Labyrinth and Piano Key Weirs 1st Edition by Sébastien Erpicum, Frédéric Laugier, Jean Louis Boillat, Michel Pirotton, Bernard Reverchon, Anton Schleiss ISBN 0203804066 9780203804063

Labyrinth and Piano Key Weirs 1st Edition by Sébastien Erpicum, Frédéric Laugier, Jean-Louis Boillat, Michel Pirotton, Bernard Reverchon, Anton J. Schleiss – Ebook PDF Instant Download/Delivery: 0203804066, 9780203804063

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Product details:

ISBN 10: 0203804066

ISBN 13: 9780203804063

Author:  Sébastien Erpicum, Frédéric Laugier, Jean-Louis Boillat, Michel Pirotton, Bernard Reverchon, Anton J. Schleiss 

Labyrinth and Piano Key Weirs 1st Edition: 

Labyrinth spillways are almost as old as dam engineering. In spite of the fact that they appear as a very good technical-economical compromise, only 0.1% of large dams are equipped with such weirs. The main reason for this is that traditional labyrinth weirs usually cannot be installed on top of concrete gravity dams as they require a large foundation surface. In 2003 an improved concept of traditional labyrinth spillway emerged, with alveoli developed in overhangs from a reduced support area: the Piano Key Weir (PKW). The Piano Key Weir is a weir of particular geometry, associating to a labyrinth shape the use of overhangs to reduce the basis length. The main advantage of Piano Key Weirs is that it can be directly placed on a dam crest. As a result of extreme fl oods in the recent past, a growing demand for safety in society, and revised hydrological calculations, the need for reliable spillways has consequently become higher. In this context, the Piano Key Weir proves to be an interesting solution to increase the hydraulic capacity of spillway devices.

The book contains the state-of-the-art on this still non-conventional hydraulic structure, and is divided into six main themes:

• Physical Modeling. Hydraulic capacity
• Physical Modeling. Downstream fittings
• Numerical Modeling
• Hydraulic Design
• Planned and achieved projects
• Nomenclature, Database, Future developments.

The papers in Labyrinth and Piano Key Weirs demonstrate that dam engineering currently experiences a strong revival of labyrinth oriented weirs, and are particularly of interest to academia, researchers and professionals working in the area of hydraulic engineering, and to dam control authorities and dam owners.

 

Labyrinth and Piano Key Weirs 1st Edition Table of contents:

Keynote lectures

From Labyrinth to Piano KeyWeirs – A historical review, A.J. Schleiss

General comments on Labyrinths and Piano KeyWeirs: The past and present, F. Lempérière, J.-P. Vigny &A. Ouamane

Hydraulic characteristics of labyrinth weirs, B.M. Crookston & B.P. Tullis

Physical modeling – Hydraulic capacity

PKWeir and flap gate spillway for the Gage II Dam, V. Dugué, F. Hachem, J.-L. Boillat, V. Nagel, J.-P. Roca & F. Laugier

Piano KeyWeir design study at Raviege dam, S. Erpicum, V. Nagel & F. Laugier

Nine years of study of the Piano KeyWeir in the university laboratory of Biskra “lessons and reflections”, A. Ouamane

Influence of the Piano KeyWeir height on its discharge capacity, O. Machiels, S. Erpicum, P. Archambeau, B. Dewals & M. Pirotton

Study of optimization of labyrinth weir, M. Ben Saïd &A. Ouamane

Influence of Piano KeyWeir geometry on discharge, R.M. Anderson & B.P. Tullis

Study of piano-key morning glory to increase the spillway capacity of the Bage dam, G.M. Cicero, M. Barcouda, M. Luck & E. Vettori

Physical modeling – Downstream fittings

Contribution to the study of the Piano KeyWeirs submerged by the downstream level, F. Belaabed &A. Ouamane

Flow properties and residual energy downstream of labyrinth weirs, R. Lopes, J. Matos & J.F. Melo

Energy dissipation on a stepped spillway downstream of a Piano KeyWeir – Experimental study, S. Erpicum, O. Machiels, P. Archambeau, B. Dewals, M. Pirotton & C. Daux

Coupled spillway devices and energy dissipation system at St-Marc Dam (France), M. Leite Ribeiro, J.-L. Boillat, A.J. Schleiss & F. Laugier

Energy dissipation downstream of Piano KeyWeirs – Case study of Gloriettes Dam (France), M. Bieri, M. Federspiel, J.-L. Boillat, B. Houdant, L. Faramond & F. Delorme

Numerical modeling

A sensitivity analysis of Piano KeyWeirs geometrical parameters based on 3D numerical modeling, J. Pralong, F. Montarros, B. Blancher & F. Laugier

Hydraulic comparison between Piano KeyWeirs and labyrinth spillways, B. Blancher, F. Montarros & F. Laugier

1D numerical modeling of the flow over a Piano KeyWeir, S. Erpicum, O. Machiels, P. Archambeau, B. Dewals & M. Pirotton

Influence of structural thickness of sidewalls on PKW spillway discharge capacity, F. Laugier, J. Pralong & B. Blancher

Experimental study of side and scale effects on hydraulic performances of a Piano KeyWeir, G.M. Cicero, J.M. Menon, M. Luck &T. Pinchard

Hydraulic design

Study of optimization of the Piano KeyWeir, A. Noui &A. Ouamane

Experimental parametric study for hydraulic design of PKWs, M. Leite Ribeiro, J.-L. Boillat, A.J. Schleiss, O. Le Doucen & F. Laugier

Main results of the P.K weir model tests in Vietnam (2004 to 2010), M. Ho Ta Khanh, T. Chi Hien & N. Thanh Hai

Piano KeyWeir preliminary design method – Application to a new dam project, O. Machiels, S. Erpicum, P. Archambeau, B. Dewals & M. Pirotton

Method to design a PK-Weir with a shape and hydraulic performances, G.M. Cicero

Planned and existing projects

Lessons learnt from design and construction of EDF first Piano KeyWeirs, J. Vermeulen, F. Laugier, L. Faramond & C. Gille

P.K weirs under design and construction in Vietnam (2010), M. Ho Ta Khanh, D. Sy Quat & D. Xuan Thuy

Spillway capacity upgrade at Malarce dam: Design of an additional Piano KeyWeir spillway, T. Pinchard, J.-M. Boutet & G.M. Cicero

Rehabilitation of Sawara Kuddu Hydroelectric Project – Model studies of Piano KeyWeir in India, G. Das Singhal & N. Sharma

A dam equipped with labyrinth spillway in the Sultanate of Oman, L. Bazerque, P. Agresti, C. Guilbaud, S. Al Harty &T. Strobl

Labyrinth fusegate applications on free overflow spillways – Overview of recent projects, M. Le Blanc, U. Spinazzola & H. Kocahan

Nomenclature, data base, future developments

A naming convention for the Piano KeyWeirs geometrical parameters, J. Pralong, J. Vermeulen, B. Blancher, F. Laugier, S. Erpicum, O. Machiels, M. Pirotton, J.-L. Boillat, M. Leite Ribeiro &A.J. Schleiss

Creation of a PKW Database – Discussion, J.-L. Boillat, M. Leite Ribeiro, J. Pralong, S. Erpicum & P. Archambeau

Development of a new concept of Piano KeyWeir spillway to increase low head hydraulic efficiency: Fractal PKW, F. Laugier, J. Pralong, B. Blancher & F. Montarros

General comments on labyrinths and Piano KeyWeirs – The future, F. Lempérière & J.-P. Vigny

Research axes and conclusions, S. Erpicum & J.-L. Boillat

 

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Sébastien Erpicum,Frédéric Laugier,Jean Louis Boillat,Michel Pirotton,Bernard Reverchon,Anton Schleiss,Labyrinth,Piano,Key,Weirs