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为模拟分析香水河挡潮闸不同方案下的水力特性,在正交贴体曲线坐标下建立平面二维水动力数学模型,并用原方案的物理模型试验资料验证了所建模型的准确性,分析挡潮闸上下游流速分布的均匀性及关于闸轴线的对称性,由于数值模拟结果显示直接整治天然河道地形的原方案整治效果较差,进而提出优化方案,并将原方案与优化方案数值模拟结果进行对比分析。结果表明,优化方案对闸上下游流速分布改善较为明显,有利于挡潮闸的调度运行。
In order to simulate and analyze the hydraulic characteristics under different schemes of Xiangshuihe tide gate, a two-dimensional planar two-dimensional hydrodynamic mathematical model is established under the orthogonal patch curve coordinates. The accuracy of the model is verified by the physical model test data of the original scheme. Due to the uniformity of flow velocity distribution at the upstream and downstream tidal flats and the symmetry of the gate axis, the numerical simulation results show that the original plan of direct river regulation is poor, and the optimization scheme is proposed. The numerical simulation of the original scheme and optimization scheme The results of comparative analysis. The results show that the optimization scheme can improve the distribution of flow velocities upstream and downstream of the sluices, which is in favor of the operation of the floodgate.