Numerical Simulation of Solitary-Wave Scattering and Damping in Fragmented Sea Ice
A numerical model for direct phase-resolved simulation of nonlinear ocean waves propagating through fragmented sea ice is proposed. In view are applications to wave propagation and attenuation across the marginal ice zone. This model solves the full equations for nonlinear potential flow coupled wit...
| Main Authors: | , |
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| Format: | Book Part |
| Language: | English |
| Published: |
ISOPE
2017
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| Subjects: | |
| Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/63008/ https://ueaeprints.uea.ac.uk/id/eprint/63008/1/2017_TPC_0903_Guyenne.pdf |
| Summary: | A numerical model for direct phase-resolved simulation of nonlinear ocean waves propagating through fragmented sea ice is proposed. In view are applications to wave propagation and attenuation across the marginal ice zone. This model solves the full equations for nonlinear potential flow coupled with a nonlinear thin-plate formulation for the ice cover. Distributions of ice floes can be directly specified in the physical domain by allowing the coefficient of flexural rigidity to be spatially variable. Dissipation due to ice viscosity is also taken into account by including diffusive terms in the governing equations. Two-dimensional simulations are performed to examine the attenuation of solitary waves by scattering and damping through an irregular array of ice floes. Wave attenuation over time is quantified for various floe configurations. |
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