Reference : Influence of urban pattern on inundation flow in floodplains of lowland rivers
Scientific journals : Article
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/216580
Influence of urban pattern on inundation flow in floodplains of lowland rivers
English
Bruwier, Martin mailto [Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering >]
Mustafa, Ahmed Mohamed El Saeid mailto [Université de Liège - ULiège > Département ArGEnCo > LEMA (Local environment management and analysis) >]
Aliaga, Daniel G. [Purdue University - Purdue > Department of Computer Science > > >]
Archambeau, Pierre mailto [Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Erpicum, Sébastien mailto [Université de Liège - ULiège > > Scientifiques attachés au Doyen (Sc.appliquées) >]
Nishida, Gen [Purdue University - Purdue > Department of Computer Science > > >]
Zhang, Xiao [Purdue University - Purdue > Department of Computer Science > > >]
Pirotton, Michel mailto [Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Teller, Jacques mailto [Université de Liège - ULiège > Département ArGEnCo > Urbanisme et aménagement du territoire >]
Dewals, Benjamin mailto [Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering >]
1-May-2018
Science of the Total Environment
Elsevier Science
622–623
Yes (verified by ORBi)
International
0048-9697
1879-1026
Amsterdam
The Netherlands
[en] Urban floods ; Flood mitigation ; Porosity hydraulic model ; Procedural modelling
[en] The objective of this paper is to investigate the respective influence of various urban pattern characteristics on inundation flow. A set of 2,000 synthetic urban patterns were generated using an urban procedural model providing locations and shapes of streets and buildings over a square domain of 1 x 1 km². Steady two-dimensional hydraulic computations were performed over the 2,000 urban patterns with identical hydraulic boundary conditions. To run such a large amount of simulations, the computational efficiency of the hydraulic model was improved by using an anisotropic porosity model. This model computes on relatively coarse computational cells, but preserves information from the detailed topographic data through porosity parameters. Relationships between urban characteristics and the computed inundation water depths have been based on multiple linear regressions. Finally, a simple mechanistic model based on two district-scale porosity parameters, combining several urban characteristics, is shown to capture satisfactorily the influence of urban characteristics on inundation water depths. The findings of this study give guidelines for more flood-resilient urban planning.
ARC grant for Concerted Research Actions, financed by the Wallonia-Brussels Federation
FloodLand
Researchers ; Professionals
http://hdl.handle.net/2268/216580
10.1016/j.scitotenv.2017.11.325

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