Energy Loss for Droplets Bouncing Off Superhydrophobic Surfaces
dc.contributor | Aalto-yliopisto | fi |
dc.contributor | Aalto University | en |
dc.contributor.author | Thenarianto, Calvin | |
dc.contributor.author | Koh, Xue Qi | |
dc.contributor.author | Lin, Marcus | |
dc.contributor.author | Jokinen, Ville | |
dc.contributor.author | Daniel, Dan | |
dc.contributor.department | Agency for Science, Technology and Research | |
dc.contributor.department | Nanyang Technological University | |
dc.contributor.department | Department of Chemistry and Materials Science | |
dc.contributor.department | Department of Chemistry and Materials Science | en |
dc.date.accessioned | 2024-01-17T08:37:17Z | |
dc.date.available | 2024-01-17T08:37:17Z | |
dc.date.embargo | info:eu-repo/date/embargoEnd/2024-02-16 | |
dc.date.issued | 2023-02-28 | |
dc.description | The authors thank Wang and co-workers for sharing their data with us. Publisher Copyright: © 2023 American Chemical Society. | |
dc.description.abstract | A water droplet can bounce off superhydrophobic surfaces multiple times before coming to a stop. The energy loss for such droplet rebounds can be quantified by the ratio of the rebound speed UR and the initial impact speed UI; i.e., its restitution coefficient e = UR/UI. Despite much work in this area, a mechanistic explanation for the energy loss for rebounding droplets is still lacking. Here, we measured e for submillimeter-and millimeter-sized droplets impacting two different superhydrophobic surfaces over a wide range of UI (4- 700 cm s-1). We proposed simple scaling laws to explain the observed nonmonotonic dependence of e on UI. In the limit of low UI, energy loss is dominated by contact-line pinning and e is sensitive to the surface wetting properties, in particular to contact angle hysteresis Delta cos 0 of the surface. In contrast, e is dominated by inertial-capillary effects and does not depend on Delta cos 0 in the limit of high UI. | en |
dc.description.version | Peer reviewed | en |
dc.format.extent | 6 | |
dc.format.extent | 3162–3167 | |
dc.identifier.citation | Thenarianto , C , Koh , X Q , Lin , M , Jokinen , V & Daniel , D 2023 , ' Energy Loss for Droplets Bouncing Off Superhydrophobic Surfaces ' , Langmuir , vol. 39 , no. 8 , pp. 3162–3167 . https://doi.org/10.1021/acs.langmuir.2c03449 | en |
dc.identifier.doi | 10.1021/acs.langmuir.2c03449 | |
dc.identifier.issn | 0743-7463 | |
dc.identifier.issn | 1520-5827 | |
dc.identifier.other | PURE UUID: fd4bfe36-cc37-4ccc-9412-b66a7bc1198e | |
dc.identifier.other | PURE ITEMURL: https://research.aalto.fi/en/publications/fd4bfe36-cc37-4ccc-9412-b66a7bc1198e | |
dc.identifier.other | PURE LINK: http://www.scopus.com/inward/record.url?scp=85148517257&partnerID=8YFLogxK | |
dc.identifier.other | PURE LINK: http://hdl.handle.net/10754/682058 | |
dc.identifier.uri | https://aaltodoc.aalto.fi/handle/123456789/125910 | |
dc.identifier.urn | URN:NBN:fi:aalto-202401171585 | |
dc.language.iso | en | en |
dc.publisher | American Chemical Society | |
dc.relation.ispartofseries | Langmuir | en |
dc.relation.ispartofseries | Volume 39, issue 8 | en |
dc.rights | embargoedAccess | en |
dc.title | Energy Loss for Droplets Bouncing Off Superhydrophobic Surfaces | en |
dc.type | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä | fi |