水电站泄洪底孔水力学特性数值模拟  

Numerical Simulation of Hydraulic Characteristics of Spillway Bottom Hole of Hydropower Station

作　　者：李琨[1] Li Kun(Xinjiang Uygur Autonomous Region Water Resources Survey and Design Institute,Urumqi 830000,Xinjiang)

机构地区：[1]水利部新疆维吾尔自治区水利水电勘测设计研究院,新疆乌鲁木齐830000

出　　处：《陕西水利》2023年第1期9-12,共4页Shaanxi Water Resources

摘　　要：为进行新疆巴音郭楞蒙古自治州和静县境内某二级水电站泄洪底孔水力学特性分析,采用标准k-ε紊流模型以及FLUENT应力分析软件分别进行该水电站工程设计洪水位和校核洪水位两种工况下,泄洪底孔沿程水面高程、压力及流速分布等水力参数特性分析,所得到的全程三维数值模拟结果和常规物理模型试验结果拟合程度良好。结果表明,数值模拟分析技术可作为水电站泄洪底孔水力学特征物理模型试验方法的有效补充,以发挥两种分析技术的优势,提升分析结果的科学性。In order to analyze the hydraulic characteristics of the spillway bottom hole of a secondary hydropower station in Xinjiang Hejing County, the standard-turbulence model and FLUENT stress analysis software were used to calculate the design and check flood levels of the hydropower station. The hydraulic parameters such as water surface elevation, pressure and velocity distribution along the spillway bottom hole were analyzed. The obtained full 3D numerical simulation results fit well with the conventional physical model test results. The results show that the numerical simulation analysis technology can be used as an effective supplement to the physical model test method of hydraulic characteristics of the spillway bottom hole of hydropower station, so as to give full play to the advantages of the two analytical techniques and improve the scientificity of the analysis results.

关 键 词：泄洪底孔 水力学特性 物理模型试验 数值模拟 

分 类 号：TV135.2[水利工程—水力学及河流动力学]