楼庄子水库泄水建筑物初选方案数值模拟分析  

Numerical simulation analysis of the primary plan of building Louzhuangzi outlet structure

作　　者：龚云万 Gong Yun-wan

机构地区：[1]新疆水利厅头屯河流域管理处,新疆昌吉831100

出　　处：《吉林水利》2018年第4期35-38,41,共5页Jilin Water Resources

摘　　要：本文采用数值模拟的研究方法 ,以楼庄子水库泄水建筑物为研究对象,对溢洪洞底流消能与挑流效能两种初拟方案进行研究,运用标准k-ε计算模型结合流体体积分数法(VOF)追踪自由水面,对溢洪洞不同方案进行了三维水气两相流数值模拟。通过同等计算条件下,设计工况计算成果分析,对比了两种方案的流速矢量图及水气两相流云图,得出底流消能消能效果较好;并分析得出了底流消能方案池深、挑流效能挑角进一步优化方向,分析成果为楼庄子水库溢洪洞方案选取提供了理论依据,进一步比选过程中可直接运用本文成果。This article adopts the research method of numerical simulation,and takes Louzhuangzi reservoir outlet structure as the case study,to analyze two primary plans which are tunnel spillway energy dissipation by bottom flow and energy dissipation by trajectory jet.By using the standard k-epsilon calculation model,combining with the fluid volume fraction method（VOF）,the free surface can be tracked,and the simulation for3-D turbulent model of air-water two phases flow of the tunnel spillway is approched.Under the same calculation conditions,the flow velocity vector and the water vapor phase flow chart of the two schemes are compared,and the results show that tunnel spillway energy dissipation by bottom flow is better.Moreover,further optimization analysis is made as well,which provides a theoretical basis for Louzhuangzi reservoir tunnel spillway selection.

关 键 词：溢洪洞 数值模拟 底流消能 挑流消能 标准k-ε模型 

分 类 号：TV651.1[水利工程—水利水电工程]