Non-linear evolution of large waves in deep water - The influence of directional spreading and spectral bandwidth

Thomas A.A. Adcock, Paul H. Taylor

Research output: Chapter in Book/Report/Conference proceedingConference proceedings published in a bookpeer-review

Abstract

As large waves form in the open ocean their dynamics are modified from classic linear dispersion by non-linear physics. In this study we use a numerical model to study the evolution of isolated wave-groups in deep water. We find that the non-linear changes are rather sensitive to the initial conditions, with small changes in parameters such as directional spreading giving significantly different results. In all cases, although as aforementioned in differing degrees, we find changes to the shape of the extreme wavegroup - the wave-groups contracting in the mean wave direction, expanding laterally to increase the width of the extreme crest, and with the largest wave moving to the front of the groups. We find that significant extra elevation of the wave-group only occurs for cases which are close to uni-directional.

Original languageEnglish
Title of host publicationProceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016
EditorsAlan M. Wang, Jin S. Chung, Ted Kokkinis, Michael Muskulus
PublisherInternational Society of Offshore and Polar Engineers
Pages628-634
Number of pages7
ISBN (Electronic)9781880653883
Publication statusPublished - 2016
Externally publishedYes
Event26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016 - Rhodes, Greece
Duration: 26 Jun 20161 Jul 2016

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2016-January
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016
Country/TerritoryGreece
CityRhodes
Period26/06/161/07/16

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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