Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/101365
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSkote, Martinen
dc.date.accessioned2014-01-21T08:24:36Zen
dc.date.accessioned2019-12-06T20:37:15Z-
dc.date.available2014-01-21T08:24:36Zen
dc.date.available2019-12-06T20:37:15Z-
dc.date.copyright2011en
dc.date.issued2011en
dc.identifier.citationStoke, M. (2011). Turbulent boundary layer flow subject to streamwise oscillation of spanwise wall-velocity. Physics of fluids, 23, 081703-.en
dc.identifier.urihttps://hdl.handle.net/10356/101365-
dc.description.abstractDirect numerical simulations have been performed to study the effect of a stationary distribution of spanwise wall-velocity that oscillates in the streamwise direction on a turbulent boundary layer. For the first time, a spatially developing flow with this type of forcing is studied. The part of the boundary layer which flows over the alternating wall-velocity section is greatly affected with a drag reduction close to 50% which exhibits an oscillatory distribution with a wavenumber which is twice that of the imposed wall-velocity. The maximum in drag reduction occurs where the wall velocity is at its maximum (or minimum) and the minimum occurs where the wall velocity is zero. Comparisons of the mean spanwise velocity profiles with the analytical solution to the laminar Navier-Stokes equations show very good agreement. The streamwise velocity profile indicates a thickening of the viscous sub-layer when scaled with the local friction velocity and an upward shifting of the logarithmic region when scaled with the reference (unmanipulated) friction velocity. An estimation of the idealized power consumption shows that—with the present wall forcing magnitude—more energy is required for the spatial oscillation than what is saved by drag reduction.en
dc.language.isoenen
dc.relation.ispartofseriesPhysics of fluidsen
dc.rights© 2011 American Institute of Physics. This paper was published in Physics of Fluids and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.3626028]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Engineering::Mechanical engineering::Fluid mechanicsen
dc.titleTurbulent boundary layer flow subject to streamwise oscillation of spanwise wall-velocityen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.identifier.doi10.1063/1.3626028en
dc.description.versionPublished versionen
dc.identifier.rims161524en
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:MAE Journal Articles
Files in This Item:
File Description SizeFormat 
skote-pof11.pdf283.15 kBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 5

31
checked on Aug 31, 2020

WEB OF SCIENCETM
Citations

28
checked on Sep 24, 2020

Page view(s)

352
checked on Sep 24, 2020

Download(s)

225
checked on Sep 24, 2020

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.