Nappe (water)
Encyclopedia
The term Nappe when used in relation to hydro-engineering refers to the sheet of water over-topping a dam. It is an important issue in dam construction because unless air can be introduced into the nappe, the vibration of the water can lead to dam failure, as occurred in the Vajont Dam
disaster in Italy in 1963.
Nappe vibration can be managed by flow splitter
s in the dam wall design.
Vajont Dam
The Vajont Dam is a disused dam, completed in 1959 in the valley of the Vajont river under Monte Toc, 100 km north of Venice, Italy...
disaster in Italy in 1963.
Nappe vibration can be managed by flow splitter
Flow splitter
A flow splitter, in hydraulic engineering, is any device designed to break up the flow of water or nappe over a dam wall or weir. Flow splitters are used to reduce the likelihood of nappe vibration that might cause the failure of a dam wall by aerating the water flow...
s in the dam wall design.