Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Christian
Data de Publicação: 2012
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/10400.6/11550
Resumo: The goal of the present research is to contribute to improve the knowledge about the spray impingement topic through a numerical study that is aimed at investigating the impact of using the dissipative energy terms that are available in the literature when they are embedded into a specific dispersion model. Comparing all the numerical approaches, a non-negligible disagreement is observed between the relationship proposed in the original model and the other ones drawn from the literature. This fact evidences the influence of the energy dissipated term on the secondary atomization outcome. The present work also provides a comprehensive study on the estimation of the energy dissipated during the splash event. This is a major contribution to the permanent literature since the few works found only addressed the spread regime. In addition, this paper gives an in-depth analysis on the influence that an enhanced treatment of the boundary layer in the region close to the wall may have in the simulation of such flows. The work revealed that this near-wall droplets tracking method provides an alternative way to increase the accuracy of the dispersed phase and achieve more consistent results without the necessity of a direct mesh refinement.
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spelling Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatmentDroplets-wall interactionEnergy dissipationSplash regimeSpray impingementSecondary atomizationNear-wall treatmentNumerical approachesDissipative energy lossDispersion modelingThe goal of the present research is to contribute to improve the knowledge about the spray impingement topic through a numerical study that is aimed at investigating the impact of using the dissipative energy terms that are available in the literature when they are embedded into a specific dispersion model. Comparing all the numerical approaches, a non-negligible disagreement is observed between the relationship proposed in the original model and the other ones drawn from the literature. This fact evidences the influence of the energy dissipated term on the secondary atomization outcome. The present work also provides a comprehensive study on the estimation of the energy dissipated during the splash event. This is a major contribution to the permanent literature since the few works found only addressed the spread regime. In addition, this paper gives an in-depth analysis on the influence that an enhanced treatment of the boundary layer in the region close to the wall may have in the simulation of such flows. The work revealed that this near-wall droplets tracking method provides an alternative way to increase the accuracy of the dispersed phase and achieve more consistent results without the necessity of a direct mesh refinement.Fundação para a Ciência e a TecnologiaElsevier B. V.uBibliorumRodrigues, ChristianBarata, Jorge M MSilva, André2022-01-04T11:23:59Z2012-08-242012-08-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.6/11550eng0378382010.1016/j.fuproc.2012.08.002info: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:RCAAP2024-11-27T12:37:10Zoai:ubibliorum.ubi.pt:10400.6/11550Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-27T12:37:10Repositório 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 Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
title Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
spellingShingle Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
Rodrigues, Christian
Droplets-wall interaction
Energy dissipation
Splash regime
Spray impingement
Secondary atomization
Near-wall treatment
Numerical approaches
Dissipative energy loss
Dispersion modeling
title_short Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
title_full Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
title_fullStr Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
title_full_unstemmed Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
title_sort Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
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 Droplets-wall interaction
Energy dissipation
Splash regime
Spray impingement
Secondary atomization
Near-wall treatment
Numerical approaches
Dissipative energy loss
Dispersion modeling
topic Droplets-wall interaction
Energy dissipation
Splash regime
Spray impingement
Secondary atomization
Near-wall treatment
Numerical approaches
Dissipative energy loss
Dispersion modeling
description The goal of the present research is to contribute to improve the knowledge about the spray impingement topic through a numerical study that is aimed at investigating the impact of using the dissipative energy terms that are available in the literature when they are embedded into a specific dispersion model. Comparing all the numerical approaches, a non-negligible disagreement is observed between the relationship proposed in the original model and the other ones drawn from the literature. This fact evidences the influence of the energy dissipated term on the secondary atomization outcome. The present work also provides a comprehensive study on the estimation of the energy dissipated during the splash event. This is a major contribution to the permanent literature since the few works found only addressed the spread regime. In addition, this paper gives an in-depth analysis on the influence that an enhanced treatment of the boundary layer in the region close to the wall may have in the simulation of such flows. The work revealed that this near-wall droplets tracking method provides an alternative way to increase the accuracy of the dispersed phase and achieve more consistent results without the necessity of a direct mesh refinement.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-24
2012-08-24T00:00:00Z
2022-01-04T11:23:59Z
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/10400.6/11550
url http://hdl.handle.net/10400.6/11550
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 03783820
10.1016/j.fuproc.2012.08.002
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 Elsevier B. V.
publisher.none.fl_str_mv Elsevier B. V.
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 mluisa.alvim@gmail.com
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