厂顶溢流式厂房水流脉动数值模拟研究  

Research on flow fluctuating numerical simulation of top overflow powerhouse

作　　者：葛文浩[1] 王海军[1] 

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《水资源与水工程学报》2013年第1期112-114,共3页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金青年科学基金项目(50909072);国家创新研究群体科学基金(51021004);高等学校博士学科点专项科研基金项目(20090032120082)

摘　　要：近年出现了一种将泄洪流道与发电流道重叠布置的新型厂顶溢流式水电站厂房,其运行过程中水流脉动是否会影响结构安全是一个非常值得研究的问题。文中采用大涡模拟对这一新型厂顶溢流式厂房泄流过程中的水流脉动进行了数值模拟,结合相关试验成果,得出了该水电站厂房流道的水压脉动分布特性。结果表明:水流脉动的频率与结构的自振频率相差较远,不会引起结构共振,结构安全。In recent years,there has been a new top overflow hydropower plant which arranges discharge way and electricity generation flow way to overlap,and it is an important problem that whether flow fluctuation will affect the structural safety in the operation process.In this article,flow fluctuating of a new top overflow powerhouse was simulated by means of large eddy simulation.Combined with the relevant test results,we obtained the distribution characteristics of flow fluctuating of the hydropower house.The results show that flow fluctuation frequency is far different from the natural frequency and does not cause structural resonance,so the structure is safe.

关 键 词：厂顶溢流式厂房 水流脉动 大涡模拟 频率 共振 

分 类 号：TV312[水利工程—水工结构工程]