ORBi: Machiels Olivier - Influence of the PKW height on its discharge capacity

Reference : Influence of the PKW height on its discharge capacity


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Civil engineering
	To cite this reference:	http://hdl.handle.net/2268/82755

Title :	Influence of the PKW height on its discharge capacity
Language :	English
Author, co-author :	Machiels, Olivier [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
	Erpicum, Sébastien [Université de Liège - ULg > Services généraux (Faculté des sciences appliquées) > Scientifiques attachés au Doyen (Sc.appliquées) >]
	Archambeau, Pierre [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
	Dewals, Benjamin [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
	Pirotton, Michel [Université de Liège - ULg > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH) >]
Publication date :	2011
Main document title :	Labyrinth and Piano Key Weirs - PKW 2011
Editor :	Erpicum, Sébastien
	Laugier, Frédéric
	Boillat, Jean Louis
	Pirotton, Michel
	Reverchon, Bernard
	Schleiss, Anton
Publisher :	CRC Press/Balkema
Pages :	59-66
Peer reviewed :	Yes
On invitation :	No
Audience :	International
ISBN :	978-0-415-68282-4
City :	Leiden
Country :	The Netherlands
Event name :	1st workshop on labyrinth and Piano Key weirs
Event date :	du 09 février 2011 au 11 février 2011
Event organizer :	ULg-HACH
Event place (city) :	Liège
Event country :	Belgium
Keywords :	[en] PKW ; Experimental ; Parametric
Abstract :	[en] Within the framework of Piano Key Weir (PKW) development, the hydraulic optimization of its geometry seems essential. First systematic studies of all the geometrical parameters of the PKW highlight a more important influence of some parameters compared to other ones. A former study led, at the University of Liege, on a large scale model of PKW highlights the main influence of the inlet cross section on the global discharge capacity of the weir. Based on this finding, the geometrical parameters influencing the inlet cross section seem to be the most influential parameters of the weir efficiency. This paper presents results of an experimental study using models of PKW with varying height. The mean non-dimensional parameters characterizing the geometry of the models are maintained constant, only varying the slope of the alveoli. The results of the 7 models studied, with a wide range of slopes (height over length) from 0.25 to 1.5, are presented. Based on these results, an analytical formulation of the unit discharge over a PKW as a function of its height is developed.
Research units :	Aquapôle - AQUAPOLE
Funders :	Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/82755

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