The University of Southampton
University of Southampton Institutional Repository

On frequency-focusing unidirectional waves

On frequency-focusing unidirectional waves
On frequency-focusing unidirectional waves
Phase convergence to within lOin mechanically generated waves was achieved at a specified point in a wave flume by frequency focusing. Owing to the presence of nonlinear waves, the crest elevation reaches a maximum somewhat further from the waveboard, where also breaking occurs if the waves are of sufficient size. The critical amplitude for breaking was not in close agreement with previous measurements when normalized with respect to the central wave number of mechanically generated waves. It is suggested however that the limiting conditions are related to the phase speed near the focus point, where the wave group propagates with a considerable degree of coherence not present in a linear model. Predictions of a time-dependent nonlinear numerical model of Baldock and Swan (1994) are found to be in good agreement with the behavior of the crest in this region.
1053-5381
131-137
Chaplin, John R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Chaplin, John R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f

Chaplin, John R. (1996) On frequency-focusing unidirectional waves. International Journal of Offshore and Polar Engineering, 6 (2), 131-137.

Record type: Article

Abstract

Phase convergence to within lOin mechanically generated waves was achieved at a specified point in a wave flume by frequency focusing. Owing to the presence of nonlinear waves, the crest elevation reaches a maximum somewhat further from the waveboard, where also breaking occurs if the waves are of sufficient size. The critical amplitude for breaking was not in close agreement with previous measurements when normalized with respect to the central wave number of mechanically generated waves. It is suggested however that the limiting conditions are related to the phase speed near the focus point, where the wave group propagates with a considerable degree of coherence not present in a linear model. Predictions of a time-dependent nonlinear numerical model of Baldock and Swan (1994) are found to be in good agreement with the behavior of the crest in this region.

This record has no associated files available for download.

More information

Published date: June 1996

Identifiers

Local EPrints ID: 73996
URI: http://eprints.soton.ac.uk/id/eprint/73996
ISSN: 1053-5381
PURE UUID: 1dafab78-7232-455e-97c5-c914ad372c8c
ORCID for John R. Chaplin: ORCID iD orcid.org/0000-0003-2814-747X

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 22 Feb 2024 02:35

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×