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Aero-acoustics of flow duct singularities at low mach numbers
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-7898-8643
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. Industrial Education College, Cairo, Egypt .
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0003-4103-0129
2006 (English)In: Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference, 2006, 3708-3717 p.Conference paper, Published paper (Refereed)
Abstract [en]

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.
Keyword [en]
Aeroacoustics, Flow duct singularities, Flow generated noise, Aerodynamics, Ducts, Mathematical models, Noise generators, Number theory, Orifices, Acoustic variables control
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-155827Scopus ID: 2-s2.0-33845603954ISBN: 1563478099 (print)ISBN: 9781563478093 (print)OAI: oai:DiVA.org:kth-155827DiVA: diva2:769101
Conference
12th AIAA/CEAS Aeroacoustics Conference, 8 May 2006 through 10 May 2006, Cambridge, MA
Note

QC 20141205

Available from: 2014-12-05 Created: 2014-11-13 Last updated: 2014-12-05Bibliographically approved

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Åbom, MatsBoij, Susann

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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