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Spectral-element simulations of variable-density turbulent flow in a plane channel
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.ORCID iD: 0000-0001-6570-5499
2017 (English)In: EPJ Web of Conferences, EDP Sciences, 2017, Vol. 159, article id 0041Conference paper (Refereed)
Abstract [en]

We perform Large-eddy simulations (LES) of the turbulent flow in a channel with isothermal heated walls with the temperature ratio equal to 2. The variable properties of the fluid are accounted for by using the low Mach number approximation. The Reynolds number based on the bulk velocity, half-width of the channel, density and dynamic viscosity near the cold wall is 6800. We study the effect of spatial resolution on the accuracy of Large-eddy simulations with dynamic Smagorinsky model. The very good agreement of LES results is shown even for the coarse meshes which is attributed to the high accuracy of the spectral method.

Place, publisher, year, edition, pages
EDP Sciences, 2017. Vol. 159, article id 0041
Series
EPJ Web of Conferences, ISSN 2101-6275 ; 159
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-218126DOI: 10.1051/epjconf/201715900041Scopus ID: 2-s2.0-85033461447OAI: oai:DiVA.org:kth-218126DiVA, id: diva2:1159747
Conference
14th All-Russian School-Conference of Young Scientists with International Participation on Actual Problems of Thermal Physics and Physical Hydrodynamics, AVTFG 2016, Novosibirsk, Russian Federation, 22 November 2016 through 25 November 2016
Note

QC 20171123

Available from: 2017-11-23 Created: 2017-11-23 Last updated: 2017-11-23Bibliographically approved

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Vinuesa, Ricardo

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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