Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Investigation of a jet-noise-shielding methodology
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Aeroacoustics.ORCID iD: 0000-0003-0176-5358
Trinity College, Dublin, Ireland.
2015 (English)In: AIAA Journal, ISSN 0001-1452, E-ISSN 1533-385X, Vol. 53, no 11, 3286-3296 p.Article in journal (Refereed) Published
Abstract [en]

Ongoing research toward the reduction of environmental noise from aircraft is investigating the possible shielding of engine-noise sources by novel airframe configurations. To assess the noise-reduction benefits attainable from such configurations, it is necessary to develop appropriate acoustic evaluation tools. In this paper, a jet-noise-shielding- prediction methodology is described. The Tam–Auriault (“Jet Mixing Noise from Fine-Scale Turbulence,” AIAA Journal, Vol. 37, No. 2, 1999, pp. 145–153) jet-noise model with a Reynolds-averaged Navier–Stokes solution input, together with a Fresnel–Kirchhoff diffraction method (Fundamentals of Physical Acoustics, Wiley-Interscience, New York, 2000, pp. 472–494), is used to make isolated and shielded far-field jet-noise predictions. This methodology is employed as a sensitivity-analysis tool to establish the relative importance of the source location, spatial extent, and directivity in jet-noise-shielding predictions. Predictions have been made for a shielded single-stream Mach 0.9 jet, and compared with experimental data. Good qualitative agreement is observed, and the disagreement in the shielding levels is most likely due to underestimation of the source axial extent by the jet-noise model. 

Place, publisher, year, edition, pages
American Institute of Aeronautics and Astronautics, 2015. Vol. 53, no 11, 3286-3296 p.
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-92296DOI: 10.2514/1.J053837ISI: 000364234900011Scopus ID: 2-s2.0-84945544699OAI: oai:DiVA.org:kth-92296DiVA: diva2:513175
Note

QC 20151130

Available from: 2012-03-30 Created: 2012-03-30 Last updated: 2017-12-07Bibliographically approved

Open Access in DiVA

fulltext(600 kB)117 downloads
File information
File name FULLTEXT01.pdfFile size 600 kBChecksum SHA-512
cf8c14b996b7cf9babcc5f1ac8d42bf26d36171781cd2fac2216faf43c1c034ea5168ddeb95ea4061d0f4e329652c3ee4178749ac09e370bab776db0da972e46
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records BETA

O'Reilly, Ciarán J.

Search in DiVA

By author/editor
O'Reilly, Ciarán J.
By organisation
Aeroacoustics
In the same journal
AIAA Journal
Fluid Mechanics and Acoustics

Search outside of DiVA

GoogleGoogle Scholar
Total: 117 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 1203 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf