Hydraulic Jumps on Rough Beds
Publication: Journal of Hydraulic Engineering
Volume 133, Issue 9
Abstract
This paper presents the results of an experimental investigation on the hydraulic jump on horizontal rough beds. Experiments were carried out to study the effect of bed roughness on both the sequent depth ratio and the roller length. The investigation allowed the writers to positively test the reliability of a new solution of the momentum equation for the sequent depth ratio as a function of the Froude number and the ratio between the roughness height and the upstream supercritical flow depth. The applicability of some empirical relationships for estimating the roller length was also tested.
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Acknowledgments
The research was carried out with the financial support of Grant No. PRIN 2004 “Studio delle rampe in pietrame con modelli di laboratorio a differenti scale”—Ministero Istruzione, Università e Ricerca Scientifica–Governo Italiano. The writers are indebted to the anonymous reviewers and the Associate Editor for the useful comments and suggestions which improved the original manuscript.
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© 2007 ASCE.
History
Received: May 16, 2005
Accepted: Mar 27, 2007
Published online: Sep 1, 2007
Published in print: Sep 2007
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