Propagation of surface waves past asymmetric elastic plates

S Kundu, R Gayen, S Gupta - Journal of Engineering Mathematics, 2021 - Springer
S Kundu, R Gayen, S Gupta
Journal of Engineering Mathematics, 2021Springer
Water wave scattering by two asymmetric thin elastic plates with arbitrary inclinations is
investigated using integral equations. The plates are submerged in finite depth water. The
assumption of Euler–Bernoulli beam model for the plates, the use of the appropriate
Euclidean transformations to handle the fifth-order plate conditions and the application of
Green's function technique allow us to obtain the expressions of normal velocities at
arbitrary points over the plates. On the other hand, an application of Green's integral …
Abstract
Water wave scattering by two asymmetric thin elastic plates with arbitrary inclinations is investigated using integral equations. The plates are submerged in finite depth water. The assumption of Euler–Bernoulli beam model for the plates, the use of the appropriate Euclidean transformations to handle the fifth-order plate conditions and the application of Green’s function technique allow us to obtain the expressions of normal velocities at arbitrary points over the plates. On the other hand, an application of Green’s integral theorem on the scattered potential and the source potential functions gives us the alternative expressions of the above-mentioned normal velocities. The comparison of these alternative forms provides two coupled integral equations involving the unknown potential differences across the plates. Kernels of the integral equations have regular as well as hypersingular parts so that the resulting integral equations are hypersingular in nature. These are solved numerically and the solutions are utilized to compute the numerical estimates for different physical quantities. Published results are recovered for different arrangements of the plates and new results are presented graphically for various parametric values.
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