Numerical study of cryogenic jets under supercritical conditions
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.6/12207 |
Resumo: | The present work is devoted to the study of cryogenic nitrogen jets in sub- and supercritical conditions. A general trend to operate under an increasingly higher combustor pressures is observed in rockets, gas turbines, and diesel engines, primarily due to enhanced effects on thrust, power, or efficiency. In this conditions, the injected fluid(s) may experience ambient pressures exceeding the critical pressure(s) of the propellants, and recent experimental work of Chehroudi et al.1 showed a quantitative similarity to gas jet-like behavior This paper reports an investigation aimed to evaluate the capabilities 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 density ratios. |
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Numerical study of cryogenic jets under supercritical conditionsCombustion ChambersSpace Shuttle Main EngineCritical TemperatureVelocity ProfilesConservation EquationsPropellantShear LayersRadial VelocityAxisymmetric FlowAeronauticsThe present work is devoted to the study of cryogenic nitrogen jets in sub- and supercritical conditions. A general trend to operate under an increasingly higher combustor pressures is observed in rockets, gas turbines, and diesel engines, primarily due to enhanced effects on thrust, power, or efficiency. In this conditions, the injected fluid(s) may experience ambient pressures exceeding the critical pressure(s) of the propellants, and recent experimental work of Chehroudi et al.1 showed a quantitative similarity to gas jet-like behavior This paper reports an investigation aimed to evaluate the capabilities 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 density ratios.Fundação para a Ciência e a TecnologiaAmerican Institute of Aeronautics and Astronautics IncuBibliorumBarata, Jorge M MGokalp, IskenderSilva, André2012-08-222060-08-22T00:00:00Z2012-08-22T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/12207eng. J. M. M. Barata, A. R. R. Silva, I. Gokalp Numerical Simulation of Cryogenics Jets under Supercritical Conditions 40th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, EUA, 14-17 janeiro, 2002 DOI: 10.2514/6.2002-91610.2514/6.2002-916info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-15T09:55:15Zoai:ubibliorum.ubi.pt:10400.6/12207Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:51:52.091801Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Numerical study of cryogenic jets under supercritical conditions |
title |
Numerical study of cryogenic jets under supercritical conditions |
spellingShingle |
Numerical study of cryogenic jets under supercritical conditions Barata, Jorge M M Combustion Chambers Space Shuttle Main Engine Critical Temperature Velocity Profiles Conservation Equations Propellant Shear Layers Radial Velocity Axisymmetric Flow Aeronautics |
title_short |
Numerical study of cryogenic jets under supercritical conditions |
title_full |
Numerical study of cryogenic jets under supercritical conditions |
title_fullStr |
Numerical study of cryogenic jets under supercritical conditions |
title_full_unstemmed |
Numerical study of cryogenic jets under supercritical conditions |
title_sort |
Numerical study of cryogenic jets under supercritical conditions |
author |
Barata, Jorge M M |
author_facet |
Barata, Jorge M M Gokalp, Iskender Silva, André |
author_role |
author |
author2 |
Gokalp, Iskender Silva, André |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
uBibliorum |
dc.contributor.author.fl_str_mv |
Barata, Jorge M M Gokalp, Iskender Silva, André |
dc.subject.por.fl_str_mv |
Combustion Chambers Space Shuttle Main Engine Critical Temperature Velocity Profiles Conservation Equations Propellant Shear Layers Radial Velocity Axisymmetric Flow Aeronautics |
topic |
Combustion Chambers Space Shuttle Main Engine Critical Temperature Velocity Profiles Conservation Equations Propellant Shear Layers Radial Velocity Axisymmetric Flow Aeronautics |
description |
The present work is devoted to the study of cryogenic nitrogen jets in sub- and supercritical conditions. A general trend to operate under an increasingly higher combustor pressures is observed in rockets, gas turbines, and diesel engines, primarily due to enhanced effects on thrust, power, or efficiency. In this conditions, the injected fluid(s) may experience ambient pressures exceeding the critical pressure(s) of the propellants, and recent experimental work of Chehroudi et al.1 showed a quantitative similarity to gas jet-like behavior This paper reports an investigation aimed to evaluate the capabilities 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 density ratios. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-08-22 2012-08-22T00:00:00Z 2060-08-22T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.6/12207 |
url |
http://hdl.handle.net/10400.6/12207 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
. J. M. M. Barata, A. R. R. Silva, I. Gokalp Numerical Simulation of Cryogenics Jets under Supercritical Conditions 40th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, EUA, 14-17 janeiro, 2002 DOI: 10.2514/6.2002-916 10.2514/6.2002-916 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
American Institute of Aeronautics and Astronautics Inc |
publisher.none.fl_str_mv |
American Institute of Aeronautics and Astronautics Inc |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136407210426368 |