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Finite element formulations for acoustical radiation

Finite element formulations for acoustical radiation
Finite element formulations for acoustical radiation
Finite and infinite element techniques are applied to linear acoustical problems involving infinite anechoic boundaries. Theory is presented for a simple one dimensional model based on Webster's horn equation. Results are then presented both for the one dimensional model and for two axisymmetric test cases. Comparisons with exact solutions indicate that both the infinite element and wave envelope schemes are effective in correctly predicting the near field. The wave envelope scheme is also shown to be capable of resolving the far field radiation pattern.
0022-460X
47-64
Astley, R.J.
cb7fed9f-a96a-4b58-8939-6db1010f9893
Eversman, W.
a48e519b-a759-4b3b-b81f-b987d216d027
Astley, R.J.
cb7fed9f-a96a-4b58-8939-6db1010f9893
Eversman, W.
a48e519b-a759-4b3b-b81f-b987d216d027

Astley, R.J. and Eversman, W. (1983) Finite element formulations for acoustical radiation. Journal of Sound and Vibration, 88 (1), 47-64. (doi:10.1016/0022-460X(83)90678-8).

Record type: Article

Abstract

Finite and infinite element techniques are applied to linear acoustical problems involving infinite anechoic boundaries. Theory is presented for a simple one dimensional model based on Webster's horn equation. Results are then presented both for the one dimensional model and for two axisymmetric test cases. Comparisons with exact solutions indicate that both the infinite element and wave envelope schemes are effective in correctly predicting the near field. The wave envelope scheme is also shown to be capable of resolving the far field radiation pattern.

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Published date: 8 May 1983

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Local EPrints ID: 166465
URI: http://eprints.soton.ac.uk/id/eprint/166465
ISSN: 0022-460X
PURE UUID: caef266b-c81c-4ace-b26c-87a4a0f5a579

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Date deposited: 29 Oct 2010 10:31
Last modified: 14 Mar 2024 02:13

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Contributors

Author: R.J. Astley
Author: W. Eversman

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