船闸单侧闸墙主廊道输水系统岔管水动力特性研究  

Hydrodynamic characteristics of bifurcation pipe in main corridor water conveyance system of unilateral lock wall

作　　者：张志崇[1,2] 杨海滔 胡亚安[3] 薛淑[3] 严秀俊[3] ZHANG Zhichong;YANG Haitao;HU Ya an;XUE Shu;YAN Xiujun(China Water Northeastern Investigation,Design&Research Co.,Ltd.,Changchun 130021,China;Research Center on Cold Region Engineering Technology,Ministry of Water Resources,Changchun 130061,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China)

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]水利部寒区工程技术研究中心,吉林长春130061 [3]南京水利科学研究院,江苏南京210029

出　　处：《水运工程》2024年第5期103-109,150,共8页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2018YFC0407303)。

摘　　要：船闸单侧闸墙主廊道输水系统具有结构简单、开挖量小、工程投资省等优点,在河谷狭窄、边坡陡峭等地形受限地区具有明显的技术优势,但工程应用难点之一在于如何保证廊道内断面流速的均匀性,避免出现严重的偏流、脱流现象。依托嘉陵江草街二线船闸工程,采用通用CFD软件FLUENT,对船闸单侧闸墙主廊道双阀门输水系统布置中的岔管水动力特性进行较为详细的研究,探讨岔管分岔角、墩头曲线形式以及外壁曲线形式对岔管水力特性的影响,提出外壁采用正弦曲线,内壁采用圆弧-直线-圆弧形曲线的单侧输水廊道阀门段岔管布置体形,可为类似工程设计提供参考。The main corridor water conveyance system of unilateral lock wall has the advantages such as simple structure,small amount of excavation and less investment in the project.It has obvious technical advantages in the narrow valley,steep slope and other topographic restricted areas.However,one of the difficulties in its engineering application is how to ensure the uniformity of the flow velocity in the corridor and avoid serious drift and deflow phenomena.Based on Caojie second-line ship lock project of Jialing River,this paper uses the general CFD software FLUENT to study the hydrodynamic characteristics of the bifurcation pipe in the layout of double valve water delivery system in the main corridor of the single-side lock wall in a more detailed way,and discusses the influence of the bifurcation angle of the bifurcation pipe,pier curve type and outer wall curve type on the hydraulic characteristics of the bifurcation pipe.The layout type of bifurcated pipe in the valve section of unilateral water transmission gallery with sinusoidal curve on the outer wall and arc-straight-arc curve on the inner wall is proposed,which can provide reference for similar engineering design.

关 键 词：单侧闸墙输水廊道 岔管体型 流速不均匀系数 数值模拟 草街二线船闸 

分 类 号：U641.1[交通运输工程—船舶及航道工程]