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Conference Papers Year : 2003

Impact - Flood propagation. Isolated building test case

Impact - Propagation de crue. Cas test du bâtiment isolé

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Emmanuel Mignot
André Paquier

Abstract

The aim of the IMPACT project "Isolated building test case" is to investigate the effect thatcould have a building placed within a dam-break flow. An experimental study took place inUCL within a 3.6 m width open channel. The upstream part of the channel was used as areservoir where steady water was stocked until the beginning of the experiment. At thereservoir downstream boundary, the width of the channel was lowered to 1 m in order toconcentrate the flow and represent a natural dam-break when opening the closing gate. Ataround 3.5 m downstream the reservoir, in front of the gate, a 0.8 x 0.4 m impervious buildingwas introduced with a specific angle to the flow direction. Measurements at 6 gauge pointswere taken in order to compare the experimental data available with the results of thesimulations.The numerical simulations were done before receiving the experimental records not to allowcalibration beforehand. Among the calculations, three simulations were selected, using adifferent meshing and they give slightly different results. Afterwards, the three simulationswere compared with the experimental records. We present in this report, the three simulations,their results and differences, and then the comparison with the experiment.
Il s`agit du calcul numérique d`un essai effectué sur modèle réduit composé d`un obstacle représentant un bâtiment urbain isolé. Les comparaisons se font à partir des données relevées et calculées en points spécifiques du dispositif.Ce travail entre dans le cadre du projet europeen Impact.

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Dates and versions

hal-02583258 , version 1 (14-05-2020)

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Cite

Emmanuel Mignot, André Paquier. Impact - Flood propagation. Isolated building test case. 3rd IMPACT Worshop, Louvain La Neuve, BEL, 2003, 2003, France, France. ⟨hal-02583258⟩

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