Stepped Spillway as an Energy Dissipater

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dc.contributor.author Chatila, Jean G.
dc.contributor.author Jurdi, Bassam R.
dc.date.accessioned 2016-02-03T10:22:35Z
dc.date.available 2016-02-03T10:22:35Z
dc.date.copyright 2004
dc.date.issued 2016-05-09
dc.identifier.issn 0701-1784 en_US
dc.identifier.uri http://hdl.handle.net/10725/2993
dc.description.abstract This paper describes an experimental investigation into the hydraulics of ogee-profile stepped spillways, examines their viability as an alternative to smooth-back spillways and investigates their efficiency in reducing the downstream energy and length of the hydraulic jump. Tests were performed in a long rectangular flume with glass walls on both sides. One smooth model was used as a benchmark for comparison with stepped models made out of a combination of crests and bottoms of different step heights. Significant reductions in terminal velocities and total energies were observed, where the stepped spillway profiles tested proved to be very effective in terms of energy dissipation for flows of the order of the design head or lower. For flows beyond the design head, the effectiveness of the stepped spillway configuration was reduced and became negligible for heads greater than one and a half times the design head. It was concluded that the number of steps is the overbearing factor in expending flow kinetic energy and, therefore, reducing the length of the downstream forming hydraulic jump. en_US
dc.language.iso en en_US
dc.title Stepped Spillway as an Energy Dissipater en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 199690300 en_US
dc.author.woa N/A en_US
dc.author.department Civil Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Canadian Water Resources Journal en_US
dc.journal.volume 29 en_US
dc.journal.issue 3 en_US
dc.article.pages 147-158 en_US
dc.identifier.doi http://dx.doi.org/10.4296/cwrj147 en_US
dc.identifier.ctation Chatila, J. G., & Jurdi, B. R. (2004). Stepped spillway as an energy dissipater.Canadian Water Resources Journal, 29(3), 147-158. en_US
dc.author.email jchatila@lau.edu.lb
dc.identifier.url http://www.tandfonline.com/doi/abs/10.4296/cwrj147#.V6lvUJh97cs

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