A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction
The marginal ice zone is a highly dynamical region where sea ice and ocean waves interact. Large-scale sea ice models only compute domain-averaged responses. As the majority of the marginal ice zone consists of mobile ice floes surrounded by grease ice, finer-scale modelling is needed to resolve var...
| Published in: | Fluids |
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| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-04-01
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| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-5521/6/5/176 |
| _version_ | 1850424429535821824 |
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| author | Rutger Marquart Alfred Bogaers Sebastian Skatulla Alberto Alberello Alessandro Toffoli Carina Schwarz Marcello Vichi |
| author_facet | Rutger Marquart Alfred Bogaers Sebastian Skatulla Alberto Alberello Alessandro Toffoli Carina Schwarz Marcello Vichi |
| author_sort | Rutger Marquart |
| collection | DOAJ |
| container_title | Fluids |
| description | The marginal ice zone is a highly dynamical region where sea ice and ocean waves interact. Large-scale sea ice models only compute domain-averaged responses. As the majority of the marginal ice zone consists of mobile ice floes surrounded by grease ice, finer-scale modelling is needed to resolve variations of its mechanical properties, wave-induced pressure gradients and drag forces acting on the ice floes. A novel computational fluid dynamics approach is presented that considers the heterogeneous sea ice material composition and accounts for the wave-ice interaction dynamics. Results show, after comparing three realistic sea ice layouts with similar concentration and floe diameter, that the discrepancy between the domain-averaged temporal stress and strain rate evolutions increases for decreasing wave period. Furthermore, strain rate and viscosity are mostly affected by the variability of ice floe shape and diameter. |
| format | Article |
| id | doaj-art-e4a8775f2b95428fa29bcd771c49c607 |
| institution | Directory of Open Access Journals |
| issn | 2311-5521 |
| language | English |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-e4a8775f2b95428fa29bcd771c49c6072025-08-19T22:41:17ZengMDPI AGFluids2311-55212021-04-016517610.3390/fluids6050176A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice InteractionRutger Marquart0Alfred Bogaers1Sebastian Skatulla2Alberto Alberello3Alessandro Toffoli4Carina Schwarz5Marcello Vichi6Department of Civil Engineering, University of Cape Town, Cape Town 7700, South AfricaEx Mente Technologies, Pretoria 0081, South AfricaDepartment of Civil Engineering, University of Cape Town, Cape Town 7700, South AfricaGraduate School of Frontier Sciences, The University of Tokyo, Tokyo 113-8654, JapanDepartment of Infrastructure Engineering, University of Melbourne, Parkville, VIC 3010, AustraliaInstitute of Mechanics, University of Duisburg-Essen, 47057 Duisburg, GermanyMarine and Antarctic Research Centre for Innovation and Sustainability, University of Cape Town, Cape Town 7700, South AfricaThe marginal ice zone is a highly dynamical region where sea ice and ocean waves interact. Large-scale sea ice models only compute domain-averaged responses. As the majority of the marginal ice zone consists of mobile ice floes surrounded by grease ice, finer-scale modelling is needed to resolve variations of its mechanical properties, wave-induced pressure gradients and drag forces acting on the ice floes. A novel computational fluid dynamics approach is presented that considers the heterogeneous sea ice material composition and accounts for the wave-ice interaction dynamics. Results show, after comparing three realistic sea ice layouts with similar concentration and floe diameter, that the discrepancy between the domain-averaged temporal stress and strain rate evolutions increases for decreasing wave period. Furthermore, strain rate and viscosity are mostly affected by the variability of ice floe shape and diameter.https://www.mdpi.com/2311-5521/6/5/176sea ice dynamicswave-ice interactionmarginal ice zonesea ice rheologypancake icegrease ice |
| spellingShingle | Rutger Marquart Alfred Bogaers Sebastian Skatulla Alberto Alberello Alessandro Toffoli Carina Schwarz Marcello Vichi A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction sea ice dynamics wave-ice interaction marginal ice zone sea ice rheology pancake ice grease ice |
| title | A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction |
| title_full | A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction |
| title_fullStr | A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction |
| title_full_unstemmed | A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction |
| title_short | A Computational Fluid Dynamics Model for the Small-Scale Dynamics of Wave, Ice Floe and Interstitial Grease Ice Interaction |
| title_sort | computational fluid dynamics model for the small scale dynamics of wave ice floe and interstitial grease ice interaction |
| topic | sea ice dynamics wave-ice interaction marginal ice zone sea ice rheology pancake ice grease ice |
| url | https://www.mdpi.com/2311-5521/6/5/176 |
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