kth.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Measurements and heat-flux transport modelling in a heated cylinder wake
KTH, Skolan för teknikvetenskap (SCI), Mekanik.
KTH, Skolan för teknikvetenskap (SCI), Mekanik.
KTH, Skolan för teknikvetenskap (SCI), Mekanik.ORCID-id: 0000-0002-2711-4687
1998 (Engelska)Ingår i: International Journal of Heat and Fluid Flow, ISSN 0142-727X, E-ISSN 1879-2278, nr 19, s. 556-562Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Hot-wire measurements of velocity and temperature fluctuations have been made in the self-preserving turbulent wake region of a heated cylinder. Second order statistics including Reynolds fluxes, , are determined along with relevant triple correlations appearing in the Reynolds stress and Reynolds flux transport equations. The primary aim with these measurements is to study different modelling levels for passive scalar quantities. Models for the pressure scalar-gradient correlation, appearing in the transport equation of the Reynolds fluxes, are compared to measured data. A significant improvement of the simplest model, , is achieved by including a model for the rapid term that is linear in the mean velocity gradients. The mixed timescale, , seems to be an appropriate choice for τ. Also models for the triple correlations, , are compared with the experiments.

Ort, förlag, år, upplaga, sidor
1998. nr 19, s. 556-562
Nyckelord [en]
Cylinders (shapes), Equations of motion, Mathematical models, Stress analysis, Temperature measurement, Turbulence, Velocity measurement, Wakes
Nationell ämneskategori
Strömningsmekanik och akustik
Forskningsämne
Teknisk mekanik
Identifikatorer
URN: urn:nbn:se:kth:diva-148133DOI: 10.1016/S0142-727X(98)10018-8ISI: 000075562500018Scopus ID: 2-s2.0-17344392898OAI: oai:DiVA.org:kth-148133DiVA, id: diva2:735337
Anmärkning

QC 20150320

Tillgänglig från: 2014-07-25 Skapad: 2014-07-25 Senast uppdaterad: 2022-06-23Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Person

Johansson, Arne, V.

Sök vidare i DiVA

Av författaren/redaktören
Wikström, Petra M.Hallbäck, MagnusJohansson, Arne, V.
Av organisationen
Mekanik
I samma tidskrift
International Journal of Heat and Fluid Flow
Strömningsmekanik och akustik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 176 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf