Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas
Chen et al. (Eur. J. Mech. B/Fluids 78, pp. 88-105, 2019) recently proposed a two-dimensional continuum model for linear gravity waves propagating in ice-covered seas. It is based on a two-layer formulation where the ice cover is viewed as a porous viscoelastic medium. In the present paper, extensiv...
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ftdatacite:10.48550/arxiv.2110.09009 2023-05-15T15:08:58+02:00 Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas Xu, Boyang Guyenne, Philippe 2021 https://dx.doi.org/10.48550/arxiv.2110.09009 https://arxiv.org/abs/2110.09009 unknown arXiv Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Article CreativeWork article Preprint 2021 ftdatacite https://doi.org/10.48550/arxiv.2110.09009 2022-03-10T13:50:05Z Chen et al. (Eur. J. Mech. B/Fluids 78, pp. 88-105, 2019) recently proposed a two-dimensional continuum model for linear gravity waves propagating in ice-covered seas. It is based on a two-layer formulation where the ice cover is viewed as a porous viscoelastic medium. In the present paper, extensive tests against both laboratory experiments and field observations are performed to assess this model's ability at describing wave attenuation in various types of sea ice. The theoretical predictions are fitted to data on attenuation rate via error minimization and numerical solution of the corresponding dispersion relation. Detailed comparison with other existing viscoelastic theories is also presented. Estimates for effective rheological parameters such as shear modulus and kinematic viscosity are obtained from the fits and are found to vary significantly among the models. For this poroelastic system, the range of estimated values turns out to be relatively narrow in orders of magnitude over all the cases considered. Against field measurements from the Arctic Ocean, this model is able to reasonably reproduce the roll-over of attenuation rate as a function of frequency. Given the rather large number of physical parameters in such a formulation, a sensitivity analysis is also conducted to gauge the relevance of a representative set of them to the attenuation process. : 33 pages, 7 figures Article in Journal/Newspaper Arctic Arctic Ocean Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
spellingShingle |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Xu, Boyang Guyenne, Philippe Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
topic_facet |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
description |
Chen et al. (Eur. J. Mech. B/Fluids 78, pp. 88-105, 2019) recently proposed a two-dimensional continuum model for linear gravity waves propagating in ice-covered seas. It is based on a two-layer formulation where the ice cover is viewed as a porous viscoelastic medium. In the present paper, extensive tests against both laboratory experiments and field observations are performed to assess this model's ability at describing wave attenuation in various types of sea ice. The theoretical predictions are fitted to data on attenuation rate via error minimization and numerical solution of the corresponding dispersion relation. Detailed comparison with other existing viscoelastic theories is also presented. Estimates for effective rheological parameters such as shear modulus and kinematic viscosity are obtained from the fits and are found to vary significantly among the models. For this poroelastic system, the range of estimated values turns out to be relatively narrow in orders of magnitude over all the cases considered. Against field measurements from the Arctic Ocean, this model is able to reasonably reproduce the roll-over of attenuation rate as a function of frequency. Given the rather large number of physical parameters in such a formulation, a sensitivity analysis is also conducted to gauge the relevance of a representative set of them to the attenuation process. : 33 pages, 7 figures |
format |
Article in Journal/Newspaper |
author |
Xu, Boyang Guyenne, Philippe |
author_facet |
Xu, Boyang Guyenne, Philippe |
author_sort |
Xu, Boyang |
title |
Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
title_short |
Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
title_full |
Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
title_fullStr |
Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
title_full_unstemmed |
Assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
title_sort |
assessment of a porous viscoelastic model for wave attenuation in ice-covered seas |
publisher |
arXiv |
publishDate |
2021 |
url |
https://dx.doi.org/10.48550/arxiv.2110.09009 https://arxiv.org/abs/2110.09009 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.48550/arxiv.2110.09009 |
_version_ |
1766340220119154688 |