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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 MacFarlane
Vessel 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 Engineering

Volume

153

Issue

A3

Pagination

153-161

ISSN

1479-8751

Department/School

Australian Maritime College

Publisher

Royal Institution of Naval Architects

Place of publication

London, UK

Rights statement

Copyright 2011 Royal Institution of Naval Architects

Repository Status

  • Restricted

Socio-economic Objectives

Domestic passenger water transport (e.g. ferries)

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    University Of Tasmania

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