Reference : Numerical and physical hydraulic modelling of Piano Key Weirs
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/118147
Numerical and physical hydraulic modelling of Piano Key Weirs
English
[fr] Modélisation hydraulique physique et numérique des déversoirs en touches de piano
Erpicum, Sébastien mailto [Université de Liège - ULg > Services généraux (Faculté des sciences appliquées) > Scientifiques attachés au Doyen (Sc.appliquées) >]
Machiels, Olivier mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Dewals, Benjamin mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydraulics in Environmental and Civil Engineering >]
Pirotton, Michel mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Archambeau, Pierre mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Mar-2012
Proceedings of the 4th Int. Conf. on Water Resources and Renewable Energy Development in Asia
No
Yes
International
Asia 2012 - 4th Int. Conf. on Water Resources and Renewable Energy Development in Asia
26 & 27 mars 2012
Int. Journal on Hydropower and Dams
Chiang Mai
Thailande
[en] PKW ; Numerical modeling ; Physical modeling ; Hydraulic structure ; Scale model
[en] During the last few years, several piano key weirs (PKWs) have been built in France by Electricité de France (EDF). Thanks to the reduced footprint and high release capacities of this new type of weir, making it particularly suited for concrete dams rehabilitation, lots of other projects in varied countries are under construction or study. The prototype use of PKW requires knowledge about its structural behaviour, hydraulic capacities as well as integration into dams’ environment. This paper aims at presenting numerical and physical modelling works performed at the University of Liege to address the last two points. In particular, large scale physical modelling and parametric scale models enabled to understand the hydraulic behaviour of the structure and to highlight its main geometric parameters as well as their best variation interval depending on various criteria related to the weir design (discharge efficiency, cost…). A 1D numerical model has also been developed based on these experimental investigations. It enables to predict in a few minutes, with 10% accuracy, the discharge capacity of a given PKW geometry on its usual operation head range. This model, available as a freeware on http://www.pk-weirs.ulg.ac.be, constitutes a key tool for the first design of such weirs. Finally, the scale model studies of major projects such as Raviège dam (France) for EDF and Ouldjet Mellegue Project (Algeria) for Coyne et Bellier – Tractebel Engineering enable to confront theoretical predictions with experimental results and to address the problem of PKW integration on dam crests.
Aquapôle - AQUAPOLE ; Argenco
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/118147

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