Author(s): Zhang Yue; Dai Tingyu; He Lemin; Wang Guomiao; Zhou Lu; E. Bourban Sebastien; Min Jiesheng

Linked Author(s):

Keywords: Open TELEMAC system; Risks management; SWMM; Urban Waterlogging

Abstract: Urban waterlogging often causes significant economic losses and even threatens the safety of people's lives. Digital platforms which could provide forecast and for-alert regarding the city’s water levels and submerged areas under heavy or continuous rainfall help in preventing and mitigating such risks and losses. To facilitate the development of an urban flooding risk management digital platform, a waterlogging prediction model was constructed by integrating the 2D hydrodynamics module of the open TELEMAC system and SWMM (Storm Water Management Model). This coupled model enables the simulation of surface water level changes, considering digital elevation model (DEM) and surface friction, through the 2D hydrodynamic model. Similarly, the underground drainage systems, considering wells and pipelines, are simulated with SWMM. The exchange of variables between the two model is achieved at each time step, ensuing synchronization between the simulation results of surface inundation and underground drainage.

DOI: https://doi.org/10.3850/iahr-hic2483430201-85

Year: 2024