Communication Dans Un Congrès Année : 2025

Experimental analysis on the influence of urban forms on unsteady urban flooding

Résumé

Unsteady urban flooding, such as dam-break waves, poses catastrophic risks to downstream populations and results in severe damage. To assess and mitigate these risks, it is essential to forecast the influence of urban forms on flooding severity. In this paper, datasets are provided from reduced-scale physical experiments of transient flow through idealized suburban districts. The experiments are conducted in a rectangular horizontal open channel, where flow conditions are achieved by rapidly opening a gate holding a volume of water. To evaluate the impact of urban forms on flow behavior, we investigated two urban parameters; the number and width of streets in the main direction of the flow. The experiments provide complete water hydrographs for thirteen urban forms. Conductive and acoustic gauges are positioned at different locations to track the wavefront and water depth variation. The results illustrate the impact of the two studied urban parameters on flow variables and provide valuable validation data for computational urban planning models.

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Dates et versions

hal-05066817 , version 1 (14-05-2025)

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Identifiants

  • HAL Id : hal-05066817 , version 1

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Elisa Beteille, Sébastien Boyaval, Frédérique Larrarte, Eric Demay. Experimental analysis on the influence of urban forms on unsteady urban flooding. River Flow 2024 - 12th International Conference on Fluvial Hydraulics, Sep 2024, Liverpool, United Kingdom. ⟨hal-05066817⟩
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