Article (Scientific journals)
Porosity Models for Large-Scale Urban Flood Modelling: a Review
Dewals, Benjamin; Bruwier, Martin; Pirotton, Michel et al.
2021In Water
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Keywords :
urban flood modelling; porosity; shallow-water model; inondation; crue; risque
Abstract :
[en] In the context of large-scale urban flood modelling, porosity shallow-water models enable a con-siderable speed-up in computations, while preserving information on subgrid topography. Over the last two decades, major improvements have been brought to these models; but a single gen-erally accepted model formulation has not yet been reached. Instead, existing models vary in many respects. Some studies define porosity parameters at the scale of the computational cells or cell interfaces, while others treat the urban area as a continuum and introduce statistical-ly-defined porosity parameters. The porosity parameters are considered either isotropic or aniso-tropic, and depth-independent or depth-dependent. The underlying flow models are based either on the full shallow-water equations, or on approximations thereof, with various parametrizations of flow resistance. Here, we provide a review of the spectrum of porosity models developed so far for large scale urban flood modelling.
Research center :
UEE - Urban and Environmental Engineering - ULiège
Disciplines :
Civil engineering
Author, co-author :
Dewals, Benjamin  ;  Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering
Bruwier, Martin 
Pirotton, Michel ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Erpicum, Sébastien  ;  Université de Liège - ULiège > Scientifiques attachés au Doyen (Sc.appliquées)
Archambeau, Pierre  ;  Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Language :
English
Title :
Porosity Models for Large-Scale Urban Flood Modelling: a Review
Publication date :
2021
Journal title :
Water
eISSN :
2073-4441
Publisher :
MSPI, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 March 2021

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