珠江河口潮流的数值计算研究  

Numerical Study on Tidal Current in the Pearl River Estuary

作　　者：王光宇 宏波 WANG Guangyu;HONG Bo(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]华南理工大学土木与交通学院

出　　处：《人民珠江》2019年第9期5-14,38,共11页Pearl River

基　　金：国家自然科学基金(41406005);国家自然科学基金(51761135021);中国科学院前沿科学重点研究项目(LQYZDJ-SSW-DQC022);河口海岸学国家重点实验室(华东师范大学)开放课题(SKLEC-KF201604)

摘　　要：潮流是潮汐河口地区最基本的物质运动,建立河口地区水动力模型对研究当地的水动力环境和预估海上工程对潮流场的影响有重要意义。利用EFDC模型研究珠江河口的潮流特征并模拟计算试验人工岛对周边潮流的影响。模型计算结果与实测数据吻合较好。研究发现珠江河口潮流性质以不规则半日潮为主,潮流类型以往复流为主,冬夏两季潮流椭圆的旋向相反。人工岛区域最大流速减小,附近水域产生环流现象,并影响潮流流动。The tidal current is the most basic material movement in the tidal estuary area.The establishment of the hydrodynamic mode for the estuary area is of great significance for studying the local hydrodynamic environment and proposed off shore engineering on the tidal current field.By studying the characteristics of tidal current in the Pearl River estuary and simulating & measuring the impact of artificial islands on surrounding tidal currents based on EFDC model,the calculation results of the model agree well with the measured data.The study found that the tidal current in the Pearl River estuary is dominated by irregular semi-diurnal tides,the type of tidal current is mainly reversing current,and the rotation of the tidal current in winter and summer is opposite.The maximum flow velocity in the artificial island area is reduced,and the circulation occurs in the nearby waters,which affect the tidal flow.

关 键 词：EFDC模型 潮流 人工岛 珠江河口 

分 类 号：TV148[水利工程—水力学及河流动力学]