Reference : Influence of weir height and keys slope on PKW discharge
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/114783
Influence of weir height and keys slope on PKW discharge
English
Machiels, Olivier mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Erpicum, Sébastien mailto [Université de Liège - ULg > Services généraux (Faculté des sciences appliquées) > Scientifiques attachés au Doyen (Sc.appliquées) >]
Archambeau, Pierre 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) >]
2012
Proceedings of 4th IAHR International Symposium on Hydraulic Structures
APRH
Yes
No
International
978-989-8509-01-7
Lisboa
Portugal
4th IAHR International Symposium on Hydraulic Structures
9-11 February 2012
IAHR & APRH
Porto
Portugal
[en] Piano Key Weir is a cost effective solution for rehabilitation as well as for new dam projects with a high level of constraints (limited space, high specific flood discharge, small reservoir level variation). While the higher efficiency of the Piano Key Weir compared to standard linear weirs has already been demonstrated, its optimal geometry is still poorly defined. Even if former studies highlighted the main influence of the weir height on its discharge capacity, the distinction between weir height effect and keys slope one is not so straight forward. In order to distinguish the influence of these two parameters, the use of parapet walls has been tested to increase weir height keeping bottom slope constant, and to decrease keys slope keeping the weir height constant. The experimental results presented in this paper enable to distinguish the relative influences of the keys bottom slope and of the weir height on the Piano Key Weir release capacity. Comparisons with former experimental results as well as design guidelines are also provided.
Aquapôle - AQUAPOLE
Researchers ; Professionals
http://hdl.handle.net/2268/114783

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