Article (Scientific journals)
Influence of urban forms on long-duration urban flooding: laboratory experiments and computational analysis
Li, Xuefang; Erpicum, Sébastien; Mignot, Emmanuel et al.
2021In Journal of Hydrology, 603, p. 127034
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Keywords :
Urban flooding; Urban forms; Laboratory model; Numerical modelling; Flood risk; Flood risk management; Crues; Inondations urbaines; Gestion du risque d'inondation
Abstract :
[en] Water-sensitive urban design is an integral part of flood risk management. Based on computational modelling, we investigated the influence of various urban forms on flooding severity at the level of an urban block and for the case of long-duration urban flooding. The upstream flow depths, downstream discharge partition and flow exchange through the urban forms were examined. The results indicate that one urban characteristic has an overwhelming influence on the flow variables: the conveyance porosity in the main flow direction is by far more influential than the conveyance porosity in the normal direction or the number of streets. Such anisotropic effect was not pointed in recent similar studies, and it hints at practical guidelines for sustainable urban planning in practice. Moreover, the computational model was verified against laboratory observations, which constitute a novel valuable dataset for the validation of other urban flooding models.
Research center :
UEE - Urban and Environmental Engineering - ULiège
Disciplines :
Civil engineering
Author, co-author :
Li, Xuefang ;  Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering
Erpicum, Sébastien  ;  Université de Liège - ULiège > Scientifiques attachés au Doyen (Sc.appliquées)
Mignot, Emmanuel;  INSA Lyon, France > LMFA
Archambeau, Pierre  ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Pirotton, Michel ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Dewals, Benjamin  ;  Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering
Language :
English
Title :
Influence of urban forms on long-duration urban flooding: laboratory experiments and computational analysis
Publication date :
2021
Journal title :
Journal of Hydrology
ISSN :
0022-1694
eISSN :
1879-2707
Publisher :
Elsevier, Netherlands
Volume :
603
Pages :
127034
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 02 October 2021

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