Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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
Characterization of turbulent coherent structures in square duct flow
KTH, Skolan för teknikvetenskap (SCI), Mekanik. KTH, Centra, SeRC - Swedish e-Science Research Centre. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.
KTH, Skolan för teknikvetenskap (SCI), Mekanik. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW. KTH, Centra, SeRC - Swedish e-Science Research Centre.ORCID-id: 0000-0001-6570-5499
KTH, Skolan för teknikvetenskap (SCI), Mekanik. KTH, Centra, SeRC - Swedish e-Science Research Centre. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.
2018 (Engelska)Ingår i: Journal of Physics: Conference Series, Institute of Physics Publishing (IOPP), 2018, Vol. 1001, nr 1Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This work is aimed at a first characterization of coherent structures in turbulent square duct flows. Coherent structures are defined as connected components in the domain identified as places where a quantity of interest (such as Reynolds stress or vorticity) is larger than a prescribed non-uniform threshold. Firstly, we qualitatively discuss how a percolation analysis can be used to assess the effectiveness of the threshold function, and how it can be affected by statistical uncertainty. Secondly, various physical quantities that are expected to play an important role in the dynamics of the secondary flow of Prandtl's second kind are studied. Furthermore, a characterization of intense Reynolds-stress events in square duct flow, together with a comparison of their shape for analogous events in channel flow at the same Reynolds number, is presented.

Ort, förlag, år, upplaga, sidor
Institute of Physics Publishing (IOPP), 2018. Vol. 1001, nr 1
Serie
Journal of Physics: Conference Series, ISSN 1742-6588 ; 1001
Nationell ämneskategori
Strömningsmekanik och akustik
Identifikatorer
URN: urn:nbn:se:kth:diva-238245DOI: 10.1088/1742-6596/1001/1/012008ISI: 000454926900008Scopus ID: 2-s2.0-85046084236OAI: oai:DiVA.org:kth-238245DiVA, id: diva2:1263768
Konferens
3rd Madrid Summer School on Turbulence, School of Aeronautics of the Universidad Politecnica de MadridMadrid, Spain, 29 May 2017 through 30 June 2017
Forskningsfinansiär
EU, Europeiska forskningsrådetVetenskapsrådetStiftelsen för strategisk forskning (SSF), BD15-0082Knut och Alice Wallenbergs Stiftelse, BD15-0082Swedish e‐Science Research Center
Anmärkning

QC 20181116

Tillgänglig från: 2018-11-16 Skapad: 2018-11-16 Senast uppdaterad: 2019-01-18Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Personposter BETA

Vinuesa, Ricardo

Sök vidare i DiVA

Av författaren/redaktören
Atzori, MarcoVinuesa, RicardoSchlatter, Philipp
Av organisationen
MekanikSeRC - Swedish e-Science Research CentreLinné Flow Center, FLOW
Strömningsmekanik och akustik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 246 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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