Numerical simulation of binary convection within the Soret regime in a tilted cylinder

This study computationally investigates the time-dependent patterns emerging in the Soret regime for binary fluid convection in slightly inclined cylinders heated from below, with a particular focus on positive Soret coefficient thermophobic mixtures (S T > 0) and aspect ratios G = 5.2, G = 5.3,...

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Autores: Alonso Maleta, María Aránzazu|||0000-0002-7228-8539, Mercader Calvo, María Isabel|||0000-0002-0749-0263, Batiste Boleda, Oriol|||0000-0003-0904-6323, Meseguer Serrano, Álvaro|||0000-0002-2022-2001
Tipo de recurso: artículo
Fecha de publicación:2025
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:2117/428659
Acceso en línea:https://hdl.handle.net/2117/428659
https://dx.doi.org/10.1515/jnet-2024-0064
Access Level:acceso abierto
Palabra clave:Direct numerical simulation
Inclined cylindrical cells
Positive Soret coefficient mixtures
Time-dependent binary fluid convection
Thermodiffusion
Àrees temàtiques de la UPC::Física::Física de fluids
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spelling Numerical simulation of binary convection within the Soret regime in a tilted cylinderAlonso Maleta, María Aránzazu|||0000-0002-7228-8539Mercader Calvo, María Isabel|||0000-0002-0749-0263Batiste Boleda, Oriol|||0000-0003-0904-6323Meseguer Serrano, Álvaro|||0000-0002-2022-2001Direct numerical simulationInclined cylindrical cellsPositive Soret coefficient mixturesTime-dependent binary fluid convectionThermodiffusionÀrees temàtiques de la UPC::Física::Física de fluidsThis study computationally investigates the time-dependent patterns emerging in the Soret regime for binary fluid convection in slightly inclined cylinders heated from below, with a particular focus on positive Soret coefficient thermophobic mixtures (S T > 0) and aspect ratios G = 5.2, G = 5.3, and G = 5.4. By varying the Rayleigh number (Ra) and smoothly adjusting its increments, we capture a range of spatio-temporal behaviours, revealing the coexistence of large-scale shear flows (LSF) and superhighway convection (SHC) patterns. SHC-like structures, characterised by a high base frequency, involve oscillating plumes arranged in adjacent lanes, moving in opposite directions along the inclination. Remarkably, this frequency remains nearly constant across different Ra values. Some of the observed coherent structures, such as periodic and modulated solutions, exhibit equivariance with respect to some elements of the D 2 symmetry group inherent to the physical system. In the case of G = 5.4, we identify three-frequency orbits, with modulations up to two orders of magnitude smaller than the base frequency. The observed dynamics is highly sensitive to small variations of G, with different patterns being stabilized depending on the aspect ratio of the cell. The bifurcation scenarios are complex and case-specific, and their precise determination is computationally demanding.This research is supported by the Ministerio de Ciencia, Innovación y Universidades (Agencia Estatal de Investigación, project nos. PID2020-114043GB-I00 (MCIN/AEI/10.13039/501100011033) and PID2023-150029NB-I00 (MCIN/AEI/10.13039/501100011033/feder,ue).Peer ReviewedDe Gruyter20252025-02-1120252025-04-29journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/428659https://dx.doi.org/10.1515/jnet-2024-0064reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-114043GB-I00 COMPUTACION DE ALTO RENDIMIENTO DE ESTRUCTURAS HIDRODINAMICAS COHERENTESAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-150029NB-I00 DECODIFICACION DE LA FRONTERA DEL CAOS EN PROBLEMAS DE CONVECCION TERMICA, CIZALLADURA Y CENTRIFUGOS, CON APLICACION A FLUJOS AEROESPACIALESAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-114043GB-I00 COMPUTACION DE ALTO RENDIMIENTO DE ESTRUCTURAS HIDRODINAMICAS COHERENTESAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-150029NB-I00 DECODIFICACION DE LA FRONTERA DEL CAOS EN PROBLEMAS DE CONVECCION TERMICA, CIZALLADURA Y CENTRIFUGOS, CON APLICACION A FLUJOS AEROESPACIALESopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4286592026-05-27T15:37:01Z
dc.title.none.fl_str_mv Numerical simulation of binary convection within the Soret regime in a tilted cylinder
title Numerical simulation of binary convection within the Soret regime in a tilted cylinder
spellingShingle Numerical simulation of binary convection within the Soret regime in a tilted cylinder
Alonso Maleta, María Aránzazu|||0000-0002-7228-8539
Direct numerical simulation
Inclined cylindrical cells
Positive Soret coefficient mixtures
Time-dependent binary fluid convection
Thermodiffusion
Àrees temàtiques de la UPC::Física::Física de fluids
title_short Numerical simulation of binary convection within the Soret regime in a tilted cylinder
title_full Numerical simulation of binary convection within the Soret regime in a tilted cylinder
title_fullStr Numerical simulation of binary convection within the Soret regime in a tilted cylinder
title_full_unstemmed Numerical simulation of binary convection within the Soret regime in a tilted cylinder
title_sort Numerical simulation of binary convection within the Soret regime in a tilted cylinder
dc.creator.none.fl_str_mv Alonso Maleta, María Aránzazu|||0000-0002-7228-8539
Mercader Calvo, María Isabel|||0000-0002-0749-0263
Batiste Boleda, Oriol|||0000-0003-0904-6323
Meseguer Serrano, Álvaro|||0000-0002-2022-2001
author Alonso Maleta, María Aránzazu|||0000-0002-7228-8539
author_facet Alonso Maleta, María Aránzazu|||0000-0002-7228-8539
Mercader Calvo, María Isabel|||0000-0002-0749-0263
Batiste Boleda, Oriol|||0000-0003-0904-6323
Meseguer Serrano, Álvaro|||0000-0002-2022-2001
author_role author
author2 Mercader Calvo, María Isabel|||0000-0002-0749-0263
Batiste Boleda, Oriol|||0000-0003-0904-6323
Meseguer Serrano, Álvaro|||0000-0002-2022-2001
author2_role author
author
author
dc.subject.none.fl_str_mv Direct numerical simulation
Inclined cylindrical cells
Positive Soret coefficient mixtures
Time-dependent binary fluid convection
Thermodiffusion
Àrees temàtiques de la UPC::Física::Física de fluids
topic Direct numerical simulation
Inclined cylindrical cells
Positive Soret coefficient mixtures
Time-dependent binary fluid convection
Thermodiffusion
Àrees temàtiques de la UPC::Física::Física de fluids
description This study computationally investigates the time-dependent patterns emerging in the Soret regime for binary fluid convection in slightly inclined cylinders heated from below, with a particular focus on positive Soret coefficient thermophobic mixtures (S T > 0) and aspect ratios G = 5.2, G = 5.3, and G = 5.4. By varying the Rayleigh number (Ra) and smoothly adjusting its increments, we capture a range of spatio-temporal behaviours, revealing the coexistence of large-scale shear flows (LSF) and superhighway convection (SHC) patterns. SHC-like structures, characterised by a high base frequency, involve oscillating plumes arranged in adjacent lanes, moving in opposite directions along the inclination. Remarkably, this frequency remains nearly constant across different Ra values. Some of the observed coherent structures, such as periodic and modulated solutions, exhibit equivariance with respect to some elements of the D 2 symmetry group inherent to the physical system. In the case of G = 5.4, we identify three-frequency orbits, with modulations up to two orders of magnitude smaller than the base frequency. The observed dynamics is highly sensitive to small variations of G, with different patterns being stabilized depending on the aspect ratio of the cell. The bifurcation scenarios are complex and case-specific, and their precise determination is computationally demanding.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-02-11
2025
2025-04-29
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/2117/428659
https://dx.doi.org/10.1515/jnet-2024-0064
url https://hdl.handle.net/2117/428659
https://dx.doi.org/10.1515/jnet-2024-0064
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-114043GB-I00 COMPUTACION DE ALTO RENDIMIENTO DE ESTRUCTURAS HIDRODINAMICAS COHERENTES
Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-150029NB-I00 DECODIFICACION DE LA FRONTERA DEL CAOS EN PROBLEMAS DE CONVECCION TERMICA, CIZALLADURA Y CENTRIFUGOS, CON APLICACION A FLUJOS AEROESPACIALES
Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-114043GB-I00 COMPUTACION DE ALTO RENDIMIENTO DE ESTRUCTURAS HIDRODINAMICAS COHERENTES
Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-150029NB-I00 DECODIFICACION DE LA FRONTERA DEL CAOS EN PROBLEMAS DE CONVECCION TERMICA, CIZALLADURA Y CENTRIFUGOS, CON APLICACION A FLUJOS AEROESPACIALES
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv De Gruyter
publisher.none.fl_str_mv De Gruyter
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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score 15.811543

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