Mechanics of Three-Dimensional Pipeline Scour in Unidirectional Steady Current
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 4, Issue 1
Abstract
The three-dimensional flow velocity components at the span shoulder, which is located at the junction of a submarine pipeline and the associated scour hole, are measured in unidirectional steady current in order to investigate the flow structure and mechanics of the lateral propagation of a three-dimensional pipeline-scour hole. A naturally formed three-dimensional scour hole around a modeled pipeline is immobilized using adhesive, giving a steady flow field around the fixed boundary. A three-dimensional down-looking acoustic Doppler velocimeter is then used to measure the flow velocities at several critical sections. Combined with the measured data and observations made in the study, the flow characteristics and other factors that affect propagation of the three-dimensional pipeline-scour hole in steady current are discussed.
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Acknowledgments
The authors would like to acknowledge the support from DHI-NTU Water & Environment Research Center and Education Hub. The first author also wishes to acknowledge the financial support given by Nanyang Technological University for his doctoral study.
References
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Information & Authors
Information
Published In
Journal of Pipeline Systems Engineering and Practice
Volume 4 • Issue 1 • February 2013
Pages: 3 - 10
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 29, 2011
Accepted: Jun 15, 2012
Published ahead of production: Jul 3, 2012
Published online: Jan 15, 2013
Published in print: Feb 1, 2013
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