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Acoustic scattering by a thin cylindrical screen with the Dirichlet boundary condition and the impedance boundary condition on opposite sides of the screen

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2 Author(s)
Kolybasova, V.V. ; Fac. of Phys., Moscow State Univ., Moscow ; Krutitskii, P.A.

A problem on scattering acoustic waves by a thin cylindrical screen is studied. In doing so, the Dirichlet condition is specified on one side of the screen, while the impedance boundary condition is specified on the other side of the screen. The solution of the problem is subject to the radiating condition at infinity and to the propagative Helmholtz equation. By using the potential theory the scattering problem is reduced to a system of singular integral equations with additional conditions. By regularization and subsequent transformations, this system is reduced to a vector Fredholm equation of the second kind and index zero. It is proved that the obtained vector Fredholm equation is uniquely solvable. Therefore the integral representation for a solution of the original scattering problem is obtained.

Published in:

Days on Diffraction, 2008. DD '08. Proceedings of the International Conference

Date of Conference:

3-6 June 2008