高水头平面闸门动水关闭的水动力特性数值模拟研究  

Numerical simulation of hydrodynamics on high-head plane gate

作　　者：章晋雄[1] 吴一红[1] 张东[1] 曹以南[2] 张文远[1] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [2]中国水电顾问集团昆明勘测设计研究院,昆明650051

出　　处：《水力发电学报》2013年第5期184-190,共7页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金项目(51279216);中国水利水电科学研究院科研专项(水集0911)

摘　　要：本文采用RNG k-ε模型和VOF方法对平面闸门动水关闭的非恒定两相湍流进行数值模拟,分析了闸门区水气两相流的流场特征、门体动水压力荷载的时空特性,并与物理模型试验进行对比,计算结果和试验值吻合较好。针对闸门底缘水力荷载复杂变化的问题,计算分析不同闸门底缘体型、上游水头及启闭速度运行参数下闸门的水动力特性,为高水头平面闸门的应用提供参考。In this paper, a RNG k - ε turbulence model and VOF method are applied to simulate the unsteady two-phase flow in the closing process of a plane gate. The spatial and temporal characteristics of flow pattern, water pressure and hydrodynamic loads on the gate are analyzed. The calculated results are in good agreement with experimental data. To examine the complex hydraulic load on the gate bottom, the simulation was conducted for different sizes of gate bottom edge, different upstream heads and different closing speeds of the gate. The effects of these parameters on hydrodynamic characteristics of the gate are analyzed to provide a reference for hydraulic design of high-head gate.

关 键 词：水力学 水动力特性 数值模拟 平面闸门 

分 类 号：TV131.61[水利工程—水力学及河流动力学]