淹没齿坝三维水沙动力特性数值模拟研究  

3D Numerical Study of the Flow and Sediment Properties in a Toothed Spilling Spur Dike

作　　者：闫杰超 陈述[1] 徐华[2] 赵泽亚 Yan Jiechao;Chen Shu;Xu Hua;Zhao Zeya(China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan Hubei 430050,China;Nanjing Hydraulic Research Institute,Nanjing Jiangsu 210029,China)

机构地区：[1]中铁大桥勘测设计院集团有限公司,湖北武汉430050 [2]南京水利科学研究院,江苏南京210029

出　　处：《港工技术》2019年第5期1-5,共5页Port Engineering Technology

基　　金：国家重点研发计划—交通运输部建设科技项目(2016YFC0402307)

摘　　要：本文利用FLOW-3D,通过建立三维水沙数值模型研究淹没齿坝的水沙特性。数学模型水动力特性通过物理试验实测数据进行验证,验证结果良好。通过对比分析齿形丁坝与梯形丁坝的坝头流速、湍流能分布及河床冲淤变化,说明坝头斜坡的存在具有平顺水流作用与减小冲刷的作用。In the paper,the flow-3d numerical model is used to study the water-sediment characteristics of the toothed spilling spur dike.The hydrodynamic characteristic of numerical model is verified by physical test data,and the results are good,which indicate that the existence of the slope at the head of the spur dike has the effect of smoothing the flow and reducing scour.

关 键 词：12.5 m深水航道 数值模拟 丁坝 水流结构 冲刷 

分 类 号：TV135[水利工程—水力学及河流动力学]