RANS Modeling of Transcritical and Supercritical Nitrogen Jets
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/10400.6/12171 |
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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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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136407151706112 |