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Direct numerical simulation of the flow around a wing section at moderate Reynolds numbers
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. KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Fluid Mechanics and Engineering Acoustics.ORCID iD: 0000-0001-6570-5499
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), Engineering Mechanics, Fluid Mechanics and Engineering Acoustics.ORCID iD: 0000-0001-9627-5903
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. Swedish Defence Research Agency, FOI, Stockholm, SE-164 90, Sweden.ORCID iD: 0000-0002-5913-5431
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2015 (English)In: Proceedings - 15th European Turbulence Conference, ETC 2015, TU Delft , 2015Conference paper, Published paper (Refereed)
Abstract [en]

A three dimensional direct numerical simulation has been performed to study the flow around the asymmetric NACA-4412 wing at a moderate chord Reynolds number (Rec = 400, 000) with an angle of attack of 5◦. The flow case under investigation poses numerous challenges for a numerical method due to the wide range of scales and complicated flow physics induced by the geometry. The mesh is optimized and well resolved to account for such varying scales in the flow. An unsteady volume force is used to trip the flow to turbulence on both sides of the wing at 10% chord. Full turbulent statistics are computed on the fly to further investigate the complicated flow features around the wing. The present simulation shows the potential of high-order methods in simulating complex external flows at moderately high Reynolds numbers. 

Place, publisher, year, edition, pages
TU Delft , 2015.
Keywords [en]
Angle of attack, Direct numerical simulation, Numerical models, Reynolds number, Turbulence, Complicated flow, External flow, High Reynolds number, High-order methods, Moderate Reynolds numbers, Turbulent statistics, Volume force, Wing section, Numerical methods
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-276541Scopus ID: 2-s2.0-85085774966OAI: oai:DiVA.org:kth-276541DiVA, id: diva2:1441721
Conference
15th European Turbulence Conference, ETC 2015, 25 August 2015 through 28 August 2015
Note

QC 20200616

Available from: 2020-06-16 Created: 2020-06-16 Last updated: 2022-06-26Bibliographically approved

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Hosseini, Seyed M.Vinuesa, RicardoSchlatter, PhilippHanifi, ArdeshirHenningson, Dan S.

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Linné Flow Center, FLOWSeRC - Swedish e-Science Research CentreMechanicsFluid Mechanics and Engineering Acoustics
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