Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow
When a hydrogen or oxygen bubble is created on the surface of an electrode, a micro-convective vortex flow due to the Marangoni effect is generated at the bottom of the bubble in contact with the electrode. In order to study such a phenomenon numerically, it is necessary to be able to simulate the s...
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MDPI AG
2022-08-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/7/8/262 |
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| author | Florent Struyven Zhenyi Guo David F. Fletcher Myeongsub (Mike) Kim Rosalinda Inguanta Mathieu Sellier Philippe Mandin |
| author_facet | Florent Struyven Zhenyi Guo David F. Fletcher Myeongsub (Mike) Kim Rosalinda Inguanta Mathieu Sellier Philippe Mandin |
| author_sort | Florent Struyven |
| collection | DOAJ |
| description | When a hydrogen or oxygen bubble is created on the surface of an electrode, a micro-convective vortex flow due to the Marangoni effect is generated at the bottom of the bubble in contact with the electrode. In order to study such a phenomenon numerically, it is necessary to be able to simulate the surface tension variations along with a liquid-gas interface, to integrate the mass transfer across the interface from the dissolved species present in the electrolyte to the gas phase, and to take into account the moving contact line. Eulerian methods seem to have the potential to solve this modeling. However, the use of the continuous surface force (CSF) model in the volume of fluid (VOF) framework is known to introduce non-physical velocities, called spurious currents. This paper presents an alternative model based on the height function (HF) approach. The use of this method limits spurious currents and makes the VOF methodology suitable for studying Marangoni currents along with the interface of an electrogenerated bubble. |
| first_indexed | 2024-03-09T04:26:48Z |
| format | Article |
| id | doaj.art-6982352b66034614905d692e543b127e |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-03-09T04:26:48Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-6982352b66034614905d692e543b127e2023-12-03T13:39:01ZengMDPI AGFluids2311-55212022-08-017826210.3390/fluids7080262Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection FlowFlorent Struyven0Zhenyi Guo1David F. Fletcher2Myeongsub (Mike) Kim3Rosalinda Inguanta4Mathieu Sellier5Philippe Mandin6Institut de Recherche Dupuy de Lôme, UMR CNRS 6027, 56100 Lorient, FranceSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, AustraliaSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, AustraliaDepartment of Ocean and Mechanical Engineering, Florida Atlantic University, Boca Raton, FL 33431, USADipartimento di Ingegneria, Laboratorio di Chimica Fisica Applicata, Viale delle Scienze ed. 6, 90128 Palermo, ItalyDepartment of Mechanical Engineering, University of Canterbury, Christchurch 8041, New ZealandInstitut de Recherche Dupuy de Lôme, UMR CNRS 6027, 56100 Lorient, FranceWhen a hydrogen or oxygen bubble is created on the surface of an electrode, a micro-convective vortex flow due to the Marangoni effect is generated at the bottom of the bubble in contact with the electrode. In order to study such a phenomenon numerically, it is necessary to be able to simulate the surface tension variations along with a liquid-gas interface, to integrate the mass transfer across the interface from the dissolved species present in the electrolyte to the gas phase, and to take into account the moving contact line. Eulerian methods seem to have the potential to solve this modeling. However, the use of the continuous surface force (CSF) model in the volume of fluid (VOF) framework is known to introduce non-physical velocities, called spurious currents. This paper presents an alternative model based on the height function (HF) approach. The use of this method limits spurious currents and makes the VOF methodology suitable for studying Marangoni currents along with the interface of an electrogenerated bubble.https://www.mdpi.com/2311-5521/7/8/262electrogenerated bubblespurious currentsVOFheight functionCFDMarangoni convection |
| spellingShingle | Florent Struyven Zhenyi Guo David F. Fletcher Myeongsub (Mike) Kim Rosalinda Inguanta Mathieu Sellier Philippe Mandin Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow Fluids electrogenerated bubble spurious currents VOF height function CFD Marangoni convection |
| title | Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow |
| title_full | Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow |
| title_fullStr | Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow |
| title_full_unstemmed | Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow |
| title_short | Suitability of the VOF Approach to Model an Electrogenerated Bubble with Marangoni Micro-Convection Flow |
| title_sort | suitability of the vof approach to model an electrogenerated bubble with marangoni micro convection flow |
| topic | electrogenerated bubble spurious currents VOF height function CFD Marangoni convection |
| url | https://www.mdpi.com/2311-5521/7/8/262 |
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