Abstract
The numerical simulation of the sound spectrum and the propagation of the acoustic noise inside and around a three-dimensional recorder model is presented. The fluid inside and close to the recorder is meshed by Lagrangian tetrahedral finite elements. Complex conjugated Astley-Leis infinite elements are used to optain results in the far field of the recorder [1,2]. For the application of these infinite elements the finite element domain has to be meshed either in a spherical or an ellipsoidal shape. Specific characteristics of both shapes regarding the recorder will be shown. Results of the modal analysis of the fluid for different tones will be presented as well as an example of the source problem.
| Original language | English |
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| Title of host publication | roceedings of the 9th International Conference on Theoretical and Computational Acoustics : Dresden, Germany, 7 - 11 September 2009 |
| Editors | Steffen Marburg |
| Place of Publication | Munich |
| Publisher | Univ. der Bundeswehr |
| Pages | 129-134 |
| Number of pages | 6 |
| Publication status | Published - Sept 2009 |
| Event | 9th International Conference on Theoretical and Computational Acoustics, ICTCA - 2009 - Dresden, Germany Duration: 7 Sept 2009 → 11 Sept 2009 |
Other
| Other | 9th International Conference on Theoretical and Computational Acoustics, ICTCA - 2009 |
|---|---|
| Country/Territory | Germany |
| City | Dresden |
| Period | 7/09/09 → 11/09/09 |