【摘要】 以二维非恒定流和不平衡输沙理论为基础，建立了黄河下游高村至孙口河二维水沙运动数值模型，对１９９６年异常洪水的滩槽水流运动、泥沙冲淤进行了分析计算．计算结果充分反映了模型对黄河来水来沙变幅大的适应能力，以及对滩槽水沙交换、滩区生产堤对洪水演进影响的合理模拟．更多还原

【Abstract】 In the paper, a two-dimensional mathematical model which is based ontheories of unsteady flow and non-equilibrium sediment transport is developed tosimulate this kind of complicated process of flood propagation and sediment transportalong Gaocun-Sunkouhe section of the lower Yellow River. The calculatedhydrodynamic and sediment transport characteristics are well correlated the observeddata of 1996 flood, which demonstrates that the model can reasonable simulate thecomplex flood propagation process and morphologic evolution, and reflect variousinfluences of channels, banks and dikes.更多还原