Dynamics of unstable Stokes waves: A numerical and experimental study

Amin Chabchoub*, Robinson Peric, Norbert P. Hoffmann

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

Being an appropriate prototype to describe oceanic rogue waves, the Peregrine breather solution of the nonlinear Schrödinger equation is investigated numerically and experimentally to analyze the dynamics of modulationally unstable Stokes waves. The evolution of the water surface elevation is studied numerically by solving the Navier-Stokes equations using a finitevolume approach and a volume of fluid method. The comparison of the numerical results with wave tank experiments show a very good agreement. The results confirm the ability of the chosen method to model the modulation instability of Stokes waves, in particular, breather dynamics in water waves with high accuracy even up to the onset of breaking. We also investigate the sub-surface flow fields, which may be of significance for the short-term prediction of extreme wave focusing in narrowbanded sea state conditions and therefore, for ocean engineering applications.

Original languageEnglish
Title of host publication33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING
PublisherAmerican Society of Mechanical Engineers
Volume2
ISBN (Electronic)978-0-7918-4540-0
DOIs
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Ocean, Offshore and Arctic Engineering
- San Francisco, United States
Duration: 8 Jun 201413 Jun 2014
Conference number: 33

Conference

ConferenceInternational Conference on Ocean, Offshore and Arctic Engineering
Abbreviated titleOMAE
CountryUnited States
CitySan Francisco
Period08/06/201413/06/2014

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