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Numerical investigation of self-sustained shock oscillation acoustics
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0003-0176-5358
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-9061-4174
Creo Dynamics AB.
Creo Dynamics, Sweden.
2012 (English)In: 10th International Conference on Flow-Induced Vibration and Flow-Induced Noise, FIV / [ed] Meskell & Bennett, FIV , 2012, 681-688 p.Conference paper, Published paper (Other academic)
Description
Abstract [en]

A numerical investigation of the sound resultant from a compressible flow about an 18% thick circular-arc aerofoil, for free-stream Mach numbers between M = 0.7 and M = 0.82, and a Reynolds number Re ~ 10^7, is presented in this paper. Within this range of parameters, self-sustained shock oscillations may be present on the upper and lower aerofoil surfaces. The transient flow-field was computed by detached-eddy simulation, with the solution used to quantify acoustic sources, defined by Howe's analogy, that are propagated using a wave expansion method. The results were compared with available experimental and numerical results from other studies of the same configuration.

Place, publisher, year, edition, pages
FIV , 2012. 681-688 p.
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-159523ISBN: 978-0-9548583-4-6 (print)OAI: oai:DiVA.org:kth-159523DiVA: diva2:785462
Conference
10th International Conference on Flow-Induced Vibration and Flow-Induced Noise, 3-6 July 2012, Dublin, Ireland
Note

QC 20160129

Available from: 2015-02-03 Created: 2015-02-03 Last updated: 2016-11-17Bibliographically approved

Open Access in DiVA

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Other links

http://programme.exordo.com/fiv2012/delegates/presentation/52/

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O'Reilly, Ciarán J.Efraimsson, Gunilla

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