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Wall oscillation induced drag reduction of turbulent boundary layers
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2016 (English)In: Springer Proceedings in Physics, Springer, 2016, 161-165 p.Conference paper (Refereed)
Abstract [en]

Spanwise oscillation applied on the wall under a turbulent boundary layer flow is investigated using direct numerical simulation. The temporal wall-forcing produces considerable drag reduction over the region where oscillation occurs. The turbulence fluctuations downstream of the oscillations are presented for the first time. Simulations with identical oscillation parameters have been performed at different Reynolds numbers to investigate the effect on the drag reduction. One of the simulations replicates an earlier experiment to test the fidelity of the current simulations. In addition, we present the future work in this area with an integrated experimental and computational investigation to explore the possibility of applying travelling waves (oscillations in both time and space) as the mode of wall motion for active control of near-wall turbulence. © Springer International Publishing Switzerland 2016.

Place, publisher, year, edition, pages
Springer, 2016. 161-165 p.
Keyword [en]
Boundary layer flow, Boundary layers, Drag, Drag reduction, Oscillating flow, Reynolds number, Turbulence, Turbulent flow, Computational investigation, Current simulation, Near-wall turbulence, Oscillation parameters, Spanwise oscillation, Turbulence fluctuations, Turbulent boundary layer flow, Turbulent boundary layers, Atmospheric thermodynamics
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194606DOI: 10.1007/978-3-319-29130-7_29ScopusID: 2-s2.0-84966771383ISBN: 9783319291291 (print)OAI: oai:DiVA.org:kth-194606DiVA: diva2:1044105
Conference
6th International Conference on Progress in Turbulence, iTi 2014, 29 August 2014 through 29 August 2014
Note

Funding Details: MOE2012-T2-1-030, MOE, Ministry of Education - Singapore. QC 20161102

Available from: 2016-11-02 Created: 2016-10-31 Last updated: 2016-11-02Bibliographically approved

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Skote, MartinSchlatter, Philipp
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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