Numerical study of solitary waves under continuous or fragmented ice plates
48 mins 6 secs,
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About this item
Description: |
Parau, E
Tuesday 8th August 2017 - 10:00 to 11:00 |
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Created: | 2017-08-09 13:05 |
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Collection: | Nonlinear Water Waves |
Publisher: | Isaac Newton Institute |
Copyright: | Parau, E |
Language: | eng (English) |
Distribution: | World (downloadable) |
Explicit content: | No |
Aspect Ratio: | 16:9 |
Screencast: | No |
Bumper: | UCS Default |
Trailer: | UCS Default |
Abstract: | Nonlinear hydroelastic waves travelling at the surface of an ideal fluid covered by a thin ice plate are presented. The continuous ice-plate model is based on the special Cosserat theory of hyperelastic shells satisfying Kirchoff's hypothesis. Two-dimensional solitary waves are computed using boundary integral methods and their evolution in time and stability is analysed using a pseudospectral method based on FFT and in the expansion of the Dirichlet-Neuman operator. Extensions of this problem including internal waves and three-dimensional waves will be considered.
When the ice-plate is fragmented, a new model is used by allowing the coefficient of the flexural rigidity to vary spatially. The attenuation of solitary waves is studied by using two-dimensional simulations. |
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iPod Video * | 480x270 | 521.87 kbits/sec | 183.85 MB | View | Download | |
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