Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Simulations of heat transfer in a boundary layer subject to free-stream turbulence
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0001-9627-5903
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0001-7864-3071
2010 (English)In: Journal of turbulence, ISSN 1468-5248, Vol. 11, no 45, 1-33 p.Article in journal (Refereed) Published
Abstract [en]

The present study investigates the effects of ambient free-stream turbulence (FST) on the momentum and heat transfer in a spatially developing, turbulent flat-plate boundary layer via large-eddy simulations using the ADM-RT model. Due to a local turbulence intensity Tu of 7% in the free stream, the skin-friction coefficient cf and Stanton number St are substantially elevated up to 25% and 32%, respectively, in the fully turbulent region (Reτ=300). This observation is in qualitative agreement with earlier experimental studies. Moreover, the Reynolds analogy factor is found to increase with the FST intensity Tu. The depression of both mean velocity and temperature profiles in the wake region due to FST is observed. In addition, the pre-multiplied spanwise spectra show that the outer peak residing in the logarithmic region in the case without FST is replaced by a new peak located near the boundary layer edge with a spanwise scale of about 3-4δ95. It is suggested that these large-scale events and their imprint throughout the boundary layer cause the elevation of both the skin friction and heat transfer on the solid surface.

Place, publisher, year, edition, pages
2010. Vol. 11, no 45, 1-33 p.
Keyword [en]
free-stream turbulence (FST), large-eddy simulation (LES), heat transfer, turbulent boundary layer
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-25546DOI: 10.1080/14685248.2010.521505ISI: 000283368600001OAI: oai:DiVA.org:kth-25546DiVA: diva2:359105
Note
QC 20101026Available from: 2010-10-26 Created: 2010-10-26 Last updated: 2011-09-26Bibliographically approved
In thesis
1. Simulations of turbulent boundary layers with heat transfer
Open this publication in new window or tab >>Simulations of turbulent boundary layers with heat transfer
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. vii, 36 p.
Series
Trita-MEK, ISSN 0348-467X ; 2009:14
Keyword
DNS, LES, Turbulent boundary layer, passive scalar, large-scale structures, massively parallel simulations
Identifiers
urn:nbn:se:kth:diva-11320 (URN)978-91-7415-443-6 (ISBN)
Presentation
2009-10-22, Sal E3, OB 14, Stockholm, Sweden, 15:15 (English)
Opponent
Supervisors
Available from: 2009-10-26 Created: 2009-10-23 Last updated: 2010-10-26Bibliographically approved
2. Direct and Large-Eddy Simulations of Turbulent  Boundary Layers with Heat Transfer
Open this publication in new window or tab >>Direct and Large-Eddy Simulations of Turbulent  Boundary Layers with Heat Transfer
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. xv, 83 p.
Series
Trita-MEK, ISSN 0348-467X ; 2011:11
Keyword
direct numerical simulation (DNS), large-eddy simulation (LES), turbulent boundary layer, passive scalar, coherent structures, free-stream t urbulence (FST), structure ensemble dynamics (SED), massively parallel simulations
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-41156 (URN)978-91-7501-101-1 (ISBN)
Public defence
2011-10-10, F3 Sal, Lindstedsv. 26, KTH, Stockholm, 10:15 (English)
Opponent
Supervisors
Funder
Swedish e‐Science Research Center
Note
QC 20110926Available from: 2011-09-26 Created: 2011-09-23 Last updated: 2012-05-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Schlatter, PhilipHenningson, Dan S.

Search in DiVA

By author/editor
Li, QiangSchlatter, PhilipHenningson, Dan S.
By organisation
MechanicsLinné Flow Center, FLOW
In the same journal
Journal of turbulence
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 71 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf