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分析了建立黄河河口泥沙有限元模型的必要性,并结合黄河河口实际情况,建立了黄河河口二维潮流和泥沙数学模型。从数学模型模拟计算得到的潮位、流速和冲淤验证结果可以看出,由模型模拟的潮汐和潮流的等海洋动力特性以及泥沙冲淤和海底变形都与实测资料一致,表明建立的河口泥沙二维有限元数学模型可进行黄河河口的潮汐、潮流和泥沙运动及海底冲淤演变的模拟与预测。
The necessity of establishing the sediment model for the Yellow River estuary was analyzed. Combined with the actual situation of the Yellow River estuary, two-dimensional tidal current and sediment mathematical model of the Yellow River estuary was established. From the tide level, velocity of flow and scouring and silting verification results from the mathematical model simulation, it can be seen that the isokinetic characteristics of the tidal and tidal currents simulated by the model as well as sediment scouring and seafloor deformation are consistent with the measured data, indicating that the established estuarine mud The two-dimensional finite element model of sand can simulate and predict the tidal, tidal current, sediment movement and the seabed erosional evolution of the Yellow River estuary.