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Acoustic receptivity simulations of flow past a flat plate with elliptic leading edge
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre.
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre. Swedish Defence Research Agency, Sweden.
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre.
2016 (English)In: Journal of Fluid Mechanics, ISSN 0022-1120, E-ISSN 1469-7645, Vol. 800, R2Article in journal (Refereed) PublishedText
Abstract [en]

We present results of numerical simulations of leading-edge acoustic receptivity for acoustic waves impinging on the leading edge of a finite-thickness flat plate. We use both compressible and incompressible flow solvers fitted with high-order high-accuracy numerical methods and independent methods of estimating the receptivity coefficient. The results show that the level of acoustic receptivity in the existing literature appears to be one order of magnitude too high. Our review of previous numerical simulations and experiments clearly identifies some contradictory trends. In the limit of an infinitely thin flat plate, our results are consistent with asymptotic theory and numerical simulations.

Place, publisher, year, edition, pages
Cambridge University Press, 2016. Vol. 800, R2
Keyword [en]
boundary layers, boundary layer receptivity, boundary layer stability
National Category
Fluid Mechanics and Acoustics Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-190550DOI: 10.1017/jfm.2016.433ISI: 000379846600002ScopusID: 2-s2.0-84978035402OAI: oai:DiVA.org:kth-190550DiVA: diva2:953431
Note

QC 20160817

Available from: 2016-08-17 Created: 2016-08-12 Last updated: 2016-08-17Bibliographically approved

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Shahriari, NimaHanifi, ArdeshirHenningson, Dan S.
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MechanicsLinné Flow Center, FLOWSeRC - Swedish e-Science Research Centre
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Fluid Mechanics and AcousticsFusion, Plasma and Space Physics

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