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Method for the preliminary design of Piano Key Weirs / O. Machiels in La Houille blanche, N° 4-5 (Octobre 2012) 

Public ISBD [article]  in La Houille blanche > N° 4-5 (Octobre 2012) . - pp. 14-18 Titre : Method for the preliminary design of Piano Key Weirs Titre original : Méthode de pré-dimensionnement pour les déversoirs en touches de piano Type de document : texte imprimé Auteurs : O. Machiels, Auteur ; Erpicum, S., Auteur ; Archambeau, P., Auteur Année de publication : 2012 Article en page(s) : pp. 14-18 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Piano  Key  Weirs  Design  method Résumé : The Piano Key Weir (PKW) is a particular geometry of weir associating to a labyrinth shape the use of overhangs to reduce the basis length. The PKW could thus be directly placed on a dam crest. Together with its important discharge capacity for low heads, this geometric feature makes the PKW an interesting solution for dam rehabilitation. However, its hydraulic design remains problematic, even at a preliminary stage. This paper presents a preliminary design method based on results of experimental tests. The method enables to design project models by extrapolation of characteristics of existing idealized scale models. A practical application is presented to illustrate the method. ISSN : 0018-6368 En ligne : http://www.shf-lhb.org/index.php?option=com_article&access=standard&Itemid=129&u [...] [article] Method for the preliminary design of Piano Key Weirs = Méthode de pré-dimensionnement pour les déversoirs en touches de piano [texte imprimé] / O. Machiels, Auteur ; Erpicum, S., Auteur ; Archambeau, P., Auteur . - 2012 . - pp. 14-18. Hydraulique Langues : Anglais (eng) in La Houille blanche > N° 4-5 (Octobre 2012) . - pp. 14-18 Mots-clés : Piano  Key  Weirs  Design  method Résumé : The Piano Key Weir (PKW) is a particular geometry of weir associating to a labyrinth shape the use of overhangs to reduce the basis length. The PKW could thus be directly placed on a dam crest. Together with its important discharge capacity for low heads, this geometric feature makes the PKW an interesting solution for dam rehabilitation. However, its hydraulic design remains problematic, even at a preliminary stage. This paper presents a preliminary design method based on results of experimental tests. The method enables to design project models by extrapolation of characteristics of existing idealized scale models. A practical application is presented to illustrate the method. ISSN : 0018-6368 En ligne : http://www.shf-lhb.org/index.php?option=com_article&access=standard&Itemid=129&u [...]