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Contribution to the physical description of supercritical cold flow injection: The case of nitrogen

2021-10-15Journal article Open access
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dc.contributor.authorMagalhães, Leandro
dc.contributor.authorSilva, André
dc.contributor.authorBarata, Jorge M M
dc.date.accessioned2021-12-30T08:44:02Z
dc.date.available2024-01-01T01:30:59Z
dc.date.issued2021-10-15
dc.description.abstractWhile increased pressure and temperature contribute to an overall efficiency gain in the mixing of propellants and oxidizers, characteristic of conditions in the combustion chambers of liquid rocket engines, they also propel mixtures to trans- and supercritical conditions. In these conditions, the engine flow exhibits a gas jet-like behavior that may be described using an approach developed for variable density incompressible flows. The present study focuses on an approach using the Reynolds-averaged Navier–Stokes equations to evaluate the jet topology for different injectors’ conditions. Based on the so-called ’thermal breakup mechanism concept’ proposed in the literature, the axial density decay in supercritical nitrogen jets is predicted for a wide range of conditions. The results show the influence of thermal breakup, providing a better insight of the available experimental data.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.actaastro.2021.09.044pt_PT
dc.identifier.issn0094-5765
dc.identifier.urihttp://hdl.handle.net/10400.6/11522
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationCompression-based Tools for Non-Symbolic Data
dc.relation.publisherversionhttps://doi.org/10.1016/j.actaastro.2021.09.044pt_PT
dc.subjectInjector heat transferpt_PT
dc.subjectLiquid rocket enginept_PT
dc.subjectInjector heat transferpt_PT
dc.titleContribution to the physical description of supercritical cold flow injection: The case of nitrogenpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleCompression-based Tools for Non-Symbolic Data
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F136815%2F2018/PT
oaire.citation.endPage260pt_PT
oaire.citation.startPage251pt_PT
oaire.citation.titleActa Astronauticapt_PT
oaire.citation.volume190pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMagalhães
person.familyNameResende Rodrigues da Silva
person.familyNameMartins Barata
person.givenNameLeandro
person.givenNameAndré
person.givenNameJorge Manuel
person.identifier2611303
person.identifierJ-4185-2012
person.identifierhFY_5JYAAAAJ&hl
person.identifier.ciencia-id571C-5641-9D78
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.orcid0000-0002-1256-9689
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.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctSem custo de publicação. © 2021 IAA. Published by Elsevier Ltd. All rights reservedpt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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