10.4122/1.1000001737
Renouf, E.
E.
Renouf
Mignot, A. Paquier*+
A. Paquier*+
Mignot
Assessment of the exchanges between sewage network and surface water during flooding of the town of Oullins
DTU Library, Technical University of Denmark (DTU)
2005
Conference presentation
Urban flooding
Numerical simulation
Oullins
Coupling of models
3 Bis Quai Chauveau, Cemagref Lyon
2005
en
10.4122/1.1000001738
text/xml
Oullins is a small city that suffers frequent flooding either from Yzeron River overflow or from the sewage network overflows during storm event. In December 2003, both causes join to provoke severe damages in the lower part of the city. Two models were built. One simulates the flows in the sewage network solving 1-D de Saint Venant equations. The second one, solving 2-D shallow water equation, represents Yzeron main channel and associated flood plain that extends over the lower part of Oullins both on left and right banks. The two models are independently calibrated. Coupling between these two models is performed in order to examine if an accurate representation of the exchanges between sewage flows and surface flows could improve the simulation of the 2003's flood. The final aim of the study will be the design of the works to improve the operation of the sewage network during an event similar to the last flood.