某大坝溢流坝段水流演进三维数值模拟分析  

Three-dimensional numerical simulation analysis of flow evolution in a dam overflow section

作　　者：宋明瑞 潘学渊 SONG Ming-rui;PAN Xue-yuan

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021 [2]大连河海水利水电勘测设计有限公司,辽宁大连116021

出　　处：《东北水利水电》2024年第10期38-41,72,共5页Water Resources & Hydropower of Northeast China

摘　　要：本文采用VOF法和k-ε双方程紊流模型耦合的三维数值模拟方法,对某大坝溢流坝段的水流演进进行模拟计算。文中针对泄放设计洪水和校核洪水两种工况下溢流面水流的水深、流速及压强等流态信息进行水力分析计算,该方法相比于传统经验公式可以更加准确地描述溢流面水流状态,相比于水工模型试验方法更加快捷、经济。此研究为大坝溢流坝段的后续大修加固处理提供良好的设计依据,同时可为其他类似工程提供借鉴。In this paper,a three-dimensional numerical simulation method coupled with the VOF method and k-εturbulence model is used to simulate the flow evolution of a dam overflow dam.In this paper,the water depth,velocity,pressure and other flow information of the overflow surface flow under the two conditions of the design flood and the check flood are analyzed and calculated.Compared with the traditional empirical formula,the method can describe the overflow surface flow state more accurately,and is faster and more economical than the hydraulic model test method.This study provides a good design basis for the subsequent overhaul and reinforcement treatment of the overflow dam section,and can provide reference for other similar projects.

关 键 词：计算流体力学 三维流态数值模拟 VOF法 k-ε模型 

分 类 号：TV214[水利工程—水文学及水资源]