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Water wave scattering by an elastic thin vertical plate submerged in finite depth water

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Abstract

The problem of water wave scattering by a thin vertical elastic plate submerged in uniform finite depth water is investigated here. The boundary condition on the elastic plate is derived from the Bernoulli-Euler equation of motion satisfied by the plate. Using the Green’s function technique, from this boundary condition, the normal velocity of the plate is expressed in terms of the difference between the velocity potentials (unknown) across the plate. The two ends of the plate are either clamped or free. The reflection and transmission coefficients are obtained in terms of the integrals’ involving combinations of the unknown velocity potential on the two sides of the plate, which satisfy three simultaneous integral equations and are solved numerically. These coefficients are computed numerically for various values of different parameters and depicted graphically against the wave number in a number of figures.

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Correspondence to B. N. Mandal.

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Rumpa Chakraborty was born in 1985. She is working as a Senior Research Fellow at the Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata, India. Her current research interests include water wave problems.

B.N. Mandal was born in 1943. He is a NASIPlatinum Jubilee Senior Scientist at the Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata, India. His current research interests include water wave problems and associated mathematical techniques, Integral equations, Integral expansions, etc.

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Chakraborty, R., Mandal, B.N. Water wave scattering by an elastic thin vertical plate submerged in finite depth water. J. Marine. Sci. Appl. 12, 393–399 (2013). https://doi.org/10.1007/s11804-013-1209-7

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  • DOI: https://doi.org/10.1007/s11804-013-1209-7

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