Aero-acoustics of flow duct singularities at low mach numbers
2006 (English)In: Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference, 2006, 3708-3717 p.Conference paper (Refereed)
This paper describes the application of an acoustic 2-port model to describe flow generated noise in ducts. An experimental procedure that enables determination of both the passive (the scattering matrix) as well as the active (source) 2-port data is described. The method is applied to investigate the aero-acoustics of an orifice plate in a duct. The passive data is compared with a simple quasi-stationary model and the active part is analyzed using a scaling law procedure, based on the assumption of a compact dipole source.
Place, publisher, year, edition, pages
2006. 3708-3717 p.
Aeroacoustics, Flow duct singularities, Flow generated noise, Aerodynamics, Ducts, Mathematical models, Noise generators, Number theory, Orifices, Acoustic variables control
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-155827ScopusID: 2-s2.0-33845603954ISBN: 1563478099ISBN: 9781563478093OAI: oai:DiVA.org:kth-155827DiVA: diva2:769101
12th AIAA/CEAS Aeroacoustics Conference, 8 May 2006 through 10 May 2006, Cambridge, MA
QC 201412052014-12-052014-11-132014-12-05Bibliographically approved