Wetting transition energy curves for a droplet on a square-post patterned surface
Due to the property of water repellence, biomimetic superhydrophobic surfaces have been widely applied to green technologies, in turn inducing wider and deeper investigations on superhydrophobic surfaces. Theoretical, experimental and numerical studies on wetting transitions have been carried out by...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2017
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/40908/ |
| _version_ | 1848796160358088704 |
|---|---|
| author | Gong, Wei Zu, Yingqing Chen, Sheng Yan, Yuying |
| author_facet | Gong, Wei Zu, Yingqing Chen, Sheng Yan, Yuying |
| author_sort | Gong, Wei |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Due to the property of water repellence, biomimetic superhydrophobic surfaces have been widely applied to green technologies, in turn inducing wider and deeper investigations on superhydrophobic surfaces. Theoretical, experimental and numerical studies on wetting transitions have been carried out by researchers, but the mechanism of wetting transitions between Cassie-Baxter state and Wenzel state, which is crucial to develop a stable superhydrophobic surface, is still not fully understood. In this paper, the free energy curves based on the transition processes are presented and discussed in detail. The existence of energy barriers with or without consideration of the gravity effect, and the irreversibility of wetting transition are discussed based on the presented energy curves. The energy curves show that different routes of the Cassie-to-Wenzel transition and the reverse transition are the main reason for the irreversibility. Numerical simulations are implemented via a phase field lattice Boltzmann method of large density ratio, and the simulation results show good consistency with the theoretical analysis. |
| first_indexed | 2025-11-14T19:43:34Z |
| format | Article |
| id | nottingham-40908 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:43:34Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-409082020-05-04T18:29:12Z https://eprints.nottingham.ac.uk/40908/ Wetting transition energy curves for a droplet on a square-post patterned surface Gong, Wei Zu, Yingqing Chen, Sheng Yan, Yuying Due to the property of water repellence, biomimetic superhydrophobic surfaces have been widely applied to green technologies, in turn inducing wider and deeper investigations on superhydrophobic surfaces. Theoretical, experimental and numerical studies on wetting transitions have been carried out by researchers, but the mechanism of wetting transitions between Cassie-Baxter state and Wenzel state, which is crucial to develop a stable superhydrophobic surface, is still not fully understood. In this paper, the free energy curves based on the transition processes are presented and discussed in detail. The existence of energy barriers with or without consideration of the gravity effect, and the irreversibility of wetting transition are discussed based on the presented energy curves. The energy curves show that different routes of the Cassie-to-Wenzel transition and the reverse transition are the main reason for the irreversibility. Numerical simulations are implemented via a phase field lattice Boltzmann method of large density ratio, and the simulation results show good consistency with the theoretical analysis. Elsevier 2017-01-30 Article PeerReviewed Gong, Wei, Zu, Yingqing, Chen, Sheng and Yan, Yuying (2017) Wetting transition energy curves for a droplet on a square-post patterned surface. Science Bulletin, 62 (2). pp. 136-142. ISSN 2095-9273 Wetting transition; Energy curves; Lattice Boltzmann method http://www.sciencedirect.com/science/article/pii/S2095927316305874 doi:10.1016/j.scib.2016.12.003 doi:10.1016/j.scib.2016.12.003 |
| spellingShingle | Wetting transition; Energy curves; Lattice Boltzmann method Gong, Wei Zu, Yingqing Chen, Sheng Yan, Yuying Wetting transition energy curves for a droplet on a square-post patterned surface |
| title | Wetting transition energy curves for a droplet on a square-post patterned surface |
| title_full | Wetting transition energy curves for a droplet on a square-post patterned surface |
| title_fullStr | Wetting transition energy curves for a droplet on a square-post patterned surface |
| title_full_unstemmed | Wetting transition energy curves for a droplet on a square-post patterned surface |
| title_short | Wetting transition energy curves for a droplet on a square-post patterned surface |
| title_sort | wetting transition energy curves for a droplet on a square-post patterned surface |
| topic | Wetting transition; Energy curves; Lattice Boltzmann method |
| url | https://eprints.nottingham.ac.uk/40908/ https://eprints.nottingham.ac.uk/40908/ https://eprints.nottingham.ac.uk/40908/ |