Immersed superhydrophobic surfaces: Gas exchange, slip and drag reduction properties

McHale, Glen, Newton, Michael and Shirtcliffe, Neil (2010) Immersed superhydrophobic surfaces: Gas exchange, slip and drag reduction properties. Soft Matter, 6 (4). p. 714. ISSN 1744-683X

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Superhydrophobic surfaces combine high aspect ratio micro- or nano-topography and hydrophobic surface chemistry to create super water-repellent surfaces. Most studies consider their effect on droplets, which ball-up and roll-off. However, their properties are not restricted to modification of the behaviour of droplets, but potentially influence any process occurring at the solid-liquid interface. Here, we highlight three recent developments focused on the theme of immersed superhydrophobic surfaces. The first illustrates the ability of a superhydrophobic surface to act as a gas exchange membrane, the second demonstrates a reduction in drag during flow through small tubes and the third considers a macroscopic experiment demonstrating an increase in the terminal velocity of settling spheres.

Item Type: Article
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 02 Feb 2012 15:47
Last Modified: 17 Dec 2023 12:33

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