Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air

The internal motions inside a liquid meniscus in the so-called liquid cone-jet mode, which can occur upon stimulation by a coflowing gas sheath in flow focusing, are explored by both numerical simulation and experimental visualization. The results for low viscosity liquids show that, as in previous...

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Detalhes bibliográficos
Autores: Gañán-Calvo, Alfonso M., Ferrera, C., Torregrosa, M., Herrada Gutiérrez, Miguel Ángel, Marchand, M.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2011
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/102521
Acesso em linha:https://hdl.handle.net/11441/102521
https://doi.org/10.1007/s10404-011-0774-9
Access Level:Acceso aberto
Palavra-chave:Cone-jet mode
Flow focusing
Flow structure visualization
Recirculating cell
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spelling Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by airGañán-Calvo, Alfonso M.Ferrera, C.Torregrosa, M.Herrada Gutiérrez, Miguel ÁngelMarchand, M.Cone-jet modeFlow focusingFlow structure visualizationRecirculating cellThe internal motions inside a liquid meniscus in the so-called liquid cone-jet mode, which can occur upon stimulation by a coflowing gas sheath in flow focusing, are explored by both numerical simulation and experimental visualization. The results for low viscosity liquids show that, as in previous numerical simulations, a recirculating cell inside the meniscus appears when the injected liquid flow rate is reduced. Thus, as the flow rate is reduced not only the average residence time of particles in the meniscus becomes longer, but the appearance of a recirculation cell provides a natural platform for the efficient micro-mixing of different species before they are ejected through the issuing jet. The numerical results were confirmed with experimental visualization of the flow inside the meniscus using a dyed liquid. However, when the viscosity of the liquid is increased the recirculating cell disappears. In this case, viscous stresses organize the streamlines and direct the flow to the meniscus tip, which prevents the recirculating cell from being formed even for very small injected rate of liquid flow.Ministerio de Educación y Ciencia (España) DPI2007-63559Junta de Extremadura GRU07003Junta de Andalucía P08-TEP-04128Springer-VerlagIngeniería Aeroespacial y Mecánica de FluidosTEP 219 : Física de Fluidos y Microfluidica2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/102521https://doi.org/10.1007/s10404-011-0774-9reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMicrofluidics and Nanofluidics, 11 (1), 65-74.DPI2007-63559GRU07003P08-TEP-04128https://link--springer--com.us.debiblio.com/article/10.1007/s10404-011-0774-9info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1025212026-06-17T12:51:07Z
dc.title.none.fl_str_mv Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
title Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
spellingShingle Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
Gañán-Calvo, Alfonso M.
Cone-jet mode
Flow focusing
Flow structure visualization
Recirculating cell
title_short Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
title_full Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
title_fullStr Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
title_full_unstemmed Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
title_sort Experimental and numerical study of the recirculation flow inside a liquid meniscus focused by air
dc.creator.none.fl_str_mv Gañán-Calvo, Alfonso M.
Ferrera, C.
Torregrosa, M.
Herrada Gutiérrez, Miguel Ángel
Marchand, M.
author Gañán-Calvo, Alfonso M.
author_facet Gañán-Calvo, Alfonso M.
Ferrera, C.
Torregrosa, M.
Herrada Gutiérrez, Miguel Ángel
Marchand, M.
author_role author
author2 Ferrera, C.
Torregrosa, M.
Herrada Gutiérrez, Miguel Ángel
Marchand, M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Aeroespacial y Mecánica de Fluidos
TEP 219 : Física de Fluidos y Microfluidica
dc.subject.none.fl_str_mv Cone-jet mode
Flow focusing
Flow structure visualization
Recirculating cell
topic Cone-jet mode
Flow focusing
Flow structure visualization
Recirculating cell
description The internal motions inside a liquid meniscus in the so-called liquid cone-jet mode, which can occur upon stimulation by a coflowing gas sheath in flow focusing, are explored by both numerical simulation and experimental visualization. The results for low viscosity liquids show that, as in previous numerical simulations, a recirculating cell inside the meniscus appears when the injected liquid flow rate is reduced. Thus, as the flow rate is reduced not only the average residence time of particles in the meniscus becomes longer, but the appearance of a recirculation cell provides a natural platform for the efficient micro-mixing of different species before they are ejected through the issuing jet. The numerical results were confirmed with experimental visualization of the flow inside the meniscus using a dyed liquid. However, when the viscosity of the liquid is increased the recirculating cell disappears. In this case, viscous stresses organize the streamlines and direct the flow to the meniscus tip, which prevents the recirculating cell from being formed even for very small injected rate of liquid flow.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/102521
https://doi.org/10.1007/s10404-011-0774-9
url https://hdl.handle.net/11441/102521
https://doi.org/10.1007/s10404-011-0774-9
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Microfluidics and Nanofluidics, 11 (1), 65-74.
DPI2007-63559
GRU07003
P08-TEP-04128
https://link--springer--com.us.debiblio.com/article/10.1007/s10404-011-0774-9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer-Verlag
publisher.none.fl_str_mv Springer-Verlag
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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