The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects
The effect of the thermal properties of the system on the lifetime of an evaporating sessile droplet of water is analysed using a fully coupled model which involves determining the temperature of the droplet, the substrate and the atmosphere. The evolutions, and hence the lifetimes, of droplets of w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/6/4/141 |
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| author | Feargus G. H. Schofield David Pritchard Stephen K. Wilson Khellil Sefiane |
| author_facet | Feargus G. H. Schofield David Pritchard Stephen K. Wilson Khellil Sefiane |
| author_sort | Feargus G. H. Schofield |
| collection | DOAJ |
| description | The effect of the thermal properties of the system on the lifetime of an evaporating sessile droplet of water is analysed using a fully coupled model which involves determining the temperature of the droplet, the substrate and the atmosphere. The evolutions, and hence the lifetimes, of droplets of water evaporating in both of the extreme modes are calculated. In particular, it is shown how the lifetimes of droplets of water can be strongly influenced by thermal effects. Droplets with larger initial contact angles or on less conductive substrates generally have longer lifetimes than those with smaller initial contact angles or on more conductive substrates, and the physical mechanism by which the thermal properties of the system influence the evaporation can be understood in terms of the thermal anchoring between the droplet and the lower surface of the substrate. |
| first_indexed | 2024-03-10T12:38:00Z |
| format | Article |
| id | doaj.art-c76d53bb02e64221b09241703442421c |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-03-10T12:38:00Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-c76d53bb02e64221b09241703442421c2023-11-21T14:06:24ZengMDPI AGFluids2311-55212021-04-016414110.3390/fluids6040141The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal EffectsFeargus G. H. Schofield0David Pritchard1Stephen K. Wilson2Khellil Sefiane3Department of Mathematics and Statistics, University of Strathclyde, 26 Richmond Street, Glasgow G1 1XH, Scotland, UKDepartment of Mathematics and Statistics, University of Strathclyde, 26 Richmond Street, Glasgow G1 1XH, Scotland, UKDepartment of Mathematics and Statistics, University of Strathclyde, 26 Richmond Street, Glasgow G1 1XH, Scotland, UKInstitute for Multiscale Thermofluids, School of Engineering, The University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, The King’s Buildings, Edinburgh EH9 3FD, Scotland, UKThe effect of the thermal properties of the system on the lifetime of an evaporating sessile droplet of water is analysed using a fully coupled model which involves determining the temperature of the droplet, the substrate and the atmosphere. The evolutions, and hence the lifetimes, of droplets of water evaporating in both of the extreme modes are calculated. In particular, it is shown how the lifetimes of droplets of water can be strongly influenced by thermal effects. Droplets with larger initial contact angles or on less conductive substrates generally have longer lifetimes than those with smaller initial contact angles or on more conductive substrates, and the physical mechanism by which the thermal properties of the system influence the evaporation can be understood in terms of the thermal anchoring between the droplet and the lower surface of the substrate.https://www.mdpi.com/2311-5521/6/4/141sessile dropletevaporationlifetimesthermal effectssubstrate conductivitythermal anchoring |
| spellingShingle | Feargus G. H. Schofield David Pritchard Stephen K. Wilson Khellil Sefiane The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects Fluids sessile droplet evaporation lifetimes thermal effects substrate conductivity thermal anchoring |
| title | The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects |
| title_full | The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects |
| title_fullStr | The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects |
| title_full_unstemmed | The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects |
| title_short | The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects |
| title_sort | lifetimes of evaporating sessile droplets of water can be strongly influenced by thermal effects |
| topic | sessile droplet evaporation lifetimes thermal effects substrate conductivity thermal anchoring |
| url | https://www.mdpi.com/2311-5521/6/4/141 |
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