Backwater Prediction due to the Blockage Caused by a Single, Submerged Spur Dike in an Open Channel
Publication: Journal of Hydraulic Engineering
Volume 134, Issue 8
Abstract
A method is proposed for predicting the backwater effect due to a single, submerged spur dike located within an open channel flow. A theoretical analysis based on the momentum principle relates the backwater effect to the drag force exerted by the spur dike on the flow. Experimental data obtained in laboratory flumes having subcritical flow conditions throughout the flow field have been used in developing predictive relationships for the spur dike drag coefficient, which is found to be strongly correlated to the blockage created by the spur dike within the flow cross section. The predictive relationships provide a means of obtaining a first-level estimate of the backwater effect due to a single, submerged spur dike in an open channel flow.
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Acknowledgments
Financial support for this research has been provided by a Univ. of Saskatchewan graduate scholarship to the first writer and by funding from the Natural Sciences and Engineering Research Council of Canada through a grant to the second writer. This support is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 134 • Issue 8 • August 2008
Pages: 1153 - 1157
Copyright
© 2008 ASCE.
History
Received: Jul 27, 2005
Accepted: Nov 27, 2007
Published online: Aug 1, 2008
Published in print: Aug 2008
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