Experimental study of solute dispersion in macroscopic suspension flow

Autores
Roht, Yanina Lucrecia; Boschan, Alejandro; Ippolito, Irene Paula; Chertcoff, Ricardo Héctor
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We experimentally investigate the influence of suspended neutrally-buoyant particles on the dispersion of a passive solute in pressure-driven axial flow in a constant aperture fracture (parallel plates configuration). A dye is employed as solute in order to measure its local concentration by means of a light transmission technique. In the experiments a dyed particle suspension displaces a transparent one at constant flow rate, for volume fractions ϕ ranging from 0 to 0.25 and for solute Péclet numbers (Pes) between 35 and 476 (mean flow velocities U between 0.004 and 0.0544 cm/s). The local time variation of the solute concentration in the measurement zone was well-fitted by the solution of the advection–dispersion equation, and a longitudinal dispersion coefficient D for the solute was measured. For Pes < 300, the values of D for flow with particles (ϕ > 0) and without particles (ϕ = 0) are equal within the measurement error. For Pes > 300, D decreases for ϕ > 0 compared to ϕ = 0. The magnitude of the reduction increases as ϕ increases, and also as Pes increases. This decrease of D in the presence of suspended macroscopic particles is analyzed in the light of theoretical, numerical and experimental results from other authors that studied suspension flow in similar geometries.
Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Suspension
Dispersion
Solute
Transport
Particles
Flow
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:11336/22858
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Experimental study of solute dispersion in macroscopic suspension flowRoht, Yanina LucreciaBoschan, AlejandroIppolito, Irene PaulaChertcoff, Ricardo HéctorSuspensionDispersionSoluteTransportParticlesFlowhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2We experimentally investigate the influence of suspended neutrally-buoyant particles on the dispersion of a passive solute in pressure-driven axial flow in a constant aperture fracture (parallel plates configuration). A dye is employed as solute in order to measure its local concentration by means of a light transmission technique. In the experiments a dyed particle suspension displaces a transparent one at constant flow rate, for volume fractions ϕ ranging from 0 to 0.25 and for solute Péclet numbers (Pes) between 35 and 476 (mean flow velocities U between 0.004 and 0.0544 cm/s). The local time variation of the solute concentration in the measurement zone was well-fitted by the solution of the advection–dispersion equation, and a longitudinal dispersion coefficient D for the solute was measured. For Pes < 300, the values of D for flow with particles (ϕ > 0) and without particles (ϕ = 0) are equal within the measurement error. For Pes > 300, D decreases for ϕ > 0 compared to ϕ = 0. The magnitude of the reduction increases as ϕ increases, and also as Pes increases. This decrease of D in the presence of suspended macroscopic particles is analyzed in the light of theoretical, numerical and experimental results from other authors that studied suspension flow in similar geometries.Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22858Roht, Yanina Lucrecia; Boschan, Alejandro; Ippolito, Irene Paula; Chertcoff, Ricardo Héctor; Experimental study of solute dispersion in macroscopic suspension flow; Elsevier; Journal of Contaminant Hydrology; 145; 11-2012; 10-160169-7722CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169772212001520info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jconhyd.2012.11.003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:46Zoai:ri.conicet.gov.ar:11336/22858instacron: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 10:00:47.15CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Experimental study of solute dispersion in macroscopic suspension flow
title Experimental study of solute dispersion in macroscopic suspension flow
spellingShingle Experimental study of solute dispersion in macroscopic suspension flow
Roht, Yanina Lucrecia
Suspension
Dispersion
Solute
Transport
Particles
Flow
title_short Experimental study of solute dispersion in macroscopic suspension flow
title_full Experimental study of solute dispersion in macroscopic suspension flow
title_fullStr Experimental study of solute dispersion in macroscopic suspension flow
title_full_unstemmed Experimental study of solute dispersion in macroscopic suspension flow
title_sort Experimental study of solute dispersion in macroscopic suspension flow
dc.creator.none.fl_str_mv Roht, Yanina Lucrecia
Boschan, Alejandro
Ippolito, Irene Paula
Chertcoff, Ricardo Héctor
author Roht, Yanina Lucrecia
author_facet Roht, Yanina Lucrecia
Boschan, Alejandro
Ippolito, Irene Paula
Chertcoff, Ricardo Héctor
author_role author
author2 Boschan, Alejandro
Ippolito, Irene Paula
Chertcoff, Ricardo Héctor
author2_role author
author
author
dc.subject.none.fl_str_mv Suspension
Dispersion
Solute
Transport
Particles
Flow
topic Suspension
Dispersion
Solute
Transport
Particles
Flow
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv We experimentally investigate the influence of suspended neutrally-buoyant particles on the dispersion of a passive solute in pressure-driven axial flow in a constant aperture fracture (parallel plates configuration). A dye is employed as solute in order to measure its local concentration by means of a light transmission technique. In the experiments a dyed particle suspension displaces a transparent one at constant flow rate, for volume fractions ϕ ranging from 0 to 0.25 and for solute Péclet numbers (Pes) between 35 and 476 (mean flow velocities U between 0.004 and 0.0544 cm/s). The local time variation of the solute concentration in the measurement zone was well-fitted by the solution of the advection–dispersion equation, and a longitudinal dispersion coefficient D for the solute was measured. For Pes < 300, the values of D for flow with particles (ϕ > 0) and without particles (ϕ = 0) are equal within the measurement error. For Pes > 300, D decreases for ϕ > 0 compared to ϕ = 0. The magnitude of the reduction increases as ϕ increases, and also as Pes increases. This decrease of D in the presence of suspended macroscopic particles is analyzed in the light of theoretical, numerical and experimental results from other authors that studied suspension flow in similar geometries.
Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chertcoff, Ricardo Héctor. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We experimentally investigate the influence of suspended neutrally-buoyant particles on the dispersion of a passive solute in pressure-driven axial flow in a constant aperture fracture (parallel plates configuration). A dye is employed as solute in order to measure its local concentration by means of a light transmission technique. In the experiments a dyed particle suspension displaces a transparent one at constant flow rate, for volume fractions ϕ ranging from 0 to 0.25 and for solute Péclet numbers (Pes) between 35 and 476 (mean flow velocities U between 0.004 and 0.0544 cm/s). The local time variation of the solute concentration in the measurement zone was well-fitted by the solution of the advection–dispersion equation, and a longitudinal dispersion coefficient D for the solute was measured. For Pes < 300, the values of D for flow with particles (ϕ > 0) and without particles (ϕ = 0) are equal within the measurement error. For Pes > 300, D decreases for ϕ > 0 compared to ϕ = 0. The magnitude of the reduction increases as ϕ increases, and also as Pes increases. This decrease of D in the presence of suspended macroscopic particles is analyzed in the light of theoretical, numerical and experimental results from other authors that studied suspension flow in similar geometries.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
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/11336/22858
Roht, Yanina Lucrecia; Boschan, Alejandro; Ippolito, Irene Paula; Chertcoff, Ricardo Héctor; Experimental study of solute dispersion in macroscopic suspension flow; Elsevier; Journal of Contaminant Hydrology; 145; 11-2012; 10-16
0169-7722
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22858
identifier_str_mv Roht, Yanina Lucrecia; Boschan, Alejandro; Ippolito, Irene Paula; Chertcoff, Ricardo Héctor; Experimental study of solute dispersion in macroscopic suspension flow; Elsevier; Journal of Contaminant Hydrology; 145; 11-2012; 10-16
0169-7722
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169772212001520
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jconhyd.2012.11.003
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 13.13397

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