Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory

Toffoli, A., Pitt, J. P. A., Alberello, A. ORCID: and Bennetts, L. G. (2022) Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 380 (2235). ISSN 1364-503X

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A summary is given on the utility of laboratory experiments for gaining understanding of wave attenuation in the marginal ice zone, as a complement to field observations, theory and numerical models. It is noted that most results to date are for regular incident waves, which, combined with the highly nonlinear wave–floe interaction phenomena observed and measured during experimental tests, implies that the attenuation of regular waves cannot necessarily be used to infer the attenuation of irregular waves. Two experiments are revisited in which irregular wave tests were conducted but not previously reported, one involving a single floe and the other a large number of floes, and the transmission coefficients for the irregular and regular wave tests are compared. The transmission spectra derived from the irregular wave tests agree with the regular wave data but are overpredicted by linear models due to nonlinear dissipative processes, regardless of floe configuration.

Item Type: Article
Additional Information: Funding Information: The authors acknowledge support from the Australian Research Council grant no. DP200102828. L.G.B. is supported by the Australian Research Council grant no. FT190100404. The multiple-floe experiment was funded by the Collaborative and Innovative Technology Program in Exploration and Production of Hydrocarbons, with major sponsors Total, Saipem and Doris Engineering.
Uncontrolled Keywords: water waves,wave attenuation,wave–ice interaction,mathematics(all),engineering(all),physics and astronomy(all) ,/dk/atira/pure/subjectarea/asjc/2600
Faculty \ School: Faculty of Science > School of Mathematics
UEA Research Groups: Faculty of Science > Research Groups > Fluid and Solid Mechanics
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Depositing User: LivePure Connector
Date Deposited: 26 Sep 2022 11:32
Last Modified: 03 Jan 2023 09:34
DOI: 10.1098/rsta.2021.0255

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