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Numerical Model of Total Sediment Transport in the Yangtze Estuary |
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| Authors: | DOU Xiping LI Tilai DOU Guoren Senior Engineer River Harbour Engineering Department Nanjing Hydraulic Research Institute Nanjing P. R. China Senior Engineer Nanjing Institute of Hydrology Water Resourses Nanjing P. R. China Academician Nanjing Hydraulic Research Institute Nanjing P. R. China |
| Affiliation: | DOU Xiping LI Tilai and DOU Guoren Senior Engineer,River and Harbour Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210024,P. R. China Senior Engineer,Nanjing Institute of Hydrology and Water Resourses,Nanjing 210024,P. R. China Academician,Nanjing Hydraulic Research Institute,Nanjing 210029,P. R. China |
| Abstract: | Based on the non-equilibrium suspended load transport equation, bed load transport equation and sediment transport capacity formulas derived by Don et al. , a 2-D numerical model of total sediment transport in the Yangtze Estuary is presented. In the model, the actions of tidal currents and wind waves and the effect of salinity on sediment transport are considered. An automatically generated boundary-fitted grid is used to fit the boundaries of the estuary and the boundaries of engineering projects. The verification of calculations shows that the sediment concentration, the deformation of riverbed and siltation in the channels caused by typhoons can be successfully simulated. |
| Keywords: | the Yangtze Estuary tidal currents suspended load bed load numerical model |
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