Acoustic Scattering of 3D Complex Systems Having Random Rough Surfaces by Scalar Integral Equations

• Autorzy: Guel-Tapia J. A. , Villa-Villa F. , Mendoza-Suárez A. , Pérez-Aguilar H.

Identyfikatory

DOI

10.1515/aoa-2016-0045

• Języki publikacji: EN

Abstrakty

EN

We propose a numerical surface integral method to study complex acoustic systems, for interior and exterior problems. The method is based on a parametric representation in terms of the arc’s lengths in curvilinear orthogonal coordinates. With this method, any geometry that involves quadric or higher order surfaces, irregular objects or even randomly rough surfaces can be considered. In order to validate the method, the modes in cubic, spherical and cylindrical cavities are calculated and compared to analytical results, which produced very good agreement. In addition, as examples, we calculated the scattering in the far field and the near field by an acoustic sphere and a cylindrical structure with a rough cross-section.

Słowa kluczowe

EN

integral equations; Helmholtz equation; acoustic scattering

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2016
• Tom: Vol. 41, No. 3
• Strony: 461--472
• Opis fizyczny: Bibliogr. 26 poz., rys., tab., wykr.

Twórcy

autor

Guel-Tapia J. A.

• Centro de Investigaciones en Óptica, Loma del Bosque 115, Lomas del Campestre, León, Guanajuato 37150, México

autor

Villa-Villa F.

• Centro de Investigaciones en Óptica, Loma del Bosque 115, Lomas del Campestre, León, Guanajuato 37150, México

autor

Mendoza-Suárez A.

• Facultad de Ciencias Físico Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Mújica S/N, Morelia, Mich. 58030, México

autor

Pérez-Aguilar H.

• Facultad de Ciencias Físico Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Mújica S/N, Morelia, Mich. 58030, México

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.