Abstract
This paper presents a new technique for reducing frictional drag using a super-water-repellent surface and air-injection (called an SWR & A technique). Its effectiveness was examined by carrying out pressure-loss measurements with a tube of rectangular cross section, along with resistance tests on a horizontal flat plate, a 7.2-m-long tanker model, and a 12-m-long high length-to-beam-ratio model ship. These test results showed that the new technique can significantly reduce the models' frictional drag; for example, the frictional resistance on the SWR surface was reduced by 80% at a speed of 4 m/s and 55% at 8 m/s.
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Received: October 16, 2000 / Accepted: December 4, 2000
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Fukuda, K., Tokunaga, J., Nobunaga, T. et al. Frictional drag reduction with air lubricant over a super-water-repellent surface. J Mar Sci Technol 5, 123–130 (2000). https://doi.org/10.1007/s007730070009
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DOI: https://doi.org/10.1007/s007730070009