Author(s): G. M. Cicero

Linked Author(s):

Keywords: Hydraulic; Piano-key-weir; Discharge; Free-flow; Submerged flow

Abstract: The Piano Key Weir (PKW) is a type of labyrinth weir with efficient hydraulic performance especially at low heads.Since the primary parameters were extensively studied, Electricité De France (EDF) launched a new experimental program to improve the knowledge of some secondary parameters such as the overhangs, the crest shape and the dam height. This program included the testing of a trapezoidal shape and of PKWs under submerged conditions.The data measured under free-flow conditions were also used to validate empirical correlations and numerical models Wolf 1D PKW and Flow 3D. This article gives an overview of the program and highlights the main experimental and numerical results.

DOI: https://doi.org/10.15142/T3320628160853

Year: 2016