Reference : Hydraulic modelling of Piano Key Weirs: a composite approach
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/123151
Hydraulic modelling of Piano Key Weirs: a composite approach
English
[fr] Modélisation hydraulique des déversoirs en touches de piano: une approche combinée
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) >]
Archambeau, Pierre mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Pirotton, Michel 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 >]
May-2012
Proceedings of International workshop on Piano Key Weir for In-stream Storage and Dam Safety - PKWISD-2012
53-63
No
Yes
International
International workshop on Piano Key Weir for In-stream Storage and Dam Safety - PKWISD-2012
May 30th - June 1st, 2012
Indian Water Resources Society; Indian Institute of Technology Roorkee; University of Petroleum & Energy Study, Dehradun, India
New Delhi
India
[en] Numerical modeling ; Physical modeling ; Parametric study ; Scale model
[en] During the last few years, several piano key weirs (PKWs) have been built in France and abroad. 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 various 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 items. In particular, large scale physical modelling and parametric scale models have enabled to understand the hydraulic behaviour of the structure and to highlight its most influencing 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 within its usual range of operation head. This model, available as a freeware from 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 Electricité de France - 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.
Argenco; Aquapôle
Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/123151
also: http://hdl.handle.net/2268/124868

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