Levitation of fizzy drops
As first described by Leidenfrost, liquid droplets levitate over their own vapor when placed on a sufficiently hot substrate. The Leidenfrost effect not only confers remarkable properties such as mechanical and thermal insulation, zero adhesion, and extreme mobility but also requires a high energeti...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/133254 |
| _version_ | 1826205414670204928 |
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| author | Panchanathan, Divya Bourrianne, Philippe Nicollier, Philippe Chottratanapituk, Abhijatmedhi Varanasi, Kripa K McKinley, Gareth H |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Panchanathan, Divya Bourrianne, Philippe Nicollier, Philippe Chottratanapituk, Abhijatmedhi Varanasi, Kripa K McKinley, Gareth H |
| author_sort | Panchanathan, Divya |
| collection | MIT |
| description | As first described by Leidenfrost, liquid droplets levitate over their own vapor when placed on a sufficiently hot substrate. The Leidenfrost effect not only confers remarkable properties such as mechanical and thermal insulation, zero adhesion, and extreme mobility but also requires a high energetic thermal cost. We describe here a previously unexplored approach using active liquids able to sustain levitation in the absence of any external forcing at ambient temperature. We focus on the particular case of carbonated water placed on a superhydrophobic solid and demonstrate how millimetric fizzy drops self-generate a gas cushion that provides levitation on time scales on the order of a minute. Last, we generalize this new regime to different kinds of chemically reactive droplets able to jump from the Cassie-Baxter state to a levitating regime, paving the way to the levitation of nonvolatile liquids. |
| first_indexed | 2024-09-23T13:12:19Z |
| format | Article |
| id | mit-1721.1/133254 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:12:19Z |
| publishDate | 2021 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | mit-1721.1/1332542023-02-23T20:58:06Z Levitation of fizzy drops Panchanathan, Divya Bourrianne, Philippe Nicollier, Philippe Chottratanapituk, Abhijatmedhi Varanasi, Kripa K McKinley, Gareth H Massachusetts Institute of Technology. Department of Mechanical Engineering As first described by Leidenfrost, liquid droplets levitate over their own vapor when placed on a sufficiently hot substrate. The Leidenfrost effect not only confers remarkable properties such as mechanical and thermal insulation, zero adhesion, and extreme mobility but also requires a high energetic thermal cost. We describe here a previously unexplored approach using active liquids able to sustain levitation in the absence of any external forcing at ambient temperature. We focus on the particular case of carbonated water placed on a superhydrophobic solid and demonstrate how millimetric fizzy drops self-generate a gas cushion that provides levitation on time scales on the order of a minute. Last, we generalize this new regime to different kinds of chemically reactive droplets able to jump from the Cassie-Baxter state to a levitating regime, paving the way to the levitation of nonvolatile liquids. 2021-10-27T19:51:48Z 2021-10-27T19:51:48Z 2021-07 2021-08-13T17:14:44Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133254 en 10.1126/sciadv.abf0888 Science Advances Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ application/pdf American Association for the Advancement of Science (AAAS) Science Advances |
| spellingShingle | Panchanathan, Divya Bourrianne, Philippe Nicollier, Philippe Chottratanapituk, Abhijatmedhi Varanasi, Kripa K McKinley, Gareth H Levitation of fizzy drops |
| title | Levitation of fizzy drops |
| title_full | Levitation of fizzy drops |
| title_fullStr | Levitation of fizzy drops |
| title_full_unstemmed | Levitation of fizzy drops |
| title_short | Levitation of fizzy drops |
| title_sort | levitation of fizzy drops |
| url | https://hdl.handle.net/1721.1/133254 |
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