Reference : Detailed 2D flow simulations as an onset for evaluating socio-economic impacts of floods
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/2645
Detailed 2D flow simulations as an onset for evaluating socio-economic impacts of floods
English
Dewals, Benjamin mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
Detrembleur, Sylvain [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
Archambeau, Pierre mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
Erpicum, Sébastien mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydraulique génér., const. hydraul. et méc. des fluides >]
Pirotton, Michel mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
2008
Proceedings of the European Conference on Flood Risk Management - FloodRisk 2008
125-135
Yes
International
European Conference on Flood Risk Management - FloodRisk 2008
Rotterdam
Pays-Bas
[en] A 2D hydraulic numerical model is presented. It is based on the fully dynamic shallow-water equations, solved by means of a finite volume scheme on multiblock structured grids. The model handles highly accurate DSM derived from airborne laser altimetry for the floodplains and sonar detection for the bathymetry of the main channel. The flow simulations are performed with a typical grid spacing of 2m, comparable
to the resolution of the DSM and fine enough to represent reliably the flows at the scale of each building. Consequently, the model succeeds in predicting accurately the pattern of flood depth even in densely urbanized floodplains, as confirmed by several validation examples, which also demonstrate the ability of the model to reproduce depth measurements for a wide range of flood discharges without the need for recalibration
of the roughness coefficient. Finally, the hydraulic model is exploited as a component of a complete flood risk modelling chain, accounting for socio-economic and ecological impacts of floods and dedicated to the assessment of flood protection measures in the context of climate change.
Aquapôle - AQUAPOLE
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/2645

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