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High-frequency wave diffraction by an impedance segment at oblique incidence

  • Classical Problems of Linear Acoustics and Wave Theory
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Abstract

The plane problem of high-frequency acoustic wave diffraction by a segment with impedance boundary conditions is considered. The angle of incidence of waves is assumed to be small (oblique). The paper generalizes the method previously developed by the authors for an ideal segment (with Dirichlet or Neumann boundary conditions). An expression for the directional pattern of the scattered field is derived. The optical theorem is proved for the case of the parabolic equation. The surface wave amplitude is calculated, and the results are numerically verified by the integral equation method.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, Moscow, 119991, Russia

    A. I. Korol’kov & A. V. Shanin

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  1. A. I. Korol’kov
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  2. A. V. Shanin
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Correspondence to A. I. Korol’kov.

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Original Russian Text © A.I. Korol’kov, A.V. Shanin, 2016, published in Akusticheskii Zhurnal, 2016, Vol. 62, No. 6, pp. 648–656.

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Korol’kov, A.I., Shanin, A.V. High-frequency wave diffraction by an impedance segment at oblique incidence. Acoust. Phys. 62, 651–658 (2016). https://doi.org/10.1134/S1063771016050079

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  • DOI: https://doi.org/10.1134/S1063771016050079

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