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Waves Past Porous Structures in a Two-layer Fluid

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Abstract

Havelock’s type of expansion theorems, for an integrable function having a single discontinuity point in the domain where it is defined, are utilized to derive analytical solutions for the radiation or scattering of oblique water waves by a fully extended porous barrier in both the cases of finite and infinite depths of water in two-layer fluid with constant densities. Also, complete analytical solutions are obtained for the boundary-value problems dealing with the generation or scattering of axi-symmetric water waves by a system of permeable and impermeable co-axial cylinders. Various results concerning the generation and reflection of the axisymmetric surface or interfacial waves are derived in terms of Bessel functions. The resonance conditions within the trapped region are obtained in various cases. Further, expansions for multipole-line-source oblique-wave potentials are derived for both the cases of finite and infinite depth depending on the existence of the source point in a two-layered fluid.

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Authors and Affiliations

  1. Department of Ocean Engineering and Naval Architecture, IIT, Kharagpur, 721 302, India

    T. Sahoo

  2. CMLA, ENS de Cachan, 61 Avenue du President Wilson, Cachan, 94235, Cedex, France

    S. R. Manam & T. Sahoo

Authors
  1. S. R. Manam
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  2. T. Sahoo
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Correspondence to S. R. Manam.

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Manam, S.R., Sahoo, T. Waves Past Porous Structures in a Two-layer Fluid. J Eng Math 52, 355–377 (2005). https://doi.org/10.1007/s10665-005-0190-9

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  • DOI: https://doi.org/10.1007/s10665-005-0190-9

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