Effects of a microscale ridge on dynamic wetting during drop impact
dc.contributor.author | Rashidian H | |
dc.contributor.author | Broom M | |
dc.contributor.author | Willmott GR | |
dc.contributor.author | Sellier M | |
dc.date.accessioned | 2021-03-26T03:11:35Z | |
dc.date.available | 2021-03-26T03:11:35Z | |
dc.date.issued | 2020 | en |
dc.date.updated | 2020-07-28T03:00:32Z | |
dc.description.abstract | High-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.citation | Rashidian 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.doi | http://doi.org/10.1080/03036758.2019.1706587 | |
dc.identifier.issn | 0303-6758 | |
dc.identifier.issn | 1175-8899 | |
dc.identifier.uri | https://hdl.handle.net/10092/101729 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Informa UK Limited | en |
dc.rights | All rights reserved unless otherwise stated | en |
dc.rights.uri | http://hdl.handle.net/10092/17651 | en |
dc.subject | Drop impact | en |
dc.subject | Surface ridge | en |
dc.subject | Drop wetting | en |
dc.subject | High-speed photography | en |
dc.subject | Lattice Boltzmann method | en |
dc.title | Effects of a microscale ridge on dynamic wetting during drop impact | en |
dc.type | Journal Article | en |
uc.college | Faculty of Engineering | |
uc.department | Mechanical Engineering |
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