寻求某水电站溢洪道的最优泄洪方式,选择合适的消力池尺寸。采用水气两相流方法,对某工程的大型泄水建筑物进行数值模拟。通过迭代计算k-ε两方程模型,利用追踪自由液面的VOF方法对水面线进行模拟,计算得到泄槽水面线、挑流水舌、消力池底板压力、挑距、流速等水力参数。通过分析消力池内水流流态选择合适的消力池尺寸,数值模拟结果与规范计算结果互相验证,吻合较好,验证了数值模拟成果应用在实际工程的可行性。In order to find the optimal flood discharge method for a spillway of a hydropower station,the appropriate size of the stilling basin is selected.The water-gas two-phase flow method is used to carry out numerical simulation on a large-scale discharge structure of a project.Through iterative calculation of k-εtwoequation model,the water surface line was simulated by using the VOF method to track the free liquid surface,and the hydraulic parameters such as the water surface line of gutter,the tongue of draft,the pressure of the bottom plate of stilling basin,jet trajectory distance,and velocity were calculated.By analyzing the water flow in stilling basin,the appropriate size of the basin is selected,and the numerical simulation results are in good agreement with the standard calculation results,which verifies the feasibility of the application of numerical simulation results in practical engineering.

关 键 词：泄水建筑物 挑距 数值模拟 消力池 

分 类 号：TV653.3[水利工程—水利水电工程]