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在水文学模型研究的基础上 ,根据对黄河下游河道输沙规律的认识 ,结合水动力学理论 ,进一步建立了流量演进、河道输沙能力、主槽糙率调整、分组沙冲淤和复式断面形态调整等复杂问题的计算方法 ,开发研制了黄河下游河道水文水动力学泥沙数学模型。经大量的实测资料验证 ,模型可以适应不同的水沙条件和河道边界条件 ,具有较高的计算精度 ,可为小浪底水库调度运用等生产研究提供可靠的计算依据。
Based on the study of hydrological models and based on the knowledge of sediment transport laws of the lower Yellow River, combined with hydrodynamics theory, the paper further established the characteristics of flow evolution, river sediment transport capacity, main channel roughness adjustment, Morphology adjustment and other complicated problems, and developed the mathematical model of hydrological and sediment transport in the lower Yellow River. After a large number of measured data verify that the model can adapt to different water and sediment conditions and river boundary conditions, with high calculation accuracy, it can provide a reliable basis for the production research of Xiaolangdi Reservoir.