Piano Key Weirs (PKW) are a new type of weir, showing very good floodrelease capacities as well as strong economic and structural benefits. However, lacksof understanding persist about the flow conditions on such structures. With the goalto fill some of these lacks, a combined experimental and numerical study has beenundertaken at the Laboratory of Structures Hydraulics of the University of Liege. This paper presents the goals and the scientific strategy of this research. Thefirst results of experiments being carried out on a large physical model of PKW arealso depicted. These experiments lead to characterization of the flow behavior for lowheads and enable to highlight the influence of the crest thickness and the outlet slopeon the release capacity.
展开▼
