Repository logo
 
Publication

Experimental Study of a Ground Vortex

2009-05-22Journal article Embargoed access
Simple item page
dc.contributor.authorBarata, Jorge M M
dc.contributor.authorRibeiro, Samuel
dc.contributor.authorSantos, Pedro José da Costa Teixeira
dc.contributor.authorSilva, André
dc.date.accessioned2022-01-03T11:18:44Z
dc.date.embargo2060
dc.date.issued2009-05-22
dc.description.abstractLaser-Doppler measurements of the mean and turbulent components of the velocity flowfield resulting from the frontal collision of a wall jet with a boundary layer are presented and discussed, together with the visualization of the flow with direct photography and digital film imaging. The experiments were carried out for boundary-layer-to-wall- jet velocity ratios of 0.5 and 0.58. The results revealed the existence of a small counter-rotating recirculating zone located upstream (in the sense of the wall-jet flow) of the separation point, not reported before for this type of flow. This secondary vortex has an oscillating behavior observed in other ground-vortex flows, similar to that which can be observed, namely, through the bimodal histogram of the horizontal velocity (parallel to the wall) measurements, although the power spectra measurements do not exhibit any particular peaks.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.2514/1.36619pt_PT
dc.identifier.issn00218669
dc.identifier.urihttp://hdl.handle.net/10400.6/11538
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Institute of Aeronautics and Astronautics Incpt_PT
dc.relationTurbulent Structure of the Impact Zone of Two Opposed Wall Flows
dc.relation.publisherversionhttps://arc.aiaa.org/doi/10.2514/1.36619pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLaser Doppler Velocimetrypt_PT
dc.subjectWind Tunnelspt_PT
dc.subjectVortex Flowpt_PT
dc.subjectBoundary Layer Thicknesspt_PT
dc.subjectVisualization of Flowpt_PT
dc.subjectHistogramspt_PT
dc.subjectJet Flowpt_PT
dc.subjectNormal Strainpt_PT
dc.subjectVertical Takeoff and Landingpt_PT
dc.subjectAerodynamic Instabilitypt_PT
dc.titleExperimental Study of a Ground Vortexpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTurbulent Structure of the Impact Zone of Two Opposed Wall Flows
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FEME-MFE%2F64493%2F2006/PT
oaire.citation.endPage1159pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1152pt_PT
oaire.citation.titleJournal of Aircraftpt_PT
oaire.citation.volume46pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameMartins Barata
person.familyNameResende Rodrigues da Silva
person.givenNameJorge Manuel
person.givenNameAndré
person.identifierhFY_5JYAAAAJ&hl
person.identifierJ-4185-2012
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.orcid0000-0001-9014-5008
person.identifier.orcid0000-0002-4901-7140
person.identifier.scopus-author-id11439470600
person.identifier.scopus-author-id11440407500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctCopyright © 2009 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc4346556-933d-4f70-9b6d-8e1670d57be6
relation.isAuthorOfPublication908e150d-3890-457c-b5da-09c84671cb93
relation.isAuthorOfPublication.latestForDiscoveryc4346556-933d-4f70-9b6d-8e1670d57be6
relation.isProjectOfPublicationb513d9cb-22d9-43e4-81e5-615801e0b268
relation.isProjectOfPublication.latestForDiscoveryb513d9cb-22d9-43e4-81e5-615801e0b268

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
10.3.1.3..pdf
Size:
6.6 MB
Format:
Adobe Portable Document Format
Download

Collections

ICI - AeroG-LAETA | Documentos por Auto-Depósito
FE - DCA | Documentos por Auto-Depósito