TY - JOUR
T1 - Numerical investigation of the resonance behavior of flow‐excited Helmholtz resonators
AU - Weitz, Michael
AU - Schoder, Stefan
AU - Kaltenbacher, Manfred
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - https://onlinelibrary.wiley.com/doi/epdf/10.1002/pamm.201900033
U2 - 10.1002/pamm.201900033
DO - 10.1002/pamm.201900033
M3 - Article
JO - Proceedings in Applied Mathematics and Mechanics
JF - Proceedings in Applied Mathematics and Mechanics
SN - 1617-7061
ER -