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Subcritical wave wake unsteadiness
journal contribution
posted on 2023-05-17, 10:17 authored by Robbins, A, Giles Thomas, Martin RenilsonMartin Renilson, Gregor MacFarlaneGregor MacFarlaneVessel wave wake in deep water is well understood, shallow water less so, specifically the effect of restricted water. This operational zone is highly dynamic and non-linear in nature, thus being worthy of closer examination. The paper reviews the primary mechanisms for unsteadiness in wave wake: starting acceleration and soliton generation. A comprehensive set of experiments was conducted using an NPL catamaran hull form to investigate unsteadiness in both wave height and wave angle. The results show that the unsteadiness was primarily due to soliton generation, and that blockage has a significant effect. As a result, additional metrics, aimed at defining shallow water effects in the transcritical region, are proposed.
History
Publication title
International Journal of Maritime EngineeringVolume
153Issue
A3Pagination
153-161ISSN
1479-8751Department/School
Australian Maritime CollegePublisher
Royal Institution of Naval ArchitectsPlace of publication
London, UKRights statement
Copyright 2011 Royal Institution of Naval ArchitectsRepository Status
- Restricted