南水北调中线一期工程王庆坨T型连接井交汇水力动态特性的数值研究  

Numerical study on hydrodynamic characteristic of confluence in Wangqingtuo T-junction Chamber of Phase Ⅰ of Mid-Route of South-to-North Water Transfer Project

作　　者：于佐东[1] 党承华[1] 

机构地区：[1]河北工程大学,河北邯郸056021

出　　处：《水利水电技术》2013年第6期50-53,共4页Water Resources and Hydropower Engineering

摘　　要：对带"品"字型导流均流墙的T型连接井交汇水流进行数值模拟计算,分析了连接井内的流态、流速分布等,结论证明,"品"字型导流均流墙能使来水在连接井内改变方向,从而均匀地进入下游三孔箱涵,圆弧设计对于水力流动影响较小,基本不增加水头损失。A numerical simulation is made on the confluence at the guide-walls in a triangle-layout in the junction chamber, and then the flow pattern, flow velocity, etc. in the chamber are analyzed. The conclusion shows that the guide-walls in a trianglelayout can make the inflowing water changing its direction in the chamber and thus evenly flow into the downstream tri-box culvert ; for which the design of circular arc has less impact on the hydraulic flow with non-loss of the water head basically.

关 键 词：连接井 动态特性 数值研究 南水北调中线一期工程 

分 类 号：TV512[水利工程—水利水电工程]