Verification of volume-of-fluid (VOF) simulation for thin liquid film applications

S. Balachandran, N. H. Shuaib, Hasril Hasini, Mohd Zamri Yusoff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment
Subtitle of host publicationAdvancement Towards Global Sustainability
Pages449-455
Number of pages7
DOIs
Publication statusPublished - 01 Dec 2009
Event2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability, ICEE 2009 - Malacca, Malaysia
Duration: 07 Dec 200908 Dec 2009

Other

Other2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability, ICEE 2009
CountryMalaysia
CityMalacca
Period07/12/0908/12/09

Fingerprint

Liquid films
Thin films
Fluids
Surface tension
Volume fraction
Surface reconstruction
Boundary element method
Computational fluid dynamics

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Environmental Engineering

Cite this

Balachandran, S., Shuaib, N. H., Hasini, H., & Yusoff, M. Z. (2009). Verification of volume-of-fluid (VOF) simulation for thin liquid film applications. In ICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability (pp. 449-455). [5398607] https://doi.org/10.1109/ICEENVIRON.2009.5398607
Balachandran, S. ; Shuaib, N. H. ; Hasini, Hasril ; Yusoff, Mohd Zamri. / Verification of volume-of-fluid (VOF) simulation for thin liquid film applications. ICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability. 2009. pp. 449-455
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abstract = "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.",
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Balachandran, S, Shuaib, NH, Hasini, H & Yusoff, MZ 2009, Verification of volume-of-fluid (VOF) simulation for thin liquid film applications. in ICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability., 5398607, pp. 449-455, 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability, ICEE 2009, Malacca, Malaysia, 07/12/09. https://doi.org/10.1109/ICEENVIRON.2009.5398607

Verification of volume-of-fluid (VOF) simulation for thin liquid film applications. / Balachandran, S.; Shuaib, N. H.; Hasini, Hasril; Yusoff, Mohd Zamri.

ICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability. 2009. p. 449-455 5398607.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Balachandran S, Shuaib NH, Hasini H, Yusoff MZ. Verification of volume-of-fluid (VOF) simulation for thin liquid film applications. In ICEE 2009 - Proceeding 2009 3rd International Conference on Energy and Environment: Advancement Towards Global Sustainability. 2009. p. 449-455. 5398607 https://doi.org/10.1109/ICEENVIRON.2009.5398607