Record link: 
http://hdl.handle.net/20.500.12708/68023
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Title: 
Numerical investigation of the resonance behavior of flow-excited Helmholtz resonators
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Citation: 
Weitz, M., Schoder, S., & Kaltenbacher, M. (2019). Numerical investigation of the resonance behavior of flow-excited Helmholtz resonators. Proceedings in Applied Mathematics and Mechanics, 19(1), Article e201900033. https://doi.org/10.1002/pamm.201900033
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Publisher DOI: 
10.1002/pamm.201900033
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Publication Type: 
Article - Other Contribution
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Language: 
English
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Authors: 
Weitz, Michael 
Schoder, Stefan 
Kaltenbacher, Manfred 
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Organisational Unit: 
E325-03 - Forschungsbereich Technische Akustik 
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Journal: 
Proceedings in Applied Mathematics and Mechanics 
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Date (published): 
Nov-2019
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Number of Pages: 
2
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Publisher: 
Wiley
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Peer reviewed: 
No
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Keywords: 
CAA
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Abstract: 
Functional gaps of cars combined with the underlying volume of air represent Helmholtz resonators that are excited at the Helmholtz frequency by the turbulent flow. Based on a model that describes the spatial coherence of pressure fluctuations beneath a turbulent boundary layer, we present how to compute an extensive synthetic excitation signal without performing computational fluid dynamics (CFD) computations. Moreover, this contribution shows the capabilities of complex fluid models to better predict the resonance behavior of Helmholtz resonators.
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Science Branch: 
Physik, Astronomie
Maschinenbau
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