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Generation and scattering of acoustic modes in ductswith flow
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-7898-8643
2014 (English)In: 20th AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics, 2014Conference paper, Published paper (Refereed)
Abstract [en]

The generation and scattering behaviour of fluid machines such as pumps or fans in con-nected duct or pipe systems is of great interest to minimize disturbing and harmful soundemission, for instance of air conditioning systems. One approach to describe the sound-fieldcreated by a fluid machine or in a duct component is to apply a linear multi-port modelthat includes direction-depending transmission and reflection coefficients for the presentwave-modes and the sound generation. Once this characteristic data are determined, thesound-field can be calculated for arbitrary acoustic loads. This paper describes an approachto measure the scattering of the first 8 modes in a duct system with flow, using externalloudspeakers as sound sources.

Place, publisher, year, edition, pages
American Institute of Aeronautics and Astronautics, 2014.
Keyword [en]
multi-port, acoustic, aiaa, air-conditioner
National Category
Mechanical Engineering
Research subject
Vehicle and Maritime Engineering
Identifiers
URN: urn:nbn:se:kth:diva-160820DOI: 10.2514/6.2014-3115Scopus ID: 2-s2.0-84903878849OAI: oai:DiVA.org:kth-160820DiVA: diva2:791256
Conference
20th AIAA/CEAS Aeroacoustics Conference, AIAA Aviation, 16-20 June 2014, Atlanta, GA
Projects
IdealVent
Funder
EU, FP7, Seventh Framework Programme
Note

Qc 20150302

Available from: 2015-02-27 Created: 2015-02-27 Last updated: 2015-03-02Bibliographically approved

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Mats, Abom

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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NB
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  • Other locale
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Output format
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