将已被广泛应用的一维泥沙异重流控制方程推广到平面二维情形 ,构成一组四方程模型 ,并对方程中重要参数的取值作了讨论。而后针对黄河口泥沙异重流的发生和演变受潮相控制的特殊性对其进行数值模拟。在泥沙异重流的基本控制方程中加入了潮汐影响项 ,采用 ADI法对黄河口的潮流控制方程与有潮汐影响的泥沙异重流控制方程进行半耦合求解。模拟结果与实测结果基本吻合 The widely used one-dimensional sediment gravity flow control equations are generalized to the planar two-dimensional case to form a set of four-equation models, and the values ​​of the important parameters in the equations are discussed. Then according to the peculiarities of the tidal phase control, the occurrence and evolution of the heavy sediment in the Yellow River Estuary are numerically simulated. In the basic control equation of heavy sediment flow, the influence item of tide is added. The ADI method is used to solve the flow control equation of the Yellow River Estuary and the sediment isoparametric flow control equation with tide influence. The simulation results basically agree with the measured results