Super Water-Repellent Surfaces: Potential Application to Drag Reduction of Yachts

Author(s): Ke Zhang, Zheng-Chuang Wang, Ya-Nan Zhang, Fang-Fang Zhang, Yi-Fan Hou, Hu Yan

Journal Name: Recent Patents on Materials Science
Continued as Current Materials Science

Volume 7 , Issue 1 , 2014


We fabricated miniature yachts whose bottoms are coated with different water contact angle-materials, and investigated on the direct correlation between the water contact angle and the sailing velocity. As a result, the sailing velocity increased with increasing in the water contact angle of the yacht bottom. We considered that the rough surface of the yacht bottom, coated with the dispersion containing super water-repellent silica nanoparticles, may decrease contact area with water, resulting in drag reduction and subsequently increasing the sailing velocity. We also briefly reviewed recent patents (US0330340 (2010); US8258206 (2012); US6994045 (2006); US20120247383 (2012); CN200780042283 (2011); CN201110396837 (2011); CN201110167924 (2011); CN201010555247 (2011); WO2012015700 (2012)) on drag reduction by super water-repellent surfaces in this paper.

Keywords: Drag reduction, fractal structure, friction, super water-repellency, wettability, yacht.

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Article Details

Year: 2014
Published on: 04 October, 2013
Page: [71 - 76]
Pages: 6
DOI: 10.2174/18744648113066660019

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