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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| Pages | 129-134 |
| Number of pages | 6 |
| State | Published - 2009 |
| Externally published | Yes |
| Event | 9th International Conference on Theoretical and Computational Acoustics, ICTCA 2009 - Dresden, Germany Duration: 7 Sep 2009 → 11 Sep 2009 |
Conference
| Conference | 9th International Conference on Theoretical and Computational Acoustics, ICTCA 2009 |
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| Country/Territory | Germany |
| City | Dresden |
| Period | 7/09/09 → 11/09/09 |