大型泵站虹吸式出水流道水力特性分析  

Study on the Hydraulic Characteristics of the Siphon Outlet Conduit of LargeSized Pumping Station

作　　者：朱红耕[1] 袁寿其[1] 施卫东[1] 刘厚林[1] 袁建平[1] 

机构地区：[1]江苏大学流体中心

出　　处：《中国农村水利水电》2005年第7期71-73,76,共4页China Rural Water and Hydropower

基　　金：十五攻关项目(ZZ02-03-01-04/05-01);水利部科技创新项目(SCX2003-12);江苏高校省级重点实验室开放课题(KJS03087);江苏省教育厅指导性计划(LK0410185)

摘　　要：分析了影响虹吸式出水流道水力特性的主要设计参数,在数值模拟流道内部三维流动和定性分析流道内部流态的基础上,建立了虹吸式出水流道水力特性评价指标体系。通过分析2个设计方案虹吸式出水流道的流场,定量比较驼峰和出口断面的流速分布均匀度和流道水力损失,客观评价虹吸式出水流道的水力特性,为实现水力设计优化提供了可靠依据,可有效地节省物理模型试验费用和时间,提高水泵装置效率。The major design parameters influencing the hydraulic characteristics of the siphon outlet conduit are studied, and the evaluation criteria system for the hydraulic characteristics of the siphon outlet conduit are established on the basis of numerical simulation of the inner 3D flow and qualitative analysis of the internal flow status of the conduit. Through analyses of the fluid fields of the siphon outlet conduit of two design schemes, the distribution uniformity of the velocity at the hump and the outlet sections and the hydraulic loss in the conduit are compared quantitatively to evaluate the hydraulic characteristics of the siphon outlet conduit impersonally. Thus, a lot of reliable information is provided for the hydraulic design optimization of siphon outlet conduit, a great deal of physical model experiment cost and time can be saved, and the efficiency of pump can be raised as well.

关 键 词：虹吸式出水流道 水力特性 数值模拟 大型泵站 

分 类 号：TV675[水利工程—水利水电工程]