Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10400.6/12165 |
Resumo: | In Liquid Rocket Engines, higher combustion efficiencies come at the cost of the propellants exceeding their critical point conditions and entering the supercritical domain. The term fluid is used because, under these conditions, there is no longer a clear distinction between a liquid and a gas phase. The non-conventional behavior of thermophysical properties makes the modeling of supercritical fluid flows a most challenging task. In the present work, a RANS computational method following an incompressible but variable density approach is devised on which the performance of several turbulence models is compared in conjunction with a high accuracy multi-parameter equation of state. Also, a suitable methodology to describe transport properties accounting for dense fluid corrections is applied. The results are validated against experimental data, becoming clear that there is no trend between turbulence model complexity and the quality of the produced results. For several instances, one- and two- equation turbulence models produce similar and better results than those of Large Eddy Simulation (LES). Finally, considerations about the applicability of the tested turbulence models in supercritical simulations are given based on the results and the structural nature of each model. |
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Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence ModelsSupercritial fluidsRANS turbulence modelingLiquid rocket enginesIn Liquid Rocket Engines, higher combustion efficiencies come at the cost of the propellants exceeding their critical point conditions and entering the supercritical domain. The term fluid is used because, under these conditions, there is no longer a clear distinction between a liquid and a gas phase. The non-conventional behavior of thermophysical properties makes the modeling of supercritical fluid flows a most challenging task. In the present work, a RANS computational method following an incompressible but variable density approach is devised on which the performance of several turbulence models is compared in conjunction with a high accuracy multi-parameter equation of state. Also, a suitable methodology to describe transport properties accounting for dense fluid corrections is applied. The results are validated against experimental data, becoming clear that there is no trend between turbulence model complexity and the quality of the produced results. For several instances, one- and two- equation turbulence models produce similar and better results than those of Large Eddy Simulation (LES). Finally, considerations about the applicability of the tested turbulence models in supercritical simulations are given based on the results and the structural nature of each model.Fundação para a Ciência e a TecnologiaKnowledge EuBibliorumMagalhães, LeandroCarvalho, FranciscoSilva, AndréBarata, Jorge M M2022-04-04T10:56:09Z2020-06-022020-06-02T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/12165engLeandro Magalhães, Francisco Carvalho, André Silva, and Jorge Barata, (2020), “Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models” in International Congress on Engineering — Engineering for Evolution, KnE Engineering, pages 356–367. DOI 10.18502/keg.v5i6.70522518-684110.18502/keg.v5i6.7052info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-15T09:55:07Zoai:ubibliorum.ubi.pt:10400.6/12165Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:51:49.968149Repositório 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 |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
title |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
spellingShingle |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models Magalhães, Leandro Supercritial fluids RANS turbulence modeling Liquid rocket engines |
title_short |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
title_full |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
title_fullStr |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
title_full_unstemmed |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
title_sort |
Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models |
author |
Magalhães, Leandro |
author_facet |
Magalhães, Leandro Carvalho, Francisco Silva, André Barata, Jorge M M |
author_role |
author |
author2 |
Carvalho, Francisco Silva, André Barata, Jorge M M |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
uBibliorum |
dc.contributor.author.fl_str_mv |
Magalhães, Leandro Carvalho, Francisco Silva, André Barata, Jorge M M |
dc.subject.por.fl_str_mv |
Supercritial fluids RANS turbulence modeling Liquid rocket engines |
topic |
Supercritial fluids RANS turbulence modeling Liquid rocket engines |
description |
In Liquid Rocket Engines, higher combustion efficiencies come at the cost of the propellants exceeding their critical point conditions and entering the supercritical domain. The term fluid is used because, under these conditions, there is no longer a clear distinction between a liquid and a gas phase. The non-conventional behavior of thermophysical properties makes the modeling of supercritical fluid flows a most challenging task. In the present work, a RANS computational method following an incompressible but variable density approach is devised on which the performance of several turbulence models is compared in conjunction with a high accuracy multi-parameter equation of state. Also, a suitable methodology to describe transport properties accounting for dense fluid corrections is applied. The results are validated against experimental data, becoming clear that there is no trend between turbulence model complexity and the quality of the produced results. For several instances, one- and two- equation turbulence models produce similar and better results than those of Large Eddy Simulation (LES). Finally, considerations about the applicability of the tested turbulence models in supercritical simulations are given based on the results and the structural nature of each model. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-02 2020-06-02T00:00:00Z 2022-04-04T10:56:09Z |
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/10400.6/12165 |
url |
http://hdl.handle.net/10400.6/12165 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Leandro Magalhães, Francisco Carvalho, André Silva, and Jorge Barata, (2020), “Turbulence Quantification in Supercritical Nitrogen Injection: An Analysis of Turbulence Models” in International Congress on Engineering — Engineering for Evolution, KnE Engineering, pages 356–367. DOI 10.18502/keg.v5i6.7052 2518-6841 10.18502/keg.v5i6.7052 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Knowledge E |
publisher.none.fl_str_mv |
Knowledge E |
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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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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1799136407141220352 |