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Experimental and Numerical Models of Wave Reflection and Transmission by an Ice Floe

[+] Author Affiliations
Filippo Nelli

Swinburne University of Technology, Hawthorn, Australia

David M. Skene, Luke G. Bennetts

University of Adelaide, Adelaide, Australia

Micheal H. Meylan

University of Newcastle, Callaghan, Australia

Jason P. Monty, Alessandro Toffoli

University of Melbourne, Parkville, Australia

Paper No. OMAE2017-61248, pp. V008T07A015; 9 pages
doi:10.1115/OMAE2017-61248
From:
  • ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology
  • Trondheim, Norway, June 25–30, 2017
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5776-2
  • Copyright © 2017 by ASME

abstract

The marginal ice zone (MIZ) is the outer part of the sea-ice covered ocean, where ice can be found in the form of large floating chucks better known as floes. Since it is the area where the most part of the interaction between ice cover and ocean waves takes place, it requires careful modelling. However existing mathematical models, based on the traditional thin-plate theory, underestimate waves attenuation for the most energetic waves, since the energy dissipation occurring during the process is not taken into account. New laboratory experimental and direct numerical models are presented here. In the experimental model a thin plastic plate is tested under the action of incident waves with varying amplitudes and periods. The same experimental set-up was reproduced using a numerical model, which was developed by coupling a High Order Spectral Numerical Wave Tank with the Navier-Stokes solver IHFOAM. Data from the experiments and numerical models confirm that non-linear effects lead to a decrease of wave transmission.

Copyright © 2017 by ASME

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