Temporal Development of Propeller Scour around a Sloping Bank
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 144, Issue 5
Abstract
This study presents results of the temporal development of propeller scour around a sloping bank. During the scouring process, the centerline scour profile along the propeller axis comprises a toe scour hole, a primary scour hole, or a combination of both. Their formation is dependent on the length of the toe clearances, which is defined as the longitudinal distance between the propeller face and toe of the slope. As a result, the overall maximum scour depth along the centerline profile may occur either in the primary or toe scour hole. The results show that the temporal development of the overall maximum scour depth for all the cases consistently exhibits an exponential form. An empirical method was obtained to estimate the maximum scour depth evolution throughout the scouring process.
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Acknowledgments
The authors acknowledge the financial support provided by Nanyang Technological University for this research.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 144 • Issue 5 • September 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Oct 10, 2017
Accepted: Mar 5, 2018
Published online: Jun 14, 2018
Published in print: Sep 1, 2018
Discussion open until: Nov 14, 2018
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