Numerical simulation of hydrodynamic environment effects of the reclamation project of Nanhui tidal flat in Yangtze Estuary
作者机构：Institute of Environmental and Ecological Engineering Guangdong University of Technology Guangzhou 510006 China Ocean & Hydraulic Engineering Institute Power China Huadong Engineering Corporation Limited Hangzhou 311122 China State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China Research Center far Eco-Environmental Engineering Dongguan University of Technology Dongguan 523808 China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2019年第31卷第3期
页 面：603-613页
核心收录：
学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）]
基 金：the National Natural Science Foundation of China (Grant Nos. 51779039 51879028)
主 题：Yangtze Estuary 3-D numerical model hydrodynamics nutrients reclamation project
摘 要：The reclamation is the main method in the coast exploitation, and the assessment of the hydrodynamic environment effect of the reclamation project is important for project s site selection and environmental protection. With consideration of the baroclinic water, a 3?D numerical model MIKE3 is applied to simulate Yangtze Estuary s hydrodynamic environment to predict the impacts of the reclamation project of the Nanhui tidal flat. The simulated results of the model agree well with the field data of the tide level, the current speed, the current direction, the temperature, the salinity and the water quality, and it is indicated that after the reclamation project, the high tide level will be lower, while the low tide level will be higher in the South Branch in general. During the spring tide in the dry season, the peak velocity during the ebb tide in the North Channel will be reduced by 13%, while it will be increased by 21% in the South Channel in average. The salinity will be increased in the North Channel, while reduced in the South Passage, besides, the reclamation project will aggravate the saltwater intrusion of the North Branch. The value of N/P will be increased by about 4% in the whole South Branch except for the North Channel, leading to a slight aggravation of the phosphorus restriction effect in the Yangtze Estuary.
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