2D models based on the shallow water equations are widely used in river hydraulics. However, these models can present deficiencies in those cases in which their intrinsic hypotheses are not fulfilled. One of these cases is in the presence of weirs. In this work we present an experimental dataset including 194 experiments in nine different weirs. The experimental data are compared to the numerical results obtained with a 2D shallow water model in order to quantify the discrepancies that exist due to the non-fulfillment of the hydrostatic pressure hypotheses. The experimental dataset presented can be used for the validation of other modelling approaches.

中文翻译：

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二维浅水模型中的堰建模

基于浅水方程的二维模型广泛用于河流水力学。然而，这些模型在其内在假设未得到满足的情况下可能存在缺陷。其中一种情况是存在堰。在这项工作中，我们提供了一个实验数据集，其中包括 9 个不同堰中的 194 个实验。将实验数据与使用 2D 浅水模型获得的数值结果进行比较，以量化由于未满足静水压力假设而存在的差异。提供的实验数据集可用于验证其他建模方法。