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Acoustic scattering by an open‐ended hard circular tube of finite length

1992
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Journal of the Acoustical Society of America
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A boundary value problem for the time-harmonic acoustic field scattered by an open-ended circular tube of finite length is solved by a Galerkin method. The Neumann boundary condition applies on the infinitesimally thin, cylindrical surface of the acoustically hard scatterer. The circular symmetry of this surface of revolution preserves the orthogonality of the azimuthal modes of the obliquely incident plane wave, which serve as the basis for a trigonometric Fourier series in the • coordinate.

doi:10.1121/1.404183
fatcat:l5ruhfszt5d4xmewkm4xagfoxi