Secondary waves in Ribbing Instability

Autores
Rosen, Marta; Vazquez, Mariano
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Many natural and technological processes involve phenomena dominated by interfacial mechanics, i.e., occurring within regions of intersection between several fluid and/or solid phases. In addition to capillary and gravitational effects, interfacial phenomena typically involve the interplay of complex processes such as dynamic contact lines, surface active materials, adhesion, temperature and/or compositional gradients, evaporation, etc. The aim of this work is to analyze the answer of the coating system with one cylinder, when viscoelastic polymers are used. We report new experimental results concerning different dynamical regimes, including traveling waves, obtained in that simple configuration and with free boundary conditions. In the experiments with a non‐Newtonian fluid (viscoelastic) with high molecular weight polymer (PIB_H), propagative modes have been observed for Ca > Ca*. In this case, as the distance to the threshold increases, the digitations standard, initially stationary, presents propagative modes only in some of the regions over the cylinder, and finally the traveling wave is established throughout the whole cylinder without showing any preferential direction. Propagative states have already been observed in the case of two rigid cylinders rotating with opposed surface speeds. However, in that case, the presence of defects does not produce a well‐defined traveling wave and the system shows a rapid transition to chaos. Analyzing the space‐temporal diagrams, the wave phase velocity could be measured with a methodology that allows calculating systematically this value, and we find a linear correlation between the capillary number Ca and the phase velocity Vf. Besides, a detailed description of bifurcations has been made until reaching a chaotic state where it is possible observes the coexistence of traveling wave zones.
Fil: Rosen, Marta. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vazquez, Mariano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Materia
Instability
Viscoelastic
Polymers
Multifractality
Faraday Experiment
Chaos
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:11336/20191
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/20191
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network_name_str CONICET Digital (CONICET)
spelling Secondary waves in Ribbing InstabilityRosen, MartaVazquez, MarianoInstabilityViscoelasticPolymersMultifractalityFaraday ExperimentChaoshttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2Many natural and technological processes involve phenomena dominated by interfacial mechanics, i.e., occurring within regions of intersection between several fluid and/or solid phases. In addition to capillary and gravitational effects, interfacial phenomena typically involve the interplay of complex processes such as dynamic contact lines, surface active materials, adhesion, temperature and/or compositional gradients, evaporation, etc. The aim of this work is to analyze the answer of the coating system with one cylinder, when viscoelastic polymers are used. We report new experimental results concerning different dynamical regimes, including traveling waves, obtained in that simple configuration and with free boundary conditions. In the experiments with a non‐Newtonian fluid (viscoelastic) with high molecular weight polymer (PIB_H), propagative modes have been observed for Ca > Ca*. In this case, as the distance to the threshold increases, the digitations standard, initially stationary, presents propagative modes only in some of the regions over the cylinder, and finally the traveling wave is established throughout the whole cylinder without showing any preferential direction. Propagative states have already been observed in the case of two rigid cylinders rotating with opposed surface speeds. However, in that case, the presence of defects does not produce a well‐defined traveling wave and the system shows a rapid transition to chaos. Analyzing the space‐temporal diagrams, the wave phase velocity could be measured with a methodology that allows calculating systematically this value, and we find a linear correlation between the capillary number Ca and the phase velocity Vf. Besides, a detailed description of bifurcations has been made until reaching a chaotic state where it is possible observes the coexistence of traveling wave zones.Fil: Rosen, Marta. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vazquez, Mariano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaAmerican Institute of Physics2007-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfimage/jpegapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20191Rosen, Marta; Vazquez, Mariano; Secondary waves in Ribbing Instability; American Institute of Physics; AIP Conference Proceedings; 913; 1; 6-2007; 14-201551-7616CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.2746717info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/abs/10.1063/1.2746717info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:21Zoai:ri.conicet.gov.ar:11336/20191instacron: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 10:11:21.534CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Secondary waves in Ribbing Instability
title Secondary waves in Ribbing Instability
spellingShingle Secondary waves in Ribbing Instability
Rosen, Marta
Instability
Viscoelastic
Polymers
Multifractality
Faraday Experiment
Chaos
title_short Secondary waves in Ribbing Instability
title_full Secondary waves in Ribbing Instability
title_fullStr Secondary waves in Ribbing Instability
title_full_unstemmed Secondary waves in Ribbing Instability
title_sort Secondary waves in Ribbing Instability
dc.creator.none.fl_str_mv Rosen, Marta
Vazquez, Mariano
author Rosen, Marta
author_facet Rosen, Marta
Vazquez, Mariano
author_role author
author2 Vazquez, Mariano
author2_role author
dc.subject.none.fl_str_mv Instability
Viscoelastic
Polymers
Multifractality
Faraday Experiment
Chaos
topic Instability
Viscoelastic
Polymers
Multifractality
Faraday Experiment
Chaos
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Many natural and technological processes involve phenomena dominated by interfacial mechanics, i.e., occurring within regions of intersection between several fluid and/or solid phases. In addition to capillary and gravitational effects, interfacial phenomena typically involve the interplay of complex processes such as dynamic contact lines, surface active materials, adhesion, temperature and/or compositional gradients, evaporation, etc. The aim of this work is to analyze the answer of the coating system with one cylinder, when viscoelastic polymers are used. We report new experimental results concerning different dynamical regimes, including traveling waves, obtained in that simple configuration and with free boundary conditions. In the experiments with a non‐Newtonian fluid (viscoelastic) with high molecular weight polymer (PIB_H), propagative modes have been observed for Ca > Ca*. In this case, as the distance to the threshold increases, the digitations standard, initially stationary, presents propagative modes only in some of the regions over the cylinder, and finally the traveling wave is established throughout the whole cylinder without showing any preferential direction. Propagative states have already been observed in the case of two rigid cylinders rotating with opposed surface speeds. However, in that case, the presence of defects does not produce a well‐defined traveling wave and the system shows a rapid transition to chaos. Analyzing the space‐temporal diagrams, the wave phase velocity could be measured with a methodology that allows calculating systematically this value, and we find a linear correlation between the capillary number Ca and the phase velocity Vf. Besides, a detailed description of bifurcations has been made until reaching a chaotic state where it is possible observes the coexistence of traveling wave zones.
Fil: Rosen, Marta. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vazquez, Mariano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
description Many natural and technological processes involve phenomena dominated by interfacial mechanics, i.e., occurring within regions of intersection between several fluid and/or solid phases. In addition to capillary and gravitational effects, interfacial phenomena typically involve the interplay of complex processes such as dynamic contact lines, surface active materials, adhesion, temperature and/or compositional gradients, evaporation, etc. The aim of this work is to analyze the answer of the coating system with one cylinder, when viscoelastic polymers are used. We report new experimental results concerning different dynamical regimes, including traveling waves, obtained in that simple configuration and with free boundary conditions. In the experiments with a non‐Newtonian fluid (viscoelastic) with high molecular weight polymer (PIB_H), propagative modes have been observed for Ca > Ca*. In this case, as the distance to the threshold increases, the digitations standard, initially stationary, presents propagative modes only in some of the regions over the cylinder, and finally the traveling wave is established throughout the whole cylinder without showing any preferential direction. Propagative states have already been observed in the case of two rigid cylinders rotating with opposed surface speeds. However, in that case, the presence of defects does not produce a well‐defined traveling wave and the system shows a rapid transition to chaos. Analyzing the space‐temporal diagrams, the wave phase velocity could be measured with a methodology that allows calculating systematically this value, and we find a linear correlation between the capillary number Ca and the phase velocity Vf. Besides, a detailed description of bifurcations has been made until reaching a chaotic state where it is possible observes the coexistence of traveling wave zones.
publishDate 2007
dc.date.none.fl_str_mv 2007-06
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/11336/20191
Rosen, Marta; Vazquez, Mariano; Secondary waves in Ribbing Instability; American Institute of Physics; AIP Conference Proceedings; 913; 1; 6-2007; 14-20
1551-7616
CONICET Digital
CONICET
url http://hdl.handle.net/11336/20191
identifier_str_mv Rosen, Marta; Vazquez, Mariano; Secondary waves in Ribbing Instability; American Institute of Physics; AIP Conference Proceedings; 913; 1; 6-2007; 14-20
1551-7616
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.2746717
info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/abs/10.1063/1.2746717
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
image/jpeg
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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
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