Frictional drag reduction with air lubricant over a super-water-repellent surface

被引：25

作者：

Fukuda K. ^{[1
]}

Tokunaga J. ^{[1
]}

Nobunaga T. ^{[1
]}

Nakatani T. ^{[1
]}

Iwasaki T. ^{[1
]}

Kunitake Y. ^{[1
]}

机构：

[1] R. and D. Headquarters, Mitsui Eng. and Shipbldg. Co., Ltd., Chuo-ku, Tokyo 104-8439

来源：

Journal of Marine Science and Technology | 2000年 / 5卷 / 3期

关键词：

Air lubricant; Fluid frictional drag; Frictional drag reduction; Super-water-repellent surface;

D O I：

10.1007/s007730070009

中图分类号：

学科分类号：

摘要：

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 4m/s and 55% at 8m/s.

引用

页码：123 / 130

页数：7

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