Environmental and Water Engineering Group, University of A Coruña, ETS Ingenieros de Caminos Canales y Puertos, Campus de Elviña s/n, 15071 A Coruña, Spain.
Water Sci Technol. 2010;62(9):1998-2008. doi: 10.2166/wst.2010.746.
This paper presents the experimental validation and the application to a real industrial catchment of a two-dimensional depth-averaged shallow water model used for the computation of rainfall-runoff transformation from direct precipitation data. Instead of using the common approach in flood inundation modelling, which consists in computing the water depth and velocity fields given the water discharge, in this study the rainfall intensity is imposed directly in the model, the surface runoff being generated automatically. The model considers infiltration losses simultaneously with flow simulation. Gullies are also included in the model, although the coupling between the surface runoff and the sewer network is not considered. Experimental validation of the model is presented in several simplified laboratory configurations of urban catchments, in which the surface runoff has been measured for different hyetographs. The application to a real industrial catchment includes a sewer network flow component, which is solved with the SWMM model. The numerical predictions of the discharge hydrograph generated by a 12 hours storm event are compared with field measurements, providing encouraging results.
本文介绍了二维深度平均浅水模型的实验验证及其在实际工业流域中的应用，该模型用于从直接降水数据计算降雨径流转化。与洪水淹没建模中常用的方法不同，该方法是根据水排放量计算水深和速度场，在本研究中，直接在模型中施加降雨强度，自动生成地表径流。该模型在模拟水流的同时考虑了入渗损失。模型中还包括沟壑，但未考虑地表径流与污水管网之间的耦合。模型的实验验证在几个简化的城市流域实验室配置中进行，其中已经针对不同的雨型测量了地表径流。在实际的工业流域中的应用包括一个污水管网流量组件，该组件使用 SWMM 模型求解。用 12 小时风暴事件生成的流量过程线的数值预测与现场测量进行了比较，结果令人鼓舞。
