Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel

Detalhes bibliográficos
Autor(a) principal: Felisberto, Michelle Magalhães Barbosa
Data de Publicação: 2017
Outros Autores: Teixeira, Alvaro Vianna Novaes de Carvalho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://www.seer.ufv.br/seer/rbeq2/index.php/req2/article/view/94
http://www.locus.ufv.br/handle/123456789/13871
Resumo: A Digital Object Identifier (DOI) disponibilizada pela revista não corresponde
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spelling Felisberto, Michelle Magalhães BarbosaTeixeira, Alvaro Vianna Novaes de Carvalho2017-11-28T10:51:28Z2017-11-28T10:51:28Z2017-03-0325271075http://www.seer.ufv.br/seer/rbeq2/index.php/req2/article/view/94http://www.locus.ufv.br/handle/123456789/13871A Digital Object Identifier (DOI) disponibilizada pela revista não correspondeThis research uses a computational fluid dynamic model to simulate motion and deformation of a dielectric drop in electrolyte solution in a microchannel. Different values of wall charge density, the Debye-Hückel parameter and the Weber number (We) were used for uncharged, positively and negatively charged drop interfaces. Drop flow and deformation were analysed and the effects of charge distribution, electric field and permittivity jump were discussed. For a positively charged channel wall, negatively charged drops moved faster and positively charged drops moved slower than an uncharged drop. This effect increased for a higher We. Vortex flows were observed inside the drop. For a low surface tension, the drops were elongated due to electric forces acting on its surface with the charged drops deforming more than the uncharged one. When the permittivity component of the force was removed, the drop had a horizontal deformation that was sufficiently high to cause the negatively charged drop to break up.engThe Journal of Engineering and Exact Sciencesv. 03, n. 03, p. 294–319, Março 2017Computational fluid dynamic (CFD)Dielectric dropElectro-osmotic flowElectrolyte solutionMicrochannelSimulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannelinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINAL94-1519-1-PB.pdf94-1519-1-PB.pdftexto completoapplication/pdf5598925https://locus.ufv.br//bitstream/123456789/13871/1/94-1519-1-PB.pdf27141125839e123141c719ae704cf64fMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/13871/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAIL94-1519-1-PB.pdf.jpg94-1519-1-PB.pdf.jpgIM Thumbnailimage/jpeg4829https://locus.ufv.br//bitstream/123456789/13871/3/94-1519-1-PB.pdf.jpgf7c3bd0460bb31eed026bf5dfc757d04MD53123456789/138712017-11-28 22:01:06.907oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452017-11-29T01:01:06LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
title Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
spellingShingle Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
Felisberto, Michelle Magalhães Barbosa
Computational fluid dynamic (CFD)
Dielectric drop
Electro-osmotic flow
Electrolyte solution
Microchannel
title_short Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
title_full Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
title_fullStr Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
title_full_unstemmed Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
title_sort Simulation of a perfectly dielectric drop in electro-osmotic flow of an electrolyte through a microchannel
author Felisberto, Michelle Magalhães Barbosa
author_facet Felisberto, Michelle Magalhães Barbosa
Teixeira, Alvaro Vianna Novaes de Carvalho
author_role author
author2 Teixeira, Alvaro Vianna Novaes de Carvalho
author2_role author
dc.contributor.author.fl_str_mv Felisberto, Michelle Magalhães Barbosa
Teixeira, Alvaro Vianna Novaes de Carvalho
dc.subject.pt-BR.fl_str_mv Computational fluid dynamic (CFD)
Dielectric drop
Electro-osmotic flow
Electrolyte solution
Microchannel
topic Computational fluid dynamic (CFD)
Dielectric drop
Electro-osmotic flow
Electrolyte solution
Microchannel
description A Digital Object Identifier (DOI) disponibilizada pela revista não corresponde
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-11-28T10:51:28Z
dc.date.available.fl_str_mv 2017-11-28T10:51:28Z
dc.date.issued.fl_str_mv 2017-03-03
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://www.seer.ufv.br/seer/rbeq2/index.php/req2/article/view/94
http://www.locus.ufv.br/handle/123456789/13871
dc.identifier.issn.none.fl_str_mv 25271075
identifier_str_mv 25271075
url http://www.seer.ufv.br/seer/rbeq2/index.php/req2/article/view/94
http://www.locus.ufv.br/handle/123456789/13871
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 03, n. 03, p. 294–319, Março 2017
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dc.publisher.none.fl_str_mv The Journal of Engineering and Exact Sciences
publisher.none.fl_str_mv The Journal of Engineering and Exact Sciences
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