Multilayer approximation for a confined fluid in a slit pore

Autores
Zarragoicoechea, Guillermo Jorge; Meyra, Ariel Germán; Kuz, Victor Alfredo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A simple Lemiard-Jones fluid confined in a slit nanopore with hard walls is studied on the basis of a multilayer structured model. Each layer is homogeneous and parallel to the walls of the pore. The Helmholtz energy of this system is constructed following van der Waals-like approximations, with the advantage that the model geometry permits to obtain analytical expressions for the integrals involved. Being the multilayer system in thermodynamic equilibrium, a system of non-linear equations is obtained for the densities and widths of the layers. A numerical solution of the equations gives the density profile and the longitudinal pressures. The results are compared with Monte Carlo simulations and with experimental data for Nitrogen, showing very good agreement.
Instituto de Física de Líquidos y Sistemas Biológicos
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
Materia
Física
Confined fluid
Slit pore
van der Waals equation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/128192
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/128192
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Multilayer approximation for a confined fluid in a slit poreZarragoicoechea, Guillermo JorgeMeyra, Ariel GermánKuz, Victor AlfredoFísicaConfined fluidSlit porevan der Waals equationA simple Lemiard-Jones fluid confined in a slit nanopore with hard walls is studied on the basis of a multilayer structured model. Each layer is homogeneous and parallel to the walls of the pore. The Helmholtz energy of this system is constructed following van der Waals-like approximations, with the advantage that the model geometry permits to obtain analytical expressions for the integrals involved. Being the multilayer system in thermodynamic equilibrium, a system of non-linear equations is obtained for the densities and widths of the layers. A numerical solution of the equations gives the density profile and the longitudinal pressures. The results are compared with Monte Carlo simulations and with experimental data for Nitrogen, showing very good agreement.Instituto de Física de Líquidos y Sistemas BiológicosComisión de Investigaciones Científicas de la provincia de Buenos Aires2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/128192enginfo:eu-repo/semantics/altIdentifier/issn/1852-4249info:eu-repo/semantics/altIdentifier/doi/10.4279/pip.020002info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:12:07Zoai:sedici.unlp.edu.ar:10915/128192Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:12:07.603SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Multilayer approximation for a confined fluid in a slit pore
title Multilayer approximation for a confined fluid in a slit pore
spellingShingle Multilayer approximation for a confined fluid in a slit pore
Zarragoicoechea, Guillermo Jorge
Física
Confined fluid
Slit pore
van der Waals equation
title_short Multilayer approximation for a confined fluid in a slit pore
title_full Multilayer approximation for a confined fluid in a slit pore
title_fullStr Multilayer approximation for a confined fluid in a slit pore
title_full_unstemmed Multilayer approximation for a confined fluid in a slit pore
title_sort Multilayer approximation for a confined fluid in a slit pore
dc.creator.none.fl_str_mv Zarragoicoechea, Guillermo Jorge
Meyra, Ariel Germán
Kuz, Victor Alfredo
author Zarragoicoechea, Guillermo Jorge
author_facet Zarragoicoechea, Guillermo Jorge
Meyra, Ariel Germán
Kuz, Victor Alfredo
author_role author
author2 Meyra, Ariel Germán
Kuz, Victor Alfredo
author2_role author
author
dc.subject.none.fl_str_mv Física
Confined fluid
Slit pore
van der Waals equation
topic Física
Confined fluid
Slit pore
van der Waals equation
dc.description.none.fl_txt_mv A simple Lemiard-Jones fluid confined in a slit nanopore with hard walls is studied on the basis of a multilayer structured model. Each layer is homogeneous and parallel to the walls of the pore. The Helmholtz energy of this system is constructed following van der Waals-like approximations, with the advantage that the model geometry permits to obtain analytical expressions for the integrals involved. Being the multilayer system in thermodynamic equilibrium, a system of non-linear equations is obtained for the densities and widths of the layers. A numerical solution of the equations gives the density profile and the longitudinal pressures. The results are compared with Monte Carlo simulations and with experimental data for Nitrogen, showing very good agreement.
Instituto de Física de Líquidos y Sistemas Biológicos
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
description A simple Lemiard-Jones fluid confined in a slit nanopore with hard walls is studied on the basis of a multilayer structured model. Each layer is homogeneous and parallel to the walls of the pore. The Helmholtz energy of this system is constructed following van der Waals-like approximations, with the advantage that the model geometry permits to obtain analytical expressions for the integrals involved. Being the multilayer system in thermodynamic equilibrium, a system of non-linear equations is obtained for the densities and widths of the layers. A numerical solution of the equations gives the density profile and the longitudinal pressures. The results are compared with Monte Carlo simulations and with experimental data for Nitrogen, showing very good agreement.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/128192
url http://sedici.unlp.edu.ar/handle/10915/128192
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1852-4249
info:eu-repo/semantics/altIdentifier/doi/10.4279/pip.020002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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