Hydrodynamic model is important tools of river flood routing and flood control, promote the beneficial and abolish the harmful, technically water control and scientific water manage.

水力学模型是平原区洪水演进、流域防洪调度、兴利除害、技术治水、科学管水合理利用的重要工具。

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Calculation results show that this model can simulate the characteristics of water flow in a floodplain river and can improve the capacity of flood routing simulating and predicting.

计算结果均表明，本文的一维水动力学模型能较好地模拟漫滩河道的过流特征，并改善了漫滩河道洪水演进的模拟与预测能力。

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When applied to flood routing for the river reach in large water years the curve obviously improves the simulated flood processes especially the result of the highest water stage.

应用到大洪水年份河段洪水演进中，显著地提高了洪水过程特别是最高洪水位的拟合精度。

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