Journal article
The influence of directional spreading on rogue waves triggered by abrupt depth transitions
- Abstract:
- An increased number of rogue waves, relative to standard distributions, can be induced by unidirectional waves passing over abrupt decreases in water depth. We investigate this phenomenon in a more general setting of multidirectional waves. We examine the influence of the directionality on the occurrence probability of rogue waves using laboratory experiments and fully nonlinear potential flow simulations. Based on the analysis of the statistics of random waves, we find that directional spreading reduces the formation probability of rogue waves relative to unidirectional seas. Nevertheless, for typical values of directional spreading in the ocean , our numerical results suggest that there is still a significant enhancement to the number of rogue waves just beyond the top of a depth discontinuity.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 981.4KB, Terms of use)
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- Publisher copy:
- 10.1017/jfm.2023.737
Authors
- Publisher:
- Cambridge University Press
- Journal:
- Journal of Fluid Mechanics More from this journal
- Volume:
- 972
- Article number:
- R2
- Publication date:
- 2023-09-29
- Acceptance date:
- 2023-09-03
- DOI:
- EISSN:
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1469-7645
- ISSN:
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0022-1120
- Language:
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English
- Keywords:
- Pubs id:
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1546571
- Local pid:
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pubs:1546571
- Deposit date:
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2023-10-23
Terms of use
- Copyright holder:
- Tang et al.
- Copyright date:
- 2023
- Rights statement:
- © The Author(s), 2023. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
- Notes:
- This research was funded in whole or in part by EPSRC grant number EP/V050079/1. For the purpose of Open Access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript (AAM) version arising from this submission.
- Licence:
- CC Attribution (CC BY)
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