Analysis of extreme flooding events through a calibrated 1D/2D coupled model: the case of Barcelona (Spain)

摘要: This paper presents the results of a calibrated 1D/2D coupled model simulating surface and sewer flows in Barcelona. The covers 44 km2 city land involving 241 km sewers. It was developed order to assess flood hazard Raval district, historically affected by flooding during heavy rainfalls. Special attention paid hydraulic characterization inlet systems (representing interface between underground flows), through experimental expressions used estimate effective runoff into sewers case storms. A 2D unstructured mesh with more than 400,000 cells created on basis detailed digital terrain model. validated using four sets well-recorded events that occurred 2011. aim this is show how can be adequately wide set sensors post-event collected data (videos, photos, emergency reports, etc.). Moreover, significant computational time savings via parallel processing hardware configuration. Considering performances achieved, for real-time strategies as core early warning systems.