Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall

In this work, a numerical investigation of the interaction of two similar sized bubbles near the wall was carried out based on the compressible Volume of Fluid method. The numerical accuracy was confirmed by conducting the independence study of computational domain and mesh resolution, and also vali...

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Detalles Bibliográficos
Autores: Geng, Linlin, Zhang, Qinghua, Fang, Haiyuan, Yang, Mengzi, Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749, Zhang, Desheng
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:2117/423323
Acceso en línea:https://hdl.handle.net/2117/423323
https://dx.doi.org/10.1016/j.ces.2024.121115
Access Level:acceso embargado
Palabra clave:Two similar sized bubbles
Bubble morphology
Micro-jet
Bubble lifespan
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
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spelling Numerical analysis of the dynamics of two similar sized bubbles near a rigid wallGeng, LinlinZhang, QinghuaFang, HaiyuanYang, MengziEscaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749Zhang, DeshengTwo similar sized bubblesBubble morphologyMicro-jetBubble lifespanÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsIn this work, a numerical investigation of the interaction of two similar sized bubbles near the wall was carried out based on the compressible Volume of Fluid method. The numerical accuracy was confirmed by conducting the independence study of computational domain and mesh resolution, and also validated by single and two bubbles experiment results. After investigating the main collapsing characteristics (bubble morphology, lifespan, the speed and direction of microjet) of near-wall bubble under single and two-bubble configurations, it is found that the two-bubble configuration significantly changed the bubble morphology and extended their lifespan, and the influence of the upper bubble on the lifespan of the near-wall bubble tends to be consistent under the same bubble–bubble distance when the stand-off distance is larger than two. Moreover, the speed of the microjet in near-wall bubble was increased comparing to single bubble configuration, and this increment decreases with the increase of bubble–bubble distance. In addition, a critical distance ratio was found, below which the direction of micro-jet is away from the wall, and beyond which the micro-jet is directed towards the wall.20252025-02-1520252025-02-0420262026-12-24journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/423323https://dx.doi.org/10.1016/j.ces.2024.121115reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengembargoed accesshttp://purl.org/coar/access_right/c_f1cfAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/embargoedAccessoai:upcommons.upc.edu:2117/4233232026-05-27T15:37:01Z
dc.title.none.fl_str_mv Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
title Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
spellingShingle Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
Geng, Linlin
Two similar sized bubbles
Bubble morphology
Micro-jet
Bubble lifespan
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
title_short Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
title_full Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
title_fullStr Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
title_full_unstemmed Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
title_sort Numerical analysis of the dynamics of two similar sized bubbles near a rigid wall
dc.creator.none.fl_str_mv Geng, Linlin
Zhang, Qinghua
Fang, Haiyuan
Yang, Mengzi
Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
Zhang, Desheng
author Geng, Linlin
author_facet Geng, Linlin
Zhang, Qinghua
Fang, Haiyuan
Yang, Mengzi
Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
Zhang, Desheng
author_role author
author2 Zhang, Qinghua
Fang, Haiyuan
Yang, Mengzi
Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
Zhang, Desheng
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Two similar sized bubbles
Bubble morphology
Micro-jet
Bubble lifespan
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
topic Two similar sized bubbles
Bubble morphology
Micro-jet
Bubble lifespan
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
description In this work, a numerical investigation of the interaction of two similar sized bubbles near the wall was carried out based on the compressible Volume of Fluid method. The numerical accuracy was confirmed by conducting the independence study of computational domain and mesh resolution, and also validated by single and two bubbles experiment results. After investigating the main collapsing characteristics (bubble morphology, lifespan, the speed and direction of microjet) of near-wall bubble under single and two-bubble configurations, it is found that the two-bubble configuration significantly changed the bubble morphology and extended their lifespan, and the influence of the upper bubble on the lifespan of the near-wall bubble tends to be consistent under the same bubble–bubble distance when the stand-off distance is larger than two. Moreover, the speed of the microjet in near-wall bubble was increased comparing to single bubble configuration, and this increment decreases with the increase of bubble–bubble distance. In addition, a critical distance ratio was found, below which the direction of micro-jet is away from the wall, and beyond which the micro-jet is directed towards the wall.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-02-15
2025
2025-02-04
2026
2026-12-24
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/2117/423323
https://dx.doi.org/10.1016/j.ces.2024.121115
url https://hdl.handle.net/2117/423323
https://dx.doi.org/10.1016/j.ces.2024.121115
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv embargoedAccess
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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