Direct numerical simulations of emulsion flows

Detalhes bibliográficos
Autor(a) principal: Cunha,F. R.
Data de Publicação: 2003
Outros Autores: Almeida,M. H. P., Loewenberg,M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782003000100005
Resumo: In this paper, three-dimensional boundary integral computer simulations of emulsions in shear flows are described. Results for ordered BCC emulsions with dispersed-phase volume fractions below the critical concentration are presented. Complex rheological features including: shear-thinning viscosities, normal stress differences, and a nonlinear frequency response are also explored. For deformable drops, pairwise collision produces net cross-flow displacements that govern self-diffusion of drops. We compute trajectories of two interacting drops in shearing and present interesting numerical simulations of three dimensional gravity-induced motion of two drops. The results also demonstrate the feasibility of simulating high-volume-fraction emulsions and foam.
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spelling Direct numerical simulations of emulsion flowsBoundary integralemulsionsimulationrheologyshear flowIn this paper, three-dimensional boundary integral computer simulations of emulsions in shear flows are described. Results for ordered BCC emulsions with dispersed-phase volume fractions below the critical concentration are presented. Complex rheological features including: shear-thinning viscosities, normal stress differences, and a nonlinear frequency response are also explored. For deformable drops, pairwise collision produces net cross-flow displacements that govern self-diffusion of drops. We compute trajectories of two interacting drops in shearing and present interesting numerical simulations of three dimensional gravity-induced motion of two drops. The results also demonstrate the feasibility of simulating high-volume-fraction emulsions and foam.Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM2003-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782003000100005Journal of the Brazilian Society of Mechanical Sciences and Engineering v.25 n.1 2003reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1678-58782003000100005info:eu-repo/semantics/openAccessCunha,F. R.Almeida,M. H. P.Loewenberg,M.eng2004-03-18T00:00:00Zoai:scielo:S1678-58782003000100005Revistahttps://www.scielo.br/j/jbsmse/https://old.scielo.br/oai/scielo-oai.php||abcm@abcm.org.br1806-36911678-5878opendoar:2004-03-18T00:00Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Direct numerical simulations of emulsion flows
title Direct numerical simulations of emulsion flows
spellingShingle Direct numerical simulations of emulsion flows
Cunha,F. R.
Boundary integral
emulsion
simulation
rheology
shear flow
title_short Direct numerical simulations of emulsion flows
title_full Direct numerical simulations of emulsion flows
title_fullStr Direct numerical simulations of emulsion flows
title_full_unstemmed Direct numerical simulations of emulsion flows
title_sort Direct numerical simulations of emulsion flows
author Cunha,F. R.
author_facet Cunha,F. R.
Almeida,M. H. P.
Loewenberg,M.
author_role author
author2 Almeida,M. H. P.
Loewenberg,M.
author2_role author
author
dc.contributor.author.fl_str_mv Cunha,F. R.
Almeida,M. H. P.
Loewenberg,M.
dc.subject.por.fl_str_mv Boundary integral
emulsion
simulation
rheology
shear flow
topic Boundary integral
emulsion
simulation
rheology
shear flow
description In this paper, three-dimensional boundary integral computer simulations of emulsions in shear flows are described. Results for ordered BCC emulsions with dispersed-phase volume fractions below the critical concentration are presented. Complex rheological features including: shear-thinning viscosities, normal stress differences, and a nonlinear frequency response are also explored. For deformable drops, pairwise collision produces net cross-flow displacements that govern self-diffusion of drops. We compute trajectories of two interacting drops in shearing and present interesting numerical simulations of three dimensional gravity-induced motion of two drops. The results also demonstrate the feasibility of simulating high-volume-fraction emulsions and foam.
publishDate 2003
dc.date.none.fl_str_mv 2003-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782003000100005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782003000100005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-58782003000100005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
dc.source.none.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering v.25 n.1 2003
reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
collection Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
repository.name.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv ||abcm@abcm.org.br
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