Spray impingement modelling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/10400.6/11550 |
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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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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 |
_version_ |
1817549659524038656 |