Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Christian
Data de Publicação: 2013
Outros Autores: Barata, Jorge M M, Silva, André
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.6/12180
Resumo: This paper is concerned with the improvement of macroscopic spray impingement simulations, for which a sub-model has been proposed for the formation of the liquid film over the impingement wall due to the deposition of particles. This computational extension deals with the interaction and spreading of the liquid between adjacent nodes due to the dynamic motion induced by the film inertia and crossflow velocity, as well as, the exchange of mass between incident drops, secondary droplets and liquid film. Moreover, an empirical correlation deduced from experimental data is used to define the relative liquid film thickness. Experimental data are used to validate the numerical model. Good agreement is obtained between numerical and experimental results for the test cases performed. The distribution of the relative liquid film thickness for two cases of crossflow velocities are also illustrated, as well as, its temporal evolution from start of injection. The dynamic behavior of the layer proved to be in concordance with the observations reported in experimental investigations available in the literature.
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spelling Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement ModelNumerical ModelingReynolds Averaged Navier StokesWeber NumberVelocity ProfilesProbability Density FunctionsSurface RoughnessMultiphase FlowsThin FilmsKinetic EnergyAir Flow RateThis paper is concerned with the improvement of macroscopic spray impingement simulations, for which a sub-model has been proposed for the formation of the liquid film over the impingement wall due to the deposition of particles. This computational extension deals with the interaction and spreading of the liquid between adjacent nodes due to the dynamic motion induced by the film inertia and crossflow velocity, as well as, the exchange of mass between incident drops, secondary droplets and liquid film. Moreover, an empirical correlation deduced from experimental data is used to define the relative liquid film thickness. Experimental data are used to validate the numerical model. Good agreement is obtained between numerical and experimental results for the test cases performed. The distribution of the relative liquid film thickness for two cases of crossflow velocities are also illustrated, as well as, its temporal evolution from start of injection. The dynamic behavior of the layer proved to be in concordance with the observations reported in experimental investigations available in the literature.American Institute of Aeronautics and Astronautics IncuBibliorumRodrigues, ChristianBarata, Jorge M MSilva, André2013-01-052060-01-05T00:00:00Z2013-01-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/12180engRodrigues, C.M.G., Barata, J.M.M., Silva, A.R.R. Development of a Dynamic Liquid Film Extension and Integration into a Spray Impingement Model 51th Aerospace Sciences Meeting, Grapevine (Dallas/Ft. Worth Region), Texas, EUA, 7-10 janeiro, 2013 DOI: 10.2514/6.2013-890978-162410181-610.2514/6.2013-890info: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:RCAAP2023-12-15T09:55:11Zoai:ubibliorum.ubi.pt:10400.6/12180Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:51:50.695551Repositório 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 Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
title Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
spellingShingle Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
Rodrigues, Christian
Numerical Modeling
Reynolds Averaged Navier Stokes
Weber Number
Velocity Profiles
Probability Density Functions
Surface Roughness
Multiphase Flows
Thin Films
Kinetic Energy
Air Flow Rate
title_short Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
title_full Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
title_fullStr Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
title_full_unstemmed Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
title_sort Development of a New Dynamic Liquid Film Extension and Integration into a Spray Impingement Model
author Rodrigues, Christian
author_facet Rodrigues, Christian
Barata, Jorge M M
Silva, André
author_role author
author2 Barata, Jorge M M
Silva, André
author2_role author
author
dc.contributor.none.fl_str_mv uBibliorum
dc.contributor.author.fl_str_mv Rodrigues, Christian
Barata, Jorge M M
Silva, André
dc.subject.por.fl_str_mv Numerical Modeling
Reynolds Averaged Navier Stokes
Weber Number
Velocity Profiles
Probability Density Functions
Surface Roughness
Multiphase Flows
Thin Films
Kinetic Energy
Air Flow Rate
topic Numerical Modeling
Reynolds Averaged Navier Stokes
Weber Number
Velocity Profiles
Probability Density Functions
Surface Roughness
Multiphase Flows
Thin Films
Kinetic Energy
Air Flow Rate
description This paper is concerned with the improvement of macroscopic spray impingement simulations, for which a sub-model has been proposed for the formation of the liquid film over the impingement wall due to the deposition of particles. This computational extension deals with the interaction and spreading of the liquid between adjacent nodes due to the dynamic motion induced by the film inertia and crossflow velocity, as well as, the exchange of mass between incident drops, secondary droplets and liquid film. Moreover, an empirical correlation deduced from experimental data is used to define the relative liquid film thickness. Experimental data are used to validate the numerical model. Good agreement is obtained between numerical and experimental results for the test cases performed. The distribution of the relative liquid film thickness for two cases of crossflow velocities are also illustrated, as well as, its temporal evolution from start of injection. The dynamic behavior of the layer proved to be in concordance with the observations reported in experimental investigations available in the literature.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-05
2013-01-05T00:00:00Z
2060-01-05T00:00:00Z
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/10400.6/12180
url http://hdl.handle.net/10400.6/12180
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rodrigues, C.M.G., Barata, J.M.M., Silva, A.R.R. Development of a Dynamic Liquid Film Extension and Integration into a Spray Impingement Model 51th Aerospace Sciences Meeting, Grapevine (Dallas/Ft. Worth Region), Texas, EUA, 7-10 janeiro, 2013 DOI: 10.2514/6.2013-890
978-162410181-6
10.2514/6.2013-890
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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