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Skin-friction drag reduction using the method of spanwise mean velocity gradient
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-3251-8328
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0003-3310-0633
2015 (English)In: 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, TSFP-9 , 2015Conference paper, Published paper (Refereed)
Abstract [en]

Over the last decade wind tunnel experiments and numerical simulations have shown that steady spanwise mean velocity gradients are able to attenuate the growth of different types of boundary layer disturbances if introduced in a controlled way. In this paper some different techniques to setup the spanwise mean velocity variations are discussed and their stabilizing effect leading to transition delay are quantified. This control strategy has potential to lead to an unforeseen positive impact on the broad spectrum of industrial applications where reducing drag is a daily challenge.

Place, publisher, year, edition, pages
TSFP-9 , 2015.
Keywords [en]
Atmospheric thermodynamics, Boundary layers, Drag, Drag reduction, Skin friction, Turbulence, Wind tunnels, Broad spectrum, Control strategies, Mean velocities, Skin-friction drag, Stabilizing effects, Transition delays, Wind tunnel experiment, Shear flow
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-222962Scopus ID: 2-s2.0-85034432353ISBN: 9780000000002 OAI: oai:DiVA.org:kth-222962DiVA, id: diva2:1193350
Conference
9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, 30 June 2015 through 3 July 2015
Note

QC 20180326

Available from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-03-26Bibliographically approved

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Fransson, Jens H. M.Sattarzadeh, Sohrab Shirvan

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Fransson, Jens H. M.Downs, RobertSattarzadeh, Sohrab Shirvan
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  • apa
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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