Numerical Simulation of Sea Ice Dynamics with the Discrete Element Method
This paper describes a discrete element model for sea ice dynamics. An ice field is modeled as a collection of circular ice particles that interact with each other and boundary walls. Geostrophic forces act as driving forces. Contacts are non-instantaneous and multiple contacts can occur simultaneou...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.8874 http://people.clarkson.edu/projects/reushen/reu_china/Website/assets/participants_assets/Reports/Bing.pdf |
| Summary: | This paper describes a discrete element model for sea ice dynamics. An ice field is modeled as a collection of circular ice particles that interact with each other and boundary walls. Geostrophic forces act as driving forces. Contacts are non-instantaneous and multiple contacts can occur simultaneously for each particle. Contact forces are modeled as viscous-elastic forces with a friction limit for the tangential component. Ridging effects were modeled by allowing particle size to vary when contact stress exceeds a plastic stress limit. Preliminary results for the model are reported. The results include a vortex wind field test, a unidirectional wind field test for ridging effects, and simulations of sea ice in the Bohai Sea. |
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