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- Extreme and rogue waves in directional wave fields
- Toffoli, A.; Bitner-Gregersen, E. M.
- It is well established that modulational instability enhances the probability of occurrence for rogue waves if the wave field is long crested, narrow banded and sufficiently steep. As a result, a substantial deviation from commonly used second order theory-based distributions can be expected. However the spreading of the wave energy over a number of directional components can notably reduce the effect of modulational instability. In order to achieve a better understanding on the influence of wave directionality and its implication for design work, numerical simulations based on the truncated potential Euler equations were used. Results show the existence of a transition region between strongly and weakly non-Gaussian statistics as short crestedness increases.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences
- Open Ocean Engineering Journal, Vol. 4 (2011), pp. 24-33
- Publication year
- FOR Code(s)
- 040503 Physical Oceanography; 091103 Ocean Engineering
- Deep water waves; Extreme waves; Modulational instability; Wave statistics
- Bentham Open
- Publisher URL
- Copyright © 2011 The authors. Articles are licensed under the terms of the Creative Commons Attribution non-commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited. The published version of the paper is reproduced here in accordance with this policy.
- Research Projects
Oceanic conditions within extreme tropical cyclones, Australian Research Council grant number LP0883888
- Full text
- Peer reviewed