Arced Labyrinth Weirs
Publication: Journal of Hydraulic Engineering
Volume 138, Issue 6
Abstract
The discharge capacity and hydraulic efficiency of a labyrinth weir can be increased with an Arced cycle configuration. An Arced geometric layout for labyrinth weirs is presented, including nomenclature for arc-specific geometric variables. Discharge coefficients as a function of for half-round trapezoidal Arced labyrinth weirs with 6 and 12° sidewall angles are also presented. The hydraulic performance of the tested Arced labyrinth weir geometries is compared to Projecting and in-channel labyrinth configurations and to an arced weir (horseshoe weir) with a half-round crest, including the effects of approaching flow conditions and local submergence. Differences between geometrically similar and geometrically comparable Arced labyrinth weirs are identified and discussed.
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Acknowledgments
Funding for this study was provided by the State of Utah and the Utah Water Research Laboratory (Utah State University).
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 138 • Issue 6 • June 2012
Pages: 555 - 562
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Mar 15, 2011
Accepted: Jan 3, 2012
Published online: Jan 5, 2012
Published in print: Jun 1, 2012
Published ahead of production: Jun 15, 2012
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