溧阳抽水蓄能电站引水钢岔管水力特性研究  

Study on hydraulic characteristics of steel diversion bifurcated pipe for Liyang Pumped Storage Hydropower Station

作　　者：冯艳[1] 胡旺兴[1] 

机构地区：[1]中国水电顾问集团中南勘测设计研究院,湖南长沙410014

出　　处：《水利水电技术》2014年第2期119-122,125,共5页Water Resources and Hydropower Engineering

摘　　要：溧阳抽水蓄能电站引水岔管PD值大,所处地质条件较差,岔管体形的选择直接影响管壁的厚度、施工难度和水流流态等问题。结合输水系统整体布置情况,可采用非对称Y形和对称Y形两种体形。本文采取FLUENT进行数值模拟,对两种岔管体型的水头损失、水流流态等水力特性进行对比分析,为岔管的体型选择提供可靠依据,并为类似工程提供经验。As the PD value of the diversion bifurcated pipe of Liyang Pumped Storage Hydropower Station is larger and the loca- tion of it is also under a poorer geological condition, the selection of the shape of the bifurcated pipe has a direct impact on the wall-thickness of the pipe, construction difficulty and flow pattern. Based on the overall layout of the water conveyance system, both the shapes of asymmetric Y and symmetric Y can be adopted for it. A numerical simulation is made herein based on FLU- ENT for analyzing and comparing the hydraulic characteristics of head loss and flow pattern for both the shapes of the bifurcated pipe ; which not only provides a reliable basis for the selection of the pipe shape, but also gives some experiences to the similar projects concerned.

关 键 词：岔管 数值模拟 水力特性 水头损失 溧阳抽水蓄能电站 

分 类 号：TV732.4[水利工程—水利水电工程]