Dynamics of sliding drops on superhydrophobic surfaces
We use a free energy lattice Boltzmann approach to investigate numerically the dynamics of drops moving across superhydrophobic surfaces. The surfaces comprise a regular array of posts small compared to the drop size. For drops suspended on the posts the velocity increases as the number of posts dec...
| Autores principales: | , |
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| Formato: | Journal article |
| Lenguaje: | English |
| Publicado: |
2006
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| _version_ | 1826257993745825792 |
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| author | Dupuis, A Yeomans, J |
| author_facet | Dupuis, A Yeomans, J |
| author_sort | Dupuis, A |
| collection | OXFORD |
| description | We use a free energy lattice Boltzmann approach to investigate numerically the dynamics of drops moving across superhydrophobic surfaces. The surfaces comprise a regular array of posts small compared to the drop size. For drops suspended on the posts the velocity increases as the number of posts decreases. We show that this is because the velocity is primarily determined by the contact angle which, in turn, depends on the area covered by posts. Collapsed drops, which fill the interstices between the posts, behave in a very different way. The posts now impede the drop behaviour and the velocity falls as their density increases. © EDP Sciences. |
| first_indexed | 2024-03-06T18:26:58Z |
| format | Journal article |
| id | oxford-uuid:084cbf2a-072b-4508-8742-31478d703ab1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:26:58Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:084cbf2a-072b-4508-8742-31478d703ab12022-03-26T09:12:09ZDynamics of sliding drops on superhydrophobic surfacesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:084cbf2a-072b-4508-8742-31478d703ab1EnglishSymplectic Elements at Oxford2006Dupuis, AYeomans, JWe use a free energy lattice Boltzmann approach to investigate numerically the dynamics of drops moving across superhydrophobic surfaces. The surfaces comprise a regular array of posts small compared to the drop size. For drops suspended on the posts the velocity increases as the number of posts decreases. We show that this is because the velocity is primarily determined by the contact angle which, in turn, depends on the area covered by posts. Collapsed drops, which fill the interstices between the posts, behave in a very different way. The posts now impede the drop behaviour and the velocity falls as their density increases. © EDP Sciences. |
| spellingShingle | Dupuis, A Yeomans, J Dynamics of sliding drops on superhydrophobic surfaces |
| title | Dynamics of sliding drops on superhydrophobic surfaces |
| title_full | Dynamics of sliding drops on superhydrophobic surfaces |
| title_fullStr | Dynamics of sliding drops on superhydrophobic surfaces |
| title_full_unstemmed | Dynamics of sliding drops on superhydrophobic surfaces |
| title_short | Dynamics of sliding drops on superhydrophobic surfaces |
| title_sort | dynamics of sliding drops on superhydrophobic surfaces |
| work_keys_str_mv | AT dupuisa dynamicsofslidingdropsonsuperhydrophobicsurfaces AT yeomansj dynamicsofslidingdropsonsuperhydrophobicsurfaces |