Supercritical Flow over a Dentated Sill
Publication: Journal of Hydraulic Engineering
Volume 137, Issue 9
Abstract
Experimental analysis concerning supercritical flow over a dentated sill in nonsubmerged conditions and the local scour downstream of this sill is presented. In this case, the energy dissipation is incomplete so that a scour control downstream of the hydraulic structure could be required. The use of this type of dissipation device could be needed in cases where the maximum flow depth upstream of the sill must be limited to satisfy physical or structural conditions. This could happen, for instance, in the restoration of stilling basin in gravity dams and at the outlet of diversion systems. Experimental and theoretical results, useful in the design of this type of stilling basin and scour control, are presented in the paper, with an application to the case of the Molato Dam in Italy.
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Information
Published In
Journal of Hydraulic Engineering
Volume 137 • Issue 9 • September 2011
Pages: 1019 - 1026
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jan 27, 2010
Accepted: Feb 16, 2011
Published online: Aug 15, 2011
Published in print: Sep 1, 2011
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