Droplet migration: Quantitative comparisons with experiment
An important practical feature of simulating droplet migration computationally, using the lubrication approach coupled to a disjoining pressure term, is the need to specify the thickness, H ∗ , of a thin energetically stable wetting layer, or precursor film, over the entire substrate. The neces...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences & Springer-Verlag
2009
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/202/ http://eprints.intimal.edu.my/202/1/3.pdf |
| _version_ | 1848766420033208320 |
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| author | Koh, Y. Y. Lee, Y. C. Gaskell, P. H. Jimack, P. K. Thompson, H. M. |
| author_facet | Koh, Y. Y. Lee, Y. C. Gaskell, P. H. Jimack, P. K. Thompson, H. M. |
| author_sort | Koh, Y. Y. |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | An important practical feature of simulating droplet migration computationally,
using the lubrication approach coupled to a disjoining pressure term, is
the need to specify the thickness, H
∗
, of a thin energetically stable wetting layer,
or precursor film, over the entire substrate. The necessity that H
∗
be small in
order to improve the accuracy of predicted droplet migration speeds, allied to the
need for mesh resolution of the same order as H
∗
near wetting lines, increases the
computational demands significantly. To date no systematic investigation of these
requirements on the quantitative agreement between prediction and experimental
observation has been reported. Accordingly, this paper combines highly efficient
Multigrid methods for solving the associated lubrication equations with a parallel
computing framework, to explore the effect of H
∗
and mesh resolution. The solutions
generated are compared with recent experimentally determined migration
speeds for droplet flows down an inclined plane. |
| first_indexed | 2025-11-14T11:50:51Z |
| format | Article |
| id | intimal-202 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:50:51Z |
| publishDate | 2009 |
| publisher | EDP Sciences & Springer-Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-2022016-04-25T05:49:13Z http://eprints.intimal.edu.my/202/ Droplet migration: Quantitative comparisons with experiment Koh, Y. Y. Lee, Y. C. Gaskell, P. H. Jimack, P. K. Thompson, H. M. QC Physics An important practical feature of simulating droplet migration computationally, using the lubrication approach coupled to a disjoining pressure term, is the need to specify the thickness, H ∗ , of a thin energetically stable wetting layer, or precursor film, over the entire substrate. The necessity that H ∗ be small in order to improve the accuracy of predicted droplet migration speeds, allied to the need for mesh resolution of the same order as H ∗ near wetting lines, increases the computational demands significantly. To date no systematic investigation of these requirements on the quantitative agreement between prediction and experimental observation has been reported. Accordingly, this paper combines highly efficient Multigrid methods for solving the associated lubrication equations with a parallel computing framework, to explore the effect of H ∗ and mesh resolution. The solutions generated are compared with recent experimentally determined migration speeds for droplet flows down an inclined plane. EDP Sciences & Springer-Verlag 2009 Article PeerReviewed text en http://eprints.intimal.edu.my/202/1/3.pdf Koh, Y. Y. and Lee, Y. C. and Gaskell, P. H. and Jimack, P. K. and Thompson, H. M. (2009) Droplet migration: Quantitative comparisons with experiment. European Physical Journal: Special Topics, 166 (1). pp. 117-120. ISSN 1951-6401 10.1140/epjst/e2009-00890-2 |
| spellingShingle | QC Physics Koh, Y. Y. Lee, Y. C. Gaskell, P. H. Jimack, P. K. Thompson, H. M. Droplet migration: Quantitative comparisons with experiment |
| title | Droplet migration: Quantitative comparisons
with experiment |
| title_full | Droplet migration: Quantitative comparisons
with experiment |
| title_fullStr | Droplet migration: Quantitative comparisons
with experiment |
| title_full_unstemmed | Droplet migration: Quantitative comparisons
with experiment |
| title_short | Droplet migration: Quantitative comparisons
with experiment |
| title_sort | droplet migration: quantitative comparisons
with experiment |
| topic | QC Physics |
| url | http://eprints.intimal.edu.my/202/ http://eprints.intimal.edu.my/202/ http://eprints.intimal.edu.my/202/1/3.pdf |