基于正交试验的旋流竖井泄洪洞衔接段体型参数敏感性分析  

Sensitivity Analysis of Parameters in Connecting Section of Swirling Shaft Spillway Using Orthogonal Test

作　　者：田崧杰 张晓春[1] 王均星[1] 董宗师 TIAN Song-jie;ZHANG Xiao-chun;WANG Jun-xing;DONG Zong-shi(School of Water Resources and Hydropower,Wuhan University,Wuhan 430010,Hubei Province,China;Changjiang Institute of Survey,Planning Design and Research Corporation,Wuhan 430014,Hubei Province,China)

机构地区：[1]武汉大学水利水电学院,湖北武汉430010 [2]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《中国农村水利水电》2024年第10期212-217,226,共7页China Rural Water and Hydropower

基　　金：湖北省自然科学基金青年项目(2023AFB370)。

摘　　要：竖井式泄洪洞的衔接段体型直接影响退水隧洞的流态、竖井的振动特性和消能效果。对衔接段体型的研究目前以单因素居多,多因素研究较少,在工程设计实践中对竖井体型进行优化多参考类似工程经验,尚无较为系统的优化方法。通过数值正交试验,以出口湍动能为指标,对衔接段长宽比、出口压坡收缩比、压坡坡比等衔接段体型参数进行了敏感性分析。研究表明:衔接段长宽比对出口湍动能的影响最为显著,压坡坡比次之,收缩比最低。研究成果可在工程设计中对竖井泄洪洞衔接段体型优化提供一定的参考。The shape of the connecting section of the shaft spillway directly affects the flow pattern of the tunnel,the vibration characteristics of the shaft and the energy dissipation effect.At present,the research on the shape of connecting section is mostly single factor,and few multi-factor studies.In engineering design practice,the optimization of shaft shape mostly refers to similar engineering experience,and there is no more systematic optimization method.In this paper,the numerical orthogonal test is used to analyze the sensitivity of the lengthwidth ratio,the contraction ratio of the exit pressure slope and the compression slope ratio of the connecting section.The results show that the length-width ratio has the most significant effect on the outlet turbulent kinetic energy,followed by the compression slope ratio and the lowest contraction ratio.The research results can provide some reference for the optimization of the joint shape of the shaft spillway tunnel in engineering design.

关 键 词：竖井式泄洪洞 衔接段 体型优化 正交试验法 湍动能 

分 类 号：TV135.2[水利工程—水力学及河流动力学]