Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts

Autores
Almarcha, C.; Trevelyan, P. M. J.; Riolfo, L. A.; Zalts, Anita; El Hasi, Claudio Daniel; D'onofrio, Alejandro Gustavo; De Wit, A.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chemical reactions are able to trigger hydrodynamic flows by changing the density of the solutions across reactive interfaces. In this work, an experimental study of the buoyancy-driven hydrodynamic instabilities that can occur when two miscible reactive solutions of an acid−base system are put in contact in the gravity field shows that the patterns observed and the instabilities taking place strongly depend on the presence of a color indicator. A reaction−diffusion−convection model explains how the color indicator can modify the instability scenarios by affecting the density of the solutions and allows one to numerically recover the observed experimental patterns. The present work clearly demonstrates that color indicators should therefore be used with caution in experimental works devoted to analyze reaction−diffusion−convection patterns and instabilities.
Fil: Almarcha, C.. Université Libre de Bruxelles; Bélgica
Fil: Trevelyan, P. M. J.. Université Libre de Bruxelles; Bélgica
Fil: Riolfo, L. A.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Zalts, Anita. Universidad Nacional de General Sarmiento. Instituto de Ciencias. Área de Química; Argentina
Fil: El Hasi, Claudio Daniel. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina
Fil: D'onofrio, Alejandro Gustavo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: De Wit, A.. Université Libre de Bruxelles; Bélgica
Materia
REACTION-DIFUSSION
POROUS-MEDIA
HYDRODYNAMIC-INSTABILITIES
CHEMICAL-REACTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/243421
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical FrontsAlmarcha, C.Trevelyan, P. M. J.Riolfo, L. A.Zalts, AnitaEl Hasi, Claudio DanielD'onofrio, Alejandro GustavoDe Wit, A.REACTION-DIFUSSIONPOROUS-MEDIAHYDRODYNAMIC-INSTABILITIESCHEMICAL-REACTIONhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Chemical reactions are able to trigger hydrodynamic flows by changing the density of the solutions across reactive interfaces. In this work, an experimental study of the buoyancy-driven hydrodynamic instabilities that can occur when two miscible reactive solutions of an acid−base system are put in contact in the gravity field shows that the patterns observed and the instabilities taking place strongly depend on the presence of a color indicator. A reaction−diffusion−convection model explains how the color indicator can modify the instability scenarios by affecting the density of the solutions and allows one to numerically recover the observed experimental patterns. The present work clearly demonstrates that color indicators should therefore be used with caution in experimental works devoted to analyze reaction−diffusion−convection patterns and instabilities.Fil: Almarcha, C.. Université Libre de Bruxelles; BélgicaFil: Trevelyan, P. M. J.. Université Libre de Bruxelles; BélgicaFil: Riolfo, L. A.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Zalts, Anita. Universidad Nacional de General Sarmiento. Instituto de Ciencias. Área de Química; ArgentinaFil: El Hasi, Claudio Daniel. Universidad Nacional de General Sarmiento. Instituto de Ciencias; ArgentinaFil: D'onofrio, Alejandro Gustavo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: De Wit, A.. Université Libre de Bruxelles; BélgicaAmerican Chemical Society2010-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/243421Almarcha, C.; Trevelyan, P. M. J.; Riolfo, L. A.; Zalts, Anita; El Hasi, Claudio Daniel; et al.; Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts; American Chemical Society; The Journal of Physical Chemistry Letters; 1; 4; 1-2010; 752-7571948-7185CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jz900418dinfo:eu-repo/semantics/altIdentifier/doi/10.1021/jz900418dinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:00Zoai:ri.conicet.gov.ar:11336/243421instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:01.125CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
title Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
spellingShingle Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
Almarcha, C.
REACTION-DIFUSSION
POROUS-MEDIA
HYDRODYNAMIC-INSTABILITIES
CHEMICAL-REACTION
title_short Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
title_full Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
title_fullStr Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
title_full_unstemmed Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
title_sort Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts
dc.creator.none.fl_str_mv Almarcha, C.
Trevelyan, P. M. J.
Riolfo, L. A.
Zalts, Anita
El Hasi, Claudio Daniel
D'onofrio, Alejandro Gustavo
De Wit, A.
author Almarcha, C.
author_facet Almarcha, C.
Trevelyan, P. M. J.
Riolfo, L. A.
Zalts, Anita
El Hasi, Claudio Daniel
D'onofrio, Alejandro Gustavo
De Wit, A.
author_role author
author2 Trevelyan, P. M. J.
Riolfo, L. A.
Zalts, Anita
El Hasi, Claudio Daniel
D'onofrio, Alejandro Gustavo
De Wit, A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv REACTION-DIFUSSION
POROUS-MEDIA
HYDRODYNAMIC-INSTABILITIES
CHEMICAL-REACTION
topic REACTION-DIFUSSION
POROUS-MEDIA
HYDRODYNAMIC-INSTABILITIES
CHEMICAL-REACTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Chemical reactions are able to trigger hydrodynamic flows by changing the density of the solutions across reactive interfaces. In this work, an experimental study of the buoyancy-driven hydrodynamic instabilities that can occur when two miscible reactive solutions of an acid−base system are put in contact in the gravity field shows that the patterns observed and the instabilities taking place strongly depend on the presence of a color indicator. A reaction−diffusion−convection model explains how the color indicator can modify the instability scenarios by affecting the density of the solutions and allows one to numerically recover the observed experimental patterns. The present work clearly demonstrates that color indicators should therefore be used with caution in experimental works devoted to analyze reaction−diffusion−convection patterns and instabilities.
Fil: Almarcha, C.. Université Libre de Bruxelles; Bélgica
Fil: Trevelyan, P. M. J.. Université Libre de Bruxelles; Bélgica
Fil: Riolfo, L. A.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Zalts, Anita. Universidad Nacional de General Sarmiento. Instituto de Ciencias. Área de Química; Argentina
Fil: El Hasi, Claudio Daniel. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina
Fil: D'onofrio, Alejandro Gustavo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: De Wit, A.. Université Libre de Bruxelles; Bélgica
description Chemical reactions are able to trigger hydrodynamic flows by changing the density of the solutions across reactive interfaces. In this work, an experimental study of the buoyancy-driven hydrodynamic instabilities that can occur when two miscible reactive solutions of an acid−base system are put in contact in the gravity field shows that the patterns observed and the instabilities taking place strongly depend on the presence of a color indicator. A reaction−diffusion−convection model explains how the color indicator can modify the instability scenarios by affecting the density of the solutions and allows one to numerically recover the observed experimental patterns. The present work clearly demonstrates that color indicators should therefore be used with caution in experimental works devoted to analyze reaction−diffusion−convection patterns and instabilities.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/243421
Almarcha, C.; Trevelyan, P. M. J.; Riolfo, L. A.; Zalts, Anita; El Hasi, Claudio Daniel; et al.; Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts; American Chemical Society; The Journal of Physical Chemistry Letters; 1; 4; 1-2010; 752-757
1948-7185
CONICET Digital
CONICET
url http://hdl.handle.net/11336/243421
identifier_str_mv Almarcha, C.; Trevelyan, P. M. J.; Riolfo, L. A.; Zalts, Anita; El Hasi, Claudio Daniel; et al.; Active Role of a Color Indicator in Buoyancy-Driven Instabilities of Chemical Fronts; American Chemical Society; The Journal of Physical Chemistry Letters; 1; 4; 1-2010; 752-757
1948-7185
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jz900418d
info:eu-repo/semantics/altIdentifier/doi/10.1021/jz900418d
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269730674573312
score 13.13397

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