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dc.contributor.authorRodríguez Pérez, Ivette María
dc.contributor.authorLehmkuhl Barba, Oriol
dc.contributor.authorChiva Segura, Jorge
dc.contributor.authorBorrell Pol, Ricard
dc.contributor.authorOliva Llena, Asensio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.date.accessioned2017-04-26T15:34:26Z
dc.date.issued2015
dc.identifier.citationRodriguez, I., Lehmkuhl, O., Chiva, J., Borrell, R., Oliva, A. Characteristics of the near wake region behind a cylinder at critical and super-critical Reynolds numbers. A: International Symposium on Turbulence, Heat and Mass Transfer. "Turbulence, Heat and Mass Transfer 8: proceedings of the Eight International Symposium on Turbulence, Heat and Mass Transfer: Sarajevo, Bosnia and Herzegovina, 15-18 September, 2015". Sarajevo: Begell House, 2015, p.1-12.
dc.identifier.isbn978-1-56700-428-8
dc.identifier.urihttp://hdl.handle.net/2117/103759
dc.description.abstractLarge-eddy simulations (LES) of the flow past a circular cylinder are used to investigate the characteristics of the near wake region at Reynolds numbers Re = 2.5 × 105 - 8.5 × 105. This range encompasses both the critical and super-critical regimes. Wake characteristic lengths are measured and compared between the different Reynolds numbers. It is shown that the super-critical regime is characterised by a plateau in the drag coefficient at about CD ˜ 0.22, and a quasi-stable wake which has a width of dw /D ˜ 0.4. The analysis also shows a steep decrease in the Reynolds stresses when entering the super-critical regime. Furthermore, the overall analysis shows that after the changes occurring at critical Reynolds numbers, the wake enters a regime where its dynamics is quite similar regardless of the Reynolds number.
dc.format.extent12
dc.language.isoeng
dc.publisherBegell House
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshReynolds number
dc.subject.lcshFluid dynamics--Computer simulation
dc.titleCharacteristics of the near wake region behind a cylinder at critical and super-critical Reynolds numbers
dc.typeConference report
dc.subject.lemacDinàmica de fluids -- Simulació numérica
dc.contributor.groupUniversitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group
dc.contributor.groupUniversitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.thmt-15.org/reservedarea/loginnew.php
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac16942440
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorRodriguez, I.; Lehmkuhl, O.; Chiva, J.; Borrell, R.; Oliva, A.
local.citation.contributorInternational Symposium on Turbulence, Heat and Mass Transfer
local.citation.pubplaceSarajevo
local.citation.publicationNameTurbulence, Heat and Mass Transfer 8: proceedings of the Eight International Symposium on Turbulence, Heat and Mass Transfer: Sarajevo, Bosnia and Herzegovina, 15-18 September, 2015
local.citation.startingPage1
local.citation.endingPage12


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