RANS Modeling of Transcritical and Supercritical Nitrogen Jets

Detalhes bibliográficos
Autor(a) principal: Antunes, Eduardo Luís Santos Farias
Data de Publicação: 2015
Outros Autores: Silva, André, Barata, Jorge M M
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.6/12171
Resumo: The present work is dedicated to the study of cryogenic nitrogen jets under supercritical chamber conditions with the objective of simulating the process of fuel injection inside a combustion engine. In order to do so, a numerical simulation using a RANS model was performed over two case studies previously analyzed by other authors both in experimental and numerical studies. The result obtained by the present numerical approach were then compared with previous results and this way accessed the capabilities of RANS approach using a k-ε turbulence model in which the density is calculated through the mixture fraction value to correctly model cryogenic jets at supercritical conditions. The results show the ability to achieve good agreement with other studies for the axial density distribution however for other parameters like the jet spreading angle the same agreement was not found.
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spelling RANS Modeling of Transcritical and Supercritical Nitrogen JetsLarge Eddy SimulationFuel InjectionKinematic ViscosityConservation EquationsCombustion ChambersRaman MeasurementsRadial VelocityCritical PressureFossil FuelsAxisymmetric FlowThe present work is dedicated to the study of cryogenic nitrogen jets under supercritical chamber conditions with the objective of simulating the process of fuel injection inside a combustion engine. In order to do so, a numerical simulation using a RANS model was performed over two case studies previously analyzed by other authors both in experimental and numerical studies. The result obtained by the present numerical approach were then compared with previous results and this way accessed the capabilities of RANS approach using a k-ε turbulence model in which the density is calculated through the mixture fraction value to correctly model cryogenic jets at supercritical conditions. The results show the ability to achieve good agreement with other studies for the axial density distribution however for other parameters like the jet spreading angle the same agreement was not found.Fundação para a Ciência e a TecnologiaAmerican Institute of Aeronautics and Astronautics IncuBibliorumAntunes, Eduardo Luís Santos FariasSilva, AndréBarata, Jorge M M2015-01-032060-01-03T00:00:00Z2015-01-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/12171engEduardo F. Antunes, Andre R. Silva, Jorge M. Barata RANS Modeling of Transcritical and Supercritical Nitrogen Jets 53rd AIAA Aerospace Sciences Meeting, SciTech 2015, Kissmmee, FL, EUA, 5-9 janeiro, 2015 DOI: 10.2514/6.2015-0469978-1-62410-343-810.2514/6.2015-0469info: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:RCAAP2023-12-15T09:55:09Zoai:ubibliorum.ubi.pt:10400.6/12171Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:51:50.280203Repositório 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 RANS Modeling of Transcritical and Supercritical Nitrogen Jets
title RANS Modeling of Transcritical and Supercritical Nitrogen Jets
spellingShingle RANS Modeling of Transcritical and Supercritical Nitrogen Jets
Antunes, Eduardo Luís Santos Farias
Large Eddy Simulation
Fuel Injection
Kinematic Viscosity
Conservation Equations
Combustion Chambers
Raman Measurements
Radial Velocity
Critical Pressure
Fossil Fuels
Axisymmetric Flow
title_short RANS Modeling of Transcritical and Supercritical Nitrogen Jets
title_full RANS Modeling of Transcritical and Supercritical Nitrogen Jets
title_fullStr RANS Modeling of Transcritical and Supercritical Nitrogen Jets
title_full_unstemmed RANS Modeling of Transcritical and Supercritical Nitrogen Jets
title_sort RANS Modeling of Transcritical and Supercritical Nitrogen Jets
author Antunes, Eduardo Luís Santos Farias
author_facet Antunes, Eduardo Luís Santos Farias
Silva, André
Barata, Jorge M M
author_role author
author2 Silva, André
Barata, Jorge M M
author2_role author
author
dc.contributor.none.fl_str_mv uBibliorum
dc.contributor.author.fl_str_mv Antunes, Eduardo Luís Santos Farias
Silva, André
Barata, Jorge M M
dc.subject.por.fl_str_mv Large Eddy Simulation
Fuel Injection
Kinematic Viscosity
Conservation Equations
Combustion Chambers
Raman Measurements
Radial Velocity
Critical Pressure
Fossil Fuels
Axisymmetric Flow
topic Large Eddy Simulation
Fuel Injection
Kinematic Viscosity
Conservation Equations
Combustion Chambers
Raman Measurements
Radial Velocity
Critical Pressure
Fossil Fuels
Axisymmetric Flow
description The present work is dedicated to the study of cryogenic nitrogen jets under supercritical chamber conditions with the objective of simulating the process of fuel injection inside a combustion engine. In order to do so, a numerical simulation using a RANS model was performed over two case studies previously analyzed by other authors both in experimental and numerical studies. The result obtained by the present numerical approach were then compared with previous results and this way accessed the capabilities of RANS approach using a k-ε turbulence model in which the density is calculated through the mixture fraction value to correctly model cryogenic jets at supercritical conditions. The results show the ability to achieve good agreement with other studies for the axial density distribution however for other parameters like the jet spreading angle the same agreement was not found.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-03
2015-01-03T00:00:00Z
2060-01-03T00:00:00Z
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/10400.6/12171
url http://hdl.handle.net/10400.6/12171
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Eduardo F. Antunes, Andre R. Silva, Jorge M. Barata RANS Modeling of Transcritical and Supercritical Nitrogen Jets 53rd AIAA Aerospace Sciences Meeting, SciTech 2015, Kissmmee, FL, EUA, 5-9 janeiro, 2015 DOI: 10.2514/6.2015-0469
978-1-62410-343-8
10.2514/6.2015-0469
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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