张峰水库溢洪道水力特性三维数值模拟  

Three-dimensional Numerical Simulation on the Hydraulic Properties of the Spillway of Zhangfeng Reservior

作　　者：李建波[1] 李礼[1] 

机构地区：[1]山西省水利水电勘测设计研究院,太原030024

出　　处：《太原理工大学学报》2015年第6期775-779,共5页Journal of Taiyuan University of Technology

摘　　要：以张峰水库为例建立了溢洪道三维结构模型,采用结构网格及混合网格技术对模型进行了离散,并利用标准k-ε湍流模型、SIMPLE算法及VOF法对溢洪道流场进行了三维数值模拟。结果表明,溢洪道过流能力、水面线及流速分布与实测值吻合良好;溢洪道底板压强分布合理,水流空化数满足设计要求,溢洪道体型设计合理可靠。以物理试验验证数值模拟,使得计算结果真实、可信,进而详细地分析了溢洪道的压强特性及水流空化数,对同类工程的优化设计有一定的参考作用。In this paper,three dimension frame model of the spillway is established to the case of Zhangfeng Reservior.The model is discretized with structure grids and hybrid grids.And the flow field of the spillway is simulated by 3-D numerical model,in which a k-εturbulent model,SIMPLE Algorithm and volume of fluid(VOF)method are used.The results show a good agreement with the measured value about discharge capacity,water surface and the velocity distribution of the spillway.There is a reasonable distribution of the pressure on the bottom,and the flow cavitation number satisfies the design requirements.The results of numerical simulation were proved to be true and credible by the measured values.Then,a detailed analysis was given on the pressure characteristics and the flow cavitation number of the spillway,which is very useful for the optimization design of similar projects.

关 键 词：溢洪道 水力特性 数值模拟 VOF模型 水流空化数 

分 类 号：TV651.1[水利工程—水利水电工程] TV135.2