Wind effects on wave overtopping at a vertical sea defence

De Chowdhury, Swapnadip, Zhou, Jian Guo, Khait, Anatoliy, Pullen, Tim, Causon, Derek, Qian, Ling ORCID: https://orcid.org/0000-0002-9716-2342 and Mingham, Clive (2023) Wind effects on wave overtopping at a vertical sea defence. Journal of Waterway, Port, Coastal and Ocean Engineering, 149 (4). ISSN 0733-950X

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Official URL: https://doi.org/10.1061/JWPED5.WWENG-1960

Abstract

The wind effect on the efficiency of the coastal defence structure is studied in this paper. It is normally assumed that the strength of the wind impact is characterized by the impulse parameter. If it is lower than a certain value, the wind is expected to have a dominant effect on the wave overtopping rate. Contrary to the regular observation, this study reports a new regime of wave overshoot when low value of the impulse parameter does not lead to importance of wind. It is argued that the new regime appears due to the triplet instability previously studied by others. The variation of the standing wave height and the overshooting jet between the sequential cycles results in independence of the overtopping rates of the wind speed.

Item Type:	Article
Peer-reviewed:	Yes
Date Deposited:	16 Mar 2023 11:06
Publisher:	American Society of Civil Engineers
Additional Information:	This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://doi.org/10.1061/JWPED5.WWENG-1960
Divisions:	Faculties > Science and Engineering
Subject terms:	0403 Geology, 0905 Civil Engineering, 0911 Maritime Engineering, Oceanography
Data Access Statement:	All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
URI:	https://e-space.mmu.ac.uk/id/eprint/631596
DOI:	https://doi.org/10.1061/JWPED5.WWENG-1960
ISSN	0733-950X
e-ISSN	1943-5460

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