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Numerical Study of Cryogenic Jets Under Supercritical Conditions

2003-01Journal article Embargoed access
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dc.contributor.authorBarata, Jorge M M
dc.contributor.authorGokalp, Iskender
dc.contributor.authorSilva, André
dc.date.accessioned2022-01-03T11:24:25Z
dc.date.embargo2060-01
dc.date.issued2003-01
dc.description.abstractThe present work is devoted to the study of cryogenic nitrogen jets in sub- and supercritical conditions. A general trend to operate under increasingly higher combustor pressures is observed in rockets, gas turbines, and diesel engines, primarily as a result of enhanced effects on thrust, power, or efficiency. In these conditions the injected fluid(s) can experience ambient pressures exceeding the critical pressure(s) of the propellants, and recent experimental work of Chehroudi et al. showed a quantitative similarity to gas-jet-like behavior (Chehroudi, B., Conn, R., and Talley, D.. "Spray/Gas Behaviour of Cryogenic Fluids under Sub- and Supercritical Conditions," Paper. July 2000; Chehroudi. B., Cohn, R., and Talley, D.. "Initial Growth Rate and Visual Characteristics of a Round Jet into a Sub- to Supercritical Environment of Relevance to Rocket, Gas Turbine, and Diesel Engines," AIA A Paper 99-0206, Jan. 1999). This conclusion suggested that it would be expected that the mathematical models and numerical methods used for gaseous flows could also be used for supercritical flows. This paper reports an investigation, exploring this hypothesis, and aims to evaluate the capabilities and limitations of a computational method developed for incompressible but variable density flows when applied to supercritical conditions. The predicted initial jet growth rate was compared with available experimental data for liquid/gaseous jets and mixing layers and showed a good agreement for different supercritical density ratios. For subcritical conditions, when the flow deviates from the gaseous-like behavior, and approaches a more spray-like behavior the incompressible gaseous flow formulation was found inadequate.pt_PT
dc.description.sponsorshipICCTI of the Portuguese Ministry of Science and the French Embassypt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.2514/2.6090pt_PT
dc.identifier.issn07484658
dc.identifier.urihttp://hdl.handle.net/10400.6/11539
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Institute of Aeronautics and Astronautics Incpt_PT
dc.relation.publisherversionhttps://arc.aiaa.org/doi/10.2514/2.6090pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCombustorspt_PT
dc.subjectRadial Velocitypt_PT
dc.subjectCritical Temperaturept_PT
dc.subjectPropellantpt_PT
dc.subjectGas Turbinept_PT
dc.subjectDiesel Enginespt_PT
dc.subjectRocketspt_PT
dc.subjectShear Layerspt_PT
dc.subjectChamber Pressurept_PT
dc.subjectConservation Equationspt_PT
dc.subjectCryogenic nitrogen jetspt_PT
dc.subjectSupercritical flowspt_PT
dc.subjectVariable density flowspt_PT
dc.titleNumerical Study of Cryogenic Jets Under Supercritical Conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage147pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage142pt_PT
oaire.citation.titleJournal of Propulsion and Powerpt_PT
oaire.citation.volume19pt_PT
person.familyNameMartins Barata
person.familyNameGOKALP
person.familyNameResende Rodrigues da Silva
person.givenNameJorge Manuel
person.givenNameISKENDER
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.orcid0000-0002-2684-9622
person.identifier.orcid0000-0002-4901-7140
person.identifier.scopus-author-id11439470600
person.identifier.scopus-author-id35585371100
person.identifier.scopus-author-id11440407500
rcaap.embargofctCopyright 2002 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code 0748-4658/03 $10.00 in correspondence with the CCC.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc4346556-933d-4f70-9b6d-8e1670d57be6
relation.isAuthorOfPublicationf3e924e0-a177-4ac0-8a86-456a3ebb0dc8
relation.isAuthorOfPublication908e150d-3890-457c-b5da-09c84671cb93
relation.isAuthorOfPublication.latestForDiscoveryf3e924e0-a177-4ac0-8a86-456a3ebb0dc8

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