A numerical approach for non-Newtonian two-phase flows using a conservative level-set method

A finite-volume based conservative level-set method is presented to numerically solve the non-Newtonian multiphase flow problems. One set of governing equations is written for the whole domain, and different phases are treated with variable material and rheological properties. Main challenging areas...

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Autores: Amani, Ahmad|||0000-0001-5197-2879, Balcázar Arciniega, Néstor|||0000-0003-0776-2086, Naseri, Alireza|||0000-0002-8650-5434, Rigola Serrano, Joaquim|||0000-0002-6685-3677
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/181365
Acceso en línea:https://hdl.handle.net/2117/181365
https://dx.doi.org/10.1016/j.cej.2019.123896
Access Level:acceso abierto
Palabra clave:Level set methods
Multiphase flow
Non-Newtonian multiphase flow
Conservative level-set method
Viscoelastic fluids
Shear-thickening
Shear-thinning
Corbes de nivell, Mètodes de
Flux multifàsic
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
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spelling A numerical approach for non-Newtonian two-phase flows using a conservative level-set methodAmani, Ahmad|||0000-0001-5197-2879Balcázar Arciniega, Néstor|||0000-0003-0776-2086Naseri, Alireza|||0000-0002-8650-5434Rigola Serrano, Joaquim|||0000-0002-6685-3677Level set methodsMultiphase flowNon-Newtonian multiphase flowConservative level-set methodViscoelastic fluidsShear-thickeningShear-thinningCorbes de nivell, Mètodes deFlux multifàsicÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsA finite-volume based conservative level-set method is presented to numerically solve the non-Newtonian multiphase flow problems. One set of governing equations is written for the whole domain, and different phases are treated with variable material and rheological properties. Main challenging areas of numerical simulation of multiphase non-Newtonian fluids, including tracking of the interface, mass conservation of the phases, small timestep problems encountered by non-Newtonian fluids, numerical instabilities regarding the high Weissenberg Number Problem (HWNP), instabilities encouraged by low solvent to polymer viscosity ratio in viscoelastic fluids and instabilities encountered by surface tensions are addressed and proper numerical treatments are provided in the proposed method. The numerical method is validated for different types of non-Newtonian fluids, e.g. shear-thinning, shear-thickening and viscoelastic fluids using structured and unstructured meshes. The proposed numerical solver is capable of readily adopting different constitutive models for viscoelastic fluids to different stabilization approaches. The constitutive equation is solved fully coupled with the flow equations. The method is validated for non-Newtonian single-phase flows against the analytical solution of start-up Poiseuille flow and the numerical solutions of well-known lid-driven Cavity problem. For multiphase flows, impact of a viscoelastic droplet problem, non-Newtonian droplet passing through a contraction-expansion, and Newtonian/non-Newtonian drop deformation suspended in Newtonian/non-Newtonian matrix imposed to shear flow are solved, and the results are compared with the related analytical, numerical and experimental data.Peer Reviewed20202020-04-0120202020-03-25journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/181365https://dx.doi.org/10.1016/j.cej.2019.123896reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 4.0http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1813652026-05-27T15:37:01Z
dc.title.none.fl_str_mv A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
title A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
spellingShingle A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
Amani, Ahmad|||0000-0001-5197-2879
Level set methods
Multiphase flow
Non-Newtonian multiphase flow
Conservative level-set method
Viscoelastic fluids
Shear-thickening
Shear-thinning
Corbes de nivell, Mètodes de
Flux multifàsic
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
title_short A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
title_full A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
title_fullStr A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
title_full_unstemmed A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
title_sort A numerical approach for non-Newtonian two-phase flows using a conservative level-set method
dc.creator.none.fl_str_mv Amani, Ahmad|||0000-0001-5197-2879
Balcázar Arciniega, Néstor|||0000-0003-0776-2086
Naseri, Alireza|||0000-0002-8650-5434
Rigola Serrano, Joaquim|||0000-0002-6685-3677
author Amani, Ahmad|||0000-0001-5197-2879
author_facet Amani, Ahmad|||0000-0001-5197-2879
Balcázar Arciniega, Néstor|||0000-0003-0776-2086
Naseri, Alireza|||0000-0002-8650-5434
Rigola Serrano, Joaquim|||0000-0002-6685-3677
author_role author
author2 Balcázar Arciniega, Néstor|||0000-0003-0776-2086
Naseri, Alireza|||0000-0002-8650-5434
Rigola Serrano, Joaquim|||0000-0002-6685-3677
author2_role author
author
author
dc.subject.none.fl_str_mv Level set methods
Multiphase flow
Non-Newtonian multiphase flow
Conservative level-set method
Viscoelastic fluids
Shear-thickening
Shear-thinning
Corbes de nivell, Mètodes de
Flux multifàsic
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
topic Level set methods
Multiphase flow
Non-Newtonian multiphase flow
Conservative level-set method
Viscoelastic fluids
Shear-thickening
Shear-thinning
Corbes de nivell, Mètodes de
Flux multifàsic
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
description A finite-volume based conservative level-set method is presented to numerically solve the non-Newtonian multiphase flow problems. One set of governing equations is written for the whole domain, and different phases are treated with variable material and rheological properties. Main challenging areas of numerical simulation of multiphase non-Newtonian fluids, including tracking of the interface, mass conservation of the phases, small timestep problems encountered by non-Newtonian fluids, numerical instabilities regarding the high Weissenberg Number Problem (HWNP), instabilities encouraged by low solvent to polymer viscosity ratio in viscoelastic fluids and instabilities encountered by surface tensions are addressed and proper numerical treatments are provided in the proposed method. The numerical method is validated for different types of non-Newtonian fluids, e.g. shear-thinning, shear-thickening and viscoelastic fluids using structured and unstructured meshes. The proposed numerical solver is capable of readily adopting different constitutive models for viscoelastic fluids to different stabilization approaches. The constitutive equation is solved fully coupled with the flow equations. The method is validated for non-Newtonian single-phase flows against the analytical solution of start-up Poiseuille flow and the numerical solutions of well-known lid-driven Cavity problem. For multiphase flows, impact of a viscoelastic droplet problem, non-Newtonian droplet passing through a contraction-expansion, and Newtonian/non-Newtonian drop deformation suspended in Newtonian/non-Newtonian matrix imposed to shear flow are solved, and the results are compared with the related analytical, numerical and experimental data.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-04-01
2020
2020-03-25
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/181365
https://dx.doi.org/10.1016/j.cej.2019.123896
url https://hdl.handle.net/2117/181365
https://dx.doi.org/10.1016/j.cej.2019.123896
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 4.0
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 4.0
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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