Three-dimensional discrete element simulations on pressure ridge formation
This study presents the first three-dimensional discrete element method simulations on pressure ridge formation. Pressure ridges are an important feature of the sea-ice cover, as they contribute to the mechanical thickening of ice and likely limit the strength of sea ice in large scale. We validate...
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2024
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ftcopernicus:oai:publications.copernicus.org:egusphere118912 2024-09-15T18:12:23+00:00 Three-dimensional discrete element simulations on pressure ridge formation Muchow, Marek Polojärvi, Arttu 2024-05-13 application/pdf https://doi.org/10.5194/egusphere-2024-831 https://egusphere.copernicus.org/preprints/2024/egusphere-2024-831/ eng eng doi:10.5194/egusphere-2024-831 https://egusphere.copernicus.org/preprints/2024/egusphere-2024-831/ eISSN: Text 2024 ftcopernicus https://doi.org/10.5194/egusphere-2024-831 2024-08-28T05:24:15Z This study presents the first three-dimensional discrete element method simulations on pressure ridge formation. Pressure ridges are an important feature of the sea-ice cover, as they contribute to the mechanical thickening of ice and likely limit the strength of sea ice in large scale. We validate the simulations against laboratory-scale experiments, confirming their accuracy in predicting ridging forces and ridge geometries. Then we demonstrate that Cauchy-Froude scaling applies for translating laboratory-scale results on ridging to full-scale scenarios. We show that non-simultaneous failure, where an ice sheet fails at distinct locations across the ridge length, is required for an accurate representation of the ridging process. This process cannot be described by two-dimensional simulations. We also find a linear relationship between the ridging forces and the ice thickness, contrasting with earlier results in the literature obtained by two-dimensional simulations. Text Ice Sheet Sea ice Copernicus Publications: E-Journals |
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Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
This study presents the first three-dimensional discrete element method simulations on pressure ridge formation. Pressure ridges are an important feature of the sea-ice cover, as they contribute to the mechanical thickening of ice and likely limit the strength of sea ice in large scale. We validate the simulations against laboratory-scale experiments, confirming their accuracy in predicting ridging forces and ridge geometries. Then we demonstrate that Cauchy-Froude scaling applies for translating laboratory-scale results on ridging to full-scale scenarios. We show that non-simultaneous failure, where an ice sheet fails at distinct locations across the ridge length, is required for an accurate representation of the ridging process. This process cannot be described by two-dimensional simulations. We also find a linear relationship between the ridging forces and the ice thickness, contrasting with earlier results in the literature obtained by two-dimensional simulations. |
format |
Text |
author |
Muchow, Marek Polojärvi, Arttu |
spellingShingle |
Muchow, Marek Polojärvi, Arttu Three-dimensional discrete element simulations on pressure ridge formation |
author_facet |
Muchow, Marek Polojärvi, Arttu |
author_sort |
Muchow, Marek |
title |
Three-dimensional discrete element simulations on pressure ridge formation |
title_short |
Three-dimensional discrete element simulations on pressure ridge formation |
title_full |
Three-dimensional discrete element simulations on pressure ridge formation |
title_fullStr |
Three-dimensional discrete element simulations on pressure ridge formation |
title_full_unstemmed |
Three-dimensional discrete element simulations on pressure ridge formation |
title_sort |
three-dimensional discrete element simulations on pressure ridge formation |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2024-831 https://egusphere.copernicus.org/preprints/2024/egusphere-2024-831/ |
genre |
Ice Sheet Sea ice |
genre_facet |
Ice Sheet Sea ice |
op_source |
eISSN: |
op_relation |
doi:10.5194/egusphere-2024-831 https://egusphere.copernicus.org/preprints/2024/egusphere-2024-831/ |
op_doi |
https://doi.org/10.5194/egusphere-2024-831 |
_version_ |
1810449975916625920 |