Numerical investigation of the resonance behavior of flow‐excited Helmholtz resonators

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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.
Original languageEnglish
Number of pages2
JournalProceedings in Applied Mathematics and Mechanics
Issue number1
Publication statusPublished - 2019
Event90th Annual Meeting of the International Association of Applied Mathematics and Mechanics: GAMM 2019 - Vienna, Austria
Duration: 18 Feb 201922 Feb 2019


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