Numerical Model of Total Sediment Transport in the Yangtze Estuary
Numerical Model of Total Sediment Transport in the Yangtze Estuary
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发表时间：
1999
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通讯作者：
Li Tilai
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作者：
Li Tilai
基于Don等导出的非平衡悬沙输运方程、床沙输运方程和输沙能力公式，建立了长江口总输沙的二维数值模型。模型中考虑了潮流和风浪的作用以及盐度对泥沙输运的影响。采用自动生成的边界拟合网格对河口边界和工程边界进行拟合。计算结果的验证表明，台风引起的泥沙浓度、河床变形和河道淤积可以很好地模拟出来。
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.