西直湖港南枢纽水流特性数值模拟与优化  

Numerical simulation and optimization of water flow characteristicsof Gangnan junction of Xizhi Lake

作　　者：孙登峰 张静 于建忠 李昱 宋丽花 SUN Dengfeng;ZHANG Jing;YU Jianzhong;LI Yu;SONG Lihua(Jiangsu Taihu Planning and Design Institute of Water Resources Co.,Ltd.,Suzhou 215103,China)

机构地区：[1]江苏省太湖水利规划设计研究院有限公司,江苏苏州215103

出　　处：《江苏水利》2020年第S02期64-68,共5页Jiangsu Water Resources

摘　　要：通过数值模拟方法,研究了新沟河延伸拓浚工程西直湖港南枢纽船闸引航道与立交地涵引河交汇口在不同工况下的水流流场结构,对斜向入流边界条件进行了优化。数值模拟结果表明,调整船闸和地涵引河之间连接墩头的型式与尺寸、增大入流断面角度,有利于改善引航道内水流结构,保证船舶通航安全,同时避免了另行设置工程措施、节省工程投资。By means of numerical simulation,the structure of the flow field in different working conditions between the shiplock approach channel and the inverted siphon culvert of Gangnan junction of Xizhi Lake in the Xingou River extension dredging project was studied,and the boundary conditions of the oblique inflow were optimized.Numerical simulation results showed that adjusting the type and size of the connecting pier head between the ship lock and the ground culvert approach river and increasing the angle of the inflow cross-section were conducive to improving the water flow structure in the approach channel,ensuring the safety of navigation,and avoiding additional engineering measures and saving engineering investment.

关 键 词：水流流态 数值模拟 船闸引航道 布置优化 

分 类 号：TV691[水利工程—水利水电工程]