Effects of a microscale ridge on dynamic wetting during drop impact

dc.contributor.authorRashidian H
dc.contributor.authorBroom M
dc.contributor.authorWillmott GR
dc.contributor.authorSellier M
dc.date.accessioned2021-03-26T03:11:35Z
dc.date.available2021-03-26T03:11:35Z
dc.date.issued2020en
dc.date.updated2020-07-28T03:00:32Z
dc.description.abstractHigh-speed imaging of water drop impacts on a polymer surface have been used alongside two-dimensional Lattice Boltzmann simulations to investigate the conditions under which a spreading lamella submerges a small surface ridge. Three basic outcomes have been observed when the lamella comes into contact with the ridge: pinning, wetting and splashing. The effects of Weber number and the dimensionless distance between the impact point and the ridge are investigated, and a phase portrait of the different wetting outcomes is presented. For each of the potential outcomes, a side-by-side comparison of experimental and numerical results can be made. An energy balance approach is used to study the transitions between the different outcomes.en
dc.identifier.citationRashidian H, Broom M, Willmott GR, Sellier M (2020). Effects of a microscale ridge on dynamic wetting during drop impact. Journal of the Royal Society of New Zealand. 50(4). 523-537.en
dc.identifier.doihttp://doi.org/10.1080/03036758.2019.1706587
dc.identifier.issn0303-6758
dc.identifier.issn1175-8899
dc.identifier.urihttps://hdl.handle.net/10092/101729
dc.languageen
dc.language.isoen
dc.publisherInforma UK Limiteden
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subjectDrop impacten
dc.subjectSurface ridgeen
dc.subjectDrop wettingen
dc.subjectHigh-speed photographyen
dc.subjectLattice Boltzmann methoden
dc.titleEffects of a microscale ridge on dynamic wetting during drop impacten
dc.typeJournal Articleen
uc.collegeFaculty of Engineering
uc.departmentMechanical Engineering
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