Dynamics of two-dimensional liquid bridges
Autor(a) principal: | |
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Data de Publicação: | 2022 |
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/10400.21/14682 |
Resumo: | We have simulated the motion of a single vertical, two-dimensional liquid bridge spanning the gap between two flat, horizontal solid substrates of given wettabilities, using a multicomponent pseudopotential lattice Boltzmann method. For this simple geometry, the Young-Laplace equation can be solved (quasi-)analytically to yield the equilibrium bridge shape under gravity, which provides a check on the validity of the numerical method. In steady-state conditions, we calculate the drag force exerted by the moving bridge on the confining substrates as a function of its velocity, for different contact angles and Bond numbers. We also study how the bridge deforms as it moves, as parametrized by the changes in the advancing and receding contact angles at the substrates relative to their equilibrium values. Finally, starting from a bridge within the range of contact angles and Bond numbers in which it can exist at equilibrium, we investigate how fast it must move in order to break up. |
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Dynamics of two-dimensional liquid bridgesLiquid bridgeBinary fluidsLattice Boltzmann methodWettingFluid dynamicsWe have simulated the motion of a single vertical, two-dimensional liquid bridge spanning the gap between two flat, horizontal solid substrates of given wettabilities, using a multicomponent pseudopotential lattice Boltzmann method. For this simple geometry, the Young-Laplace equation can be solved (quasi-)analytically to yield the equilibrium bridge shape under gravity, which provides a check on the validity of the numerical method. In steady-state conditions, we calculate the drag force exerted by the moving bridge on the confining substrates as a function of its velocity, for different contact angles and Bond numbers. We also study how the bridge deforms as it moves, as parametrized by the changes in the advancing and receding contact angles at the substrates relative to their equilibrium values. Finally, starting from a bridge within the range of contact angles and Bond numbers in which it can exist at equilibrium, we investigate how fast it must move in order to break up.IOP PublishingRCIPLCoelho, RodrigoCordeiro, Luis A. R. G.Gazola, Rodrigo B.Teixeira, Paulo2022-06-02T08:20:57Z2022-05-182022-05-18T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/14682engCOELHO, Rodrigo C. V.; [et al] – Dynamics of two-dimensional liquid bridges. Journal of Physics: Condensed Matter. ISSN 0953-8984. Vol. 34, N.º 20 (2022), pp. 1-8.0953-898410.1088/1361-648X/ac594b1361-648Xmetadata only accessinfo: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:RCAAP2023-08-03T10:11:12Zoai:repositorio.ipl.pt:10400.21/14682Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:22:26.959907Repositório 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 |
Dynamics of two-dimensional liquid bridges |
title |
Dynamics of two-dimensional liquid bridges |
spellingShingle |
Dynamics of two-dimensional liquid bridges Coelho, Rodrigo Liquid bridge Binary fluids Lattice Boltzmann method Wetting Fluid dynamics |
title_short |
Dynamics of two-dimensional liquid bridges |
title_full |
Dynamics of two-dimensional liquid bridges |
title_fullStr |
Dynamics of two-dimensional liquid bridges |
title_full_unstemmed |
Dynamics of two-dimensional liquid bridges |
title_sort |
Dynamics of two-dimensional liquid bridges |
author |
Coelho, Rodrigo |
author_facet |
Coelho, Rodrigo Cordeiro, Luis A. R. G. Gazola, Rodrigo B. Teixeira, Paulo |
author_role |
author |
author2 |
Cordeiro, Luis A. R. G. Gazola, Rodrigo B. Teixeira, Paulo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Coelho, Rodrigo Cordeiro, Luis A. R. G. Gazola, Rodrigo B. Teixeira, Paulo |
dc.subject.por.fl_str_mv |
Liquid bridge Binary fluids Lattice Boltzmann method Wetting Fluid dynamics |
topic |
Liquid bridge Binary fluids Lattice Boltzmann method Wetting Fluid dynamics |
description |
We have simulated the motion of a single vertical, two-dimensional liquid bridge spanning the gap between two flat, horizontal solid substrates of given wettabilities, using a multicomponent pseudopotential lattice Boltzmann method. For this simple geometry, the Young-Laplace equation can be solved (quasi-)analytically to yield the equilibrium bridge shape under gravity, which provides a check on the validity of the numerical method. In steady-state conditions, we calculate the drag force exerted by the moving bridge on the confining substrates as a function of its velocity, for different contact angles and Bond numbers. We also study how the bridge deforms as it moves, as parametrized by the changes in the advancing and receding contact angles at the substrates relative to their equilibrium values. Finally, starting from a bridge within the range of contact angles and Bond numbers in which it can exist at equilibrium, we investigate how fast it must move in order to break up. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-02T08:20:57Z 2022-05-18 2022-05-18T00:00:00Z |
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/10400.21/14682 |
url |
http://hdl.handle.net/10400.21/14682 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
COELHO, Rodrigo C. V.; [et al] – Dynamics of two-dimensional liquid bridges. Journal of Physics: Condensed Matter. ISSN 0953-8984. Vol. 34, N.º 20 (2022), pp. 1-8. 0953-8984 10.1088/1361-648X/ac594b 1361-648X |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
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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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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1799133496755617792 |