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Flexural gravity wave over a floating ice sheet near a vertical wall

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Abstract

The behavior of flexural gravity waves propagating over a semi-infinite floating ice sheet is studied under the assumptions of small amplitude linear wave theory. The vertical wall is assumed to be either fixed or harmonically oscillating with constant horizontal displacement, in which case the problem is analogous with a harmonically oscillating plane vertical wavemaker. The potential flow approach is adhered to and the higher-order mode–coupling relations are applied to determine the unknown coefficients present in the Fourier expansion formula of the potential functions. The ice sheet is modeled as a thin semi-infinite elastic beam. Three different edge conditions are applied at the finite edge of the floating ice sheet. The effects of different edge conditions, the thickness of the ice sheet and the water depth on the surface strain, the shear force along the ice sheet, the horizontal force on the vertical wall, and the flexural gravity wave profile are analyzed in detail.

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Authors and Affiliations

  1. Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001, Lisboa, Portugal

    J. Bhattacharjee & C. Guedes Soares

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  1. J. Bhattacharjee
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  2. C. Guedes Soares
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Correspondence to C. Guedes Soares.

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Bhattacharjee, J., Guedes Soares, C. Flexural gravity wave over a floating ice sheet near a vertical wall. J Eng Math 75, 29–48 (2012). https://doi.org/10.1007/s10665-011-9511-3

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  • DOI: https://doi.org/10.1007/s10665-011-9511-3

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