Validation of a Risk-Based Numerical Model for Predicting Deep-Draft Underkeel Clearance
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 139, Issue 4
Abstract
The channel analysis and design evaluation tool (CADET) is a numerical program to determine the optimum dredge depth for the offshore portions of entrance channels. A brief description of the theoretical basis and risk assessment in CADET is presented. Validation comparisons between CADET predictions and field measurements of wave-induced vertical motions at Ambrose Channel, New York, are presented. Prototype ship motions were measured with a differential global positioning system in April 1998 along three 488-m-long reaches. Comparisons were made with six ships, three tankers and three containerships, during inbound and outbound transits. In general, the CADET predictions matched the field measurements reasonably well, especially considering the wave heights were relatively small during the measurement period.
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Acknowledgments
The authors wish to acknowledge Headquarters, U.S. Army Corps of Engineers, the Institute for Water Resources (IWR), and the Naval Surface Warfare Center, Carderock Division, for authorizing publication of this paper. This study was supported by the Coastal and Hydraulics Laboratory (CHL) Improved Ship Simulations Work Unit in the Navigation Systems Research Program and the IWR Optimization Tools for Navigation (OTN) Program. The authors would like to acknowledge the assistance of the New York District, and Randy McCollum and Terry Waller, CHL, for providing channel, ship, and DGPS data. The authors also wish to thank the reviewers for their useful suggestions.
References
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Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 139 • Issue 4 • July 2013
Pages: 267 - 276
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 1, 2012
Accepted: Jun 11, 2012
Published online: Jul 28, 2012
Published in print: Jul 1, 2013
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