A numerical model for point source scattering from an impedance cylinder placed normal to an impedance plane

Michelle E. Swearingen; David C. Swanson

doi:10.3813/AAA.918534

A numerical model for point source scattering from an impedance cylinder placed normal to an impedance plane

Michelle E. Swearingen
, David C. Swanson

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A semi-analytic model that couples acoustic propagation over an impedance plane and scattering from an semiinfinite right cylinder with finite impedance placed normal to the impedance plane is developed mathematically and verified with benchmark cases. Model output is found to be sensitive to large changes in temperature. Large changes in non-rigid ground and cylinder impedances also significantly impact results. The model is only valid near the impedance boundary. Minimum numbers of integration points and summation terms are determined.

Original language	English (US)
Pages (from-to)	523-533
Number of pages	11
Journal	Acta Acustica united with Acustica
Volume	98
Issue number	4
DOIs	https://doi.org/10.3813/AAA.918534
State	Published - Jul 2012

All Science Journal Classification (ASJC) codes

Music
Acoustics and Ultrasonics

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10.3813/AAA.918534

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abstract = "A semi-analytic model that couples acoustic propagation over an impedance plane and scattering from an semiinfinite right cylinder with finite impedance placed normal to the impedance plane is developed mathematically and verified with benchmark cases. Model output is found to be sensitive to large changes in temperature. Large changes in non-rigid ground and cylinder impedances also significantly impact results. The model is only valid near the impedance boundary. Minimum numbers of integration points and summation terms are determined.",

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AB - A semi-analytic model that couples acoustic propagation over an impedance plane and scattering from an semiinfinite right cylinder with finite impedance placed normal to the impedance plane is developed mathematically and verified with benchmark cases. Model output is found to be sensitive to large changes in temperature. Large changes in non-rigid ground and cylinder impedances also significantly impact results. The model is only valid near the impedance boundary. Minimum numbers of integration points and summation terms are determined.

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A numerical model for point source scattering from an impedance cylinder placed normal to an impedance plane

Abstract

All Science Journal Classification (ASJC) codes

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