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Acoustic Wave Scattering from Axisymmetric Bodies

โœ Scribed by H.S. Kim; J.S. Kim; H.J. Kang

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
300 KB
Volume
163
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Scattering from axisymmetric bodies subject to a non-axisymmetric incident wave is studied by means of the Helmholtz integral equation method. By expansion of circumferential components of the pressure and normal velocity as well as the incident wave into Fourier series, decoupled integral equations for each Fourier component are obtained. The fact that only discretization of the generator is needed offers a significant savings of computational efforts compared to that for surface discretization. The number of Fourier expansion terms needed to achieve convergence becomes larger as frequency increases, but it is still smaller than or at least comparable to the number of nodes along the generator, which makes the present formulation attractive for acoustic wave scattering or radiation problems of axisymmetric bodies.

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