Verification of volume-of-fluid (VOF) simulation for thin liquid film applications
This paper describes the application of the built-in Volume-of-Fluid (VOF) model in the commercial Computational Fluid Dynamics (CFD) software FLUENTTM and the verification of its accuracy. As the VOF model is based on the field volume fraction calculations and surface reconstruction methods, in whi...
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my.uniten.dspace-296712023-12-28T15:30:43Z Verification of volume-of-fluid (VOF) simulation for thin liquid film applications Balachandran S. Shuaib N.H. Hasini H. Yusoff M.Z. 57198136539 13907934500 6507435998 7003976733 Computational fluid dynamics (CFD) Thin film flows Volume of fluid (VOF) Boundary element method Capillarity Cavity resonators Computational fluid dynamics Flow patterns Fluid dynamics Liquid films Surface chemistry Surface properties Surface tension Sustainable development Thin film devices Thin films Titration Two dimensional Verification Wetting Explicit surface Free surfaces Grid refinement Interface velocity Other applications Reconstructed surfaces Rectangular cavity Surface profiles Surface tension coefficient Surface tension values Thin film flow Thin liquid film VOF model Volume of fluid (VOF) Volume of fluids Fluids This paper describes the application of the built-in Volume-of-Fluid (VOF) model in the commercial Computational Fluid Dynamics (CFD) software FLUENTTM and the verification of its accuracy. As the VOF model is based on the field volume fraction calculations and surface reconstruction methods, in which a free surface is not explicitly tracked, the aim was to verify that a reconstructed surface obtained by VOF simulation is representative of a real surface. For this purpose, various cases of a thin liquid film flowing into rectangular cavities were simulated and the resulting surface profiles analyzed in terms of the normal velocity of the constructed surface, which should be zero in a real surface. Both the cases of small and large surface tension coefficients were simulated and the results showed that the VOF model is capable of generating surface profiles with reasonably accurate normal velocity condition for the cases with small or no surface tension. For high surface tension values, the existence of spurious interface velocity as previously reported in the literature was confirmed. Comparisons of the VOF-calculated surface profiles with the ones obtained using the explicit surface tracking algorithms such as the Boundary Element Method (BEM) reported in the literature showed that the VOF model is able to produce the expected profiles of thin liquid film flowing a two-dimensional rectangular cavity and thus can be considered for simulation of other applications involving thin liquid film flows, provided the grid refinement based on the volume fraction gradient is applied. �2009 IEEE. Final 2023-12-28T07:30:43Z 2023-12-28T07:30:43Z 2009 Conference paper 10.1109/ICEENVIRON.2009.5398607 2-s2.0-77949582215 https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949582215&doi=10.1109%2fICEENVIRON.2009.5398607&partnerID=40&md5=5adb72cca246803b41a8453f757e490e https://irepository.uniten.edu.my/handle/123456789/29671 5398607 449 455 Scopus |
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Computational fluid dynamics (CFD) Thin film flows Volume of fluid (VOF) Boundary element method Capillarity Cavity resonators Computational fluid dynamics Flow patterns Fluid dynamics Liquid films Surface chemistry Surface properties Surface tension Sustainable development Thin film devices Thin films Titration Two dimensional Verification Wetting Explicit surface Free surfaces Grid refinement Interface velocity Other applications Reconstructed surfaces Rectangular cavity Surface profiles Surface tension coefficient Surface tension values Thin film flow Thin liquid film VOF model Volume of fluid (VOF) Volume of fluids Fluids |
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Computational fluid dynamics (CFD) Thin film flows Volume of fluid (VOF) Boundary element method Capillarity Cavity resonators Computational fluid dynamics Flow patterns Fluid dynamics Liquid films Surface chemistry Surface properties Surface tension Sustainable development Thin film devices Thin films Titration Two dimensional Verification Wetting Explicit surface Free surfaces Grid refinement Interface velocity Other applications Reconstructed surfaces Rectangular cavity Surface profiles Surface tension coefficient Surface tension values Thin film flow Thin liquid film VOF model Volume of fluid (VOF) Volume of fluids Fluids Balachandran S. Shuaib N.H. Hasini H. Yusoff M.Z. Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
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This paper describes the application of the built-in Volume-of-Fluid (VOF) model in the commercial Computational Fluid Dynamics (CFD) software FLUENTTM and the verification of its accuracy. As the VOF model is based on the field volume fraction calculations and surface reconstruction methods, in which a free surface is not explicitly tracked, the aim was to verify that a reconstructed surface obtained by VOF simulation is representative of a real surface. For this purpose, various cases of a thin liquid film flowing into rectangular cavities were simulated and the resulting surface profiles analyzed in terms of the normal velocity of the constructed surface, which should be zero in a real surface. Both the cases of small and large surface tension coefficients were simulated and the results showed that the VOF model is capable of generating surface profiles with reasonably accurate normal velocity condition for the cases with small or no surface tension. For high surface tension values, the existence of spurious interface velocity as previously reported in the literature was confirmed. Comparisons of the VOF-calculated surface profiles with the ones obtained using the explicit surface tracking algorithms such as the Boundary Element Method (BEM) reported in the literature showed that the VOF model is able to produce the expected profiles of thin liquid film flowing a two-dimensional rectangular cavity and thus can be considered for simulation of other applications involving thin liquid film flows, provided the grid refinement based on the volume fraction gradient is applied. �2009 IEEE. |
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57198136539 |
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57198136539 Balachandran S. Shuaib N.H. Hasini H. Yusoff M.Z. |
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Conference paper |
author |
Balachandran S. Shuaib N.H. Hasini H. Yusoff M.Z. |
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Balachandran S. |
title |
Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
title_short |
Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
title_full |
Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
title_fullStr |
Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
title_full_unstemmed |
Verification of volume-of-fluid (VOF) simulation for thin liquid film applications |
title_sort |
verification of volume-of-fluid (vof) simulation for thin liquid film applications |
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2023 |
_version_ |
1806428308864237568 |
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13.222552 |