CFD在调压室涌浪水位模拟中的应用  

The Application of 3-D Numerical Simulation to Calculating the Waves in Surge Tanks

作　　者：刘飞[1] 杨建东[1] 李进平[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《中国农村水利水电》2011年第9期123-126,129,共5页China Rural Water and Hydropower

摘　　要：对某水电站的尾水隧洞及下游调压室过渡过程中的非恒定流流态进行三维数值模拟,着重观测调压室内涌浪波动及调压室内底板压差变化过程。采用3种湍流模型对下游调压室及尾水隧洞进行了模拟,将调压室涌浪波动过程与调压室底板压差变化过程的三维计算结果与物理模型实验、一维数值计算的相应结果予以对比分析,阐明了不同湍流模型对过渡过程模拟的影响。结合三维模拟能捕捉流场内部流态的优势,探讨了涌浪波动过程中调压室水面波动过程及水流流态。While a hydropower station is in its transition process, the unsteady flow in the tailrace surge tank has been simulated by using the method of CFD. In this paper, the surge wave and the bottom plate pressure difference are the focus of concern in the 3-D numerical simulation. Three turbulence models have been used to simulate the unsteady flow. We can illustrate the differences between the three turbulence models while they are used to simulate the transition process. Based on the advantage that the 3-D numerical simulation can capture the information of internal flow field, we are also able to explore the situation of free surface and flow regime in the surge tank through the entire wave process.

关 键 词：三维流场 湍流模型 非恒定流 调压室涌浪 调压室底板压差 

分 类 号：TV732.5[水利工程—水利水电工程]