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应用一种平面迎风有限元与垂向隐式有限差分相结合的数值计算方法建立了三维潮流和潮流输沙数学模型，并分别与相应的理论公式进行了对比验证．将建立的模型对广西廉州湾水域进行了计算，与实测资料的对比分析表明模型的计算结果符合实际．
A mathematical model of tidal current and tidal current sediment transport was established by using a numerical method combining a finite element finite element and a vertical finite implicit finite difference method. The results were contrasted with the corresponding theoretical formulas. The model was built on the waters of Lianzhou Bay in Guangxi. Comparisons with measured data show that the calculated results are in line with the actual conditions.