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
收藏
页码：411 / 414
页数：4
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