Effect of Breaking Waves and External Current on Longshore Sediment Transport
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 138, Issue 3
Abstract
The effects of external currents on the longshore current and sediment transport in the surf zone are examined using the cross-shore numerical model CSHORE, which is extended to include the alongshore pressure gradient term in the longshore momentum equation and to allow oblique waves in the swash zone on a beach. The extended CSHORE is compared with five tests conducted in a wave basin with a recirculation system. The cross-shore variations of the longshore current and sediment-transport rate are predicted fairly well for the cases of no and favorable pressure gradients. The cases of adverse and time-varying pressure gradients are computed to extrapolate the experimental results for wider applications.
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Acknowledgments
This study was supported by the U.S. Army Corps of Engineers, Coastal and Hydraulic Laboratory under Contract Nos. W912BU-09-R-0031 and W912HZ-10-P-0234.
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Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 138 • Issue 3 • May 2012
Pages: 256 - 260
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Jul 30, 2010
Accepted: Sep 14, 2011
Published online: Sep 17, 2011
Published in print: May 1, 2012
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