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Deformed liquid marble formation : experiments and computational modelling
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Pritchard, Jeremy, Chubynsky, Mykyta, Marston, J. O. and Sprittles, James E. (2021) Deformed liquid marble formation : experiments and computational modelling. Physical Review Fluids, 6 (10). 104007. doi:10.1103/physrevfluids.6.104007 ISSN 2469-990X.
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Official URL: https://doi.org/10.1103/physrevfluids.6.104007
Abstract
The formation of deformed liquid marbles via impact of drops onto powder beds is analyzed using experimental and computational modeling approaches. Experimentally, particular attention is paid to determining a relationship between the maximum contact area of the spreading drops, which determines how much powder the drop's surface is able to harvest, and the drop's surface area when the powder (potentially) encapsulates and then immobilises (“freezes”) the surface of the drop to form a liquid marble. Comparisons between impacts on powder beds to those on rigid and impermeable superhydrophobic substrates show good agreement for a range of parameters and motivate the development of the first mathematical model for the process of liquid marble formation via drop impact. The model utilizes experimentally determined functions to capture encapsulation and freezing thresholds and accounts for the powder's influence on the drop via a surface viscous mechanism. Simulations in the volume-of-fluid framework qualitatively recover many features of the experiments and highlight physical effects that should be incorporated into future analyses.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QA Mathematics Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Fluid dynamics -- Drops -- Mathematical models, Liquids -- Simulation methods, Fluid mechanics | |||||||||||||||
| Journal or Publication Title: | Physical Review Fluids | |||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||
| ISSN: | 2469-990X | |||||||||||||||
| Official Date: | 28 October 2021 | |||||||||||||||
| Dates: |
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| Volume: | 6 | |||||||||||||||
| Number: | 10 | |||||||||||||||
| Article Number: | 104007 | |||||||||||||||
| DOI: | 10.1103/physrevfluids.6.104007 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| Copyright Holders: | © 2021 American Physical Society | |||||||||||||||
| Date of first compliant deposit: | 12 October 2021 | |||||||||||||||
| Date of first compliant Open Access: | 13 October 2021 | |||||||||||||||
| RIOXX Funder/Project Grant: |
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