Hydrodynamic Characteristics of a Suspended Curtain for Sediment Trapping
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 141, Issue 1
Abstract
Simple and effective technologies for promoting deposition and preventing scour have become the focus of intense research in recent years. This study investigated the hydrodynamic characteristics of an improved single suspended curtain (SC) structure for sediment trapping. The SC consisted of a thin, durable floating sheet, strings, and holding anchors. The floating sheet was fixed to the bed by the strings and anchors. The curtain itself was rigid, but could be free to orientate with the approaching flow. The majority of the flow passed over the curtain, and a large transverse recirculation zone developed on the lee side of the curtain. The inclination of the SC, recirculation zone, and forces on the SC under uniform flow condition were investigated. In addition, corresponding empirical formulas were proposed for calculating the inclination angle, recirculation length, drag coefficient, and anchoring force.
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Acknowledgments
Financial support provided by the National Natural Science Foundation of China through Grant 51179101 is acknowledged. The authors also appreciate the editor, assistant editor, and reviewers for their comments and constructive suggestions on the revision of this paper.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 141 • Issue 1 • January 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 25, 2013
Accepted: May 2, 2014
Published online: May 29, 2014
Published in print: Jan 1, 2015
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