Microstructured hydrophobic skin for hydrodynamic drag reduction

被引：60

作者：

Balasubramanian, AK ^{[1
]}

Miller, AC ^{[1
]}

Rediniotis, OK ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA

来源：

AIAA JOURNAL | 2004年 / 42卷 / 02期

关键词：

D O I：

10.2514/1.9104

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A hydrophobic coating/skin was tested to quantify its effectiveness as a hydrodynamic drag reduction device. The particle image velocimetry (PIV) was performed to quantify the effects of the coating/skin on the boundary-layer velocity profile over a flat plate. A flat plate, measuring 55 cm long × 15 cm wide, was tested with and without the coating. The flat plate was mounted inside a water tunnel and the flowfield was seeded with silicon carbide particles, 1.5 μm in diameter. PIV performed on a flat plate, with or without the coating, showed a 20% drag reduction induced by the coating. The drag reduction levels drop with time, apparently approaching a limiting value after 15 min.

引用

页码：411 / 414

页数：4

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