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Modelling of transcritical and supercritical nitrogen jets

2017-06Journal article Open access
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dc.contributor.authorAntunes, Eduardo Luís Santos Farias
dc.contributor.authorSilva, A. R. R.
dc.contributor.authorBarata, Jorge M M
dc.date.accessioned2018-05-10T08:39:08Z
dc.date.available2018-05-10T08:39:08Z
dc.date.issued2017-06
dc.description.abstractThe present paper addresses the modelling of fuel injection at conditions of high pressure and temperature which occur in a variety of internal combustion engines such as liquid fuel rocket engines, gas turbines, and modern diesel engines. For this investigation a cryogenic nitrogen jet ranging from transcritical to supercritical conditions injected into a chamber at supercritical conditions was modelled. Previously a variable density approach, originally conceived for gaseous turbulent isothermal jets, imploying the Favre averaged Navier-Stokes equations together with a “k-ε” turbulence model, and using Amagats law for the determination of density was applied. This approach allows a good agreement with experiments mainly at supercritical injection conditions. However, some departure from experimental data was found at transcritical injection conditions. The present approach adds real fluid thermodynamics to the previous approach, and the effects of heat transfer. The results still show some disagreement at supercritical conditions mainly in the determination of the potential core length but significantly improve the prediction of the jet spreading angle at transcritical injection conditions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationANTUNES, E., SILVA, A., BARATA, J. Modeling of transcritical and supercritical nitrogen jets. Combustion Engines. 2017, 169(2), 125-132. DOI: 10.19206/CE-2017-222pt_PT
dc.identifier.doi10.19206/CE-2017-222pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/4750
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPTNSSpt_PT
dc.relation.ispartofseries;CE-2017-222
dc.relation.publisherversionhttp://www.combustion-engines.eu/en/numbers/54/772pt_PT
dc.subjectFuel injectionpt_PT
dc.subjectJetspt_PT
dc.subjectCritical pointpt_PT
dc.subjectSupercritical flowspt_PT
dc.subjectCryogenicspt_PT
dc.titleModelling of transcritical and supercritical nitrogen jetspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEMS%2F50022%2F2013/PT
oaire.citation.endPage132pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage125pt_PT
oaire.citation.titleCombustion Enginespt_PT
oaire.citation.volume169pt_PT
oaire.fundingStream5876
person.familyNameResende Rodrigues da Silva
person.familyNameMartins Barata
person.givenNameAndré
person.givenNameJorge Manuel
person.identifierJ-4185-2012
person.identifierhFY_5JYAAAAJ&hl
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.orcid0000-0002-4901-7140
person.identifier.orcid0000-0001-9014-5008
person.identifier.scopus-author-id11440407500
person.identifier.scopus-author-id11439470600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication908e150d-3890-457c-b5da-09c84671cb93
relation.isAuthorOfPublicationc4346556-933d-4f70-9b6d-8e1670d57be6
relation.isAuthorOfPublication.latestForDiscovery908e150d-3890-457c-b5da-09c84671cb93
relation.isProjectOfPublicationc1eae78f-3c5c-4b94-92c2-54af6896833d
relation.isProjectOfPublication.latestForDiscoveryc1eae78f-3c5c-4b94-92c2-54af6896833d

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