首页|Stability of the Stratification of Water Bodies in the North Passage of the Yangtze River Estuary Based on the EFDC Model
Stability of the Stratification of Water Bodies in the North Passage of the Yangtze River Estuary Based on the EFDC Model
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维普
To study the stratified stability of a water column in the North Passage of the Yangtze River Estuary,a numerical model of the hydrodynamics of this estuary is established using the EFDC model.On the basis of EFDC results,this paper derives and pro-vides the discriminative index of water body stability caused by salinity and analyzes the along-range variation in water body strati-fication stability in the North Passage of the Yangtze River Estuary and the periodic variation at a key location(bend area)based on the simulation results of the numerical model.This work shows that the water body in the bend area varies between mixed and strati-fied types,and the vertical average flow velocity has a good negative correlation with the differential velocity between the surface and bottom layers of the water body.The model simulation results validate the formulae for the stratified stability discriminant during spring tides.
Yangtze EstuaryNorth PassageEFDC modelstratification stabilitysalinity distribution
WU De'an、LI Xin、WANG Yigang
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College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China
Tianjin Research Institute For Water Transport Engineering,Tianjin 300456,China
National Natural science Foundation of ChinaNational Natural science Foundation of China
NETL
NSTL
万方数据
维普
