An experimental study of the acoustic oscillations by flows over cavities

X. Amandolèse 1 Pascal Hémon 2 C. Regardin 1
1 IAT-CNAM - Institut AéroTechnique
2 LadHyX - Laboratoire d'hydrodynamique
Abstract : We present an experimental study of acoustic oscillations induced by an internal airflow over a shallow and a deep cavity. The Kelvin-Helmholtz instability is interacting with an acoustic mode of the cavity or of the duct, leading to a resonance which produces a very high sound level. The influence of upstream boundary layer thickness and neck thickness is studied. Some results obtained by modifying the upstream lip shape, by crenel addition, are also given. © 2004 by ASME.
Document type :
Journal articles
Complete list of metadatas
https://hal-polytechnique.archives-ouvertes.fr/hal-01024950
Contributor : Denis Roura <>
Submitted on : Thursday, July 17, 2014 - 1:09:24 PM
Last modification on : Wednesday, March 27, 2019 - 4:39:25 PM

Identifiers

Collections

CNRS | X-LADHYX | X | PARISTECH | X-DEP-MECA | CNAM

Citation

X. Amandolèse, Pascal Hémon, C. Regardin. An experimental study of the acoustic oscillations by flows over cavities. Journal of Vibration and Acoustics, American Society of Mechanical Engineers, 2004, 126 (2), pp.190-195. ⟨10.1115/1.1688761⟩. ⟨hal-01024950⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

175

Contact

Informations

CCSD