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Two-dimensional radiation and scattering at short wave length (1990)

Park, J. M. ; Yoon, W. S. ; Eversman, W.

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Publication Date: 2011-08-19

Description: In the present investigation of radiation and scattering by objects when the wavelengths are much smaller than the characteristic dimensions of the radiator or scatterer, the boundary-element method is used to obtain computational accuracy and efficiency. The approach employed for wavelengths less than 5 percent of object characteristic dimensions involves cubic elements, approximate polynomial and asymptotic evaluations of the fundamental solution, and a tailoring of the order of the Gaussian quadrature according to the local demands dictated by the distance between sending and receiving points. The method addresses the propagation of low-frequency sound over large terrain features.

Keywords: ACOUSTICS

Type: ASME, Transactions, Journal of Vibration and Acoustics (ISSN 0739-3717); 112; 384-391

Format: text

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