Water repellent/wetting characteristics of various bio-inspired morphologies and fluid drag reduction testing research

作者：Luo, Yuehao^*; Song, Wen; Wang, Xudong

来源：Micron, 2016, 82: 9-16.

DOI：10.1016/j.micron.2015.12.004

• Anisotropic wetting
• Micro-fabrication
• Low resistance surface
• Biological surface
• Bionics

It is well-known that the bio-inspired sharkskin covering the original pattern has the apparent drag reduction function in the turbulent flowing stations, which can be regarded as "sharkskin effect", and it has progressively been put application into the fluid engineering with obtaining great profits. In this paper, the anisotropic wetting phenomena on sharkskin are discovered, the contact angles and rolling angles on different orientations are not the same. In addition, the hydrodynamic experiments on different sharkskin surfaces are conducted, and the experimental results illustrate that the super-hydrophobic and drag-reducing properties on deformed biological surfaces are improved to some extent compared to the original morphology, which has important significance to expand its practical applications.

• 出版日期2016-3
• 单位西北工业大学