Drag reduction in channels on micro-nano structured super-hydrophobic surface by poly fluoride siloxane

被引：0
|
作者：
Cao, Dang-Chao [1 ]
Fu, Cheng-Song [1 ]
Lu, Si [1 ]
Yao, Zhao-Hui [1 ]
机构：
[1] School of Aerospace, Tsinghua University, Beijing 100084, China
来源：
Rengong Jingti Xuebao/Journal of Synthetic Crystals | 2013年 / 42卷 / 03期
关键词：
Coating process - Flow drag - In-channels - Micro-nano - Micro-nano structures - Structured surfaces - Super-hydrophobic surfaces;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The characteristic of flow drag reduction on a large area of micro-nano structured surface which was treated by poly fluoride siloxane was studied. Firstly, the micro-nano structured fly ash particles was prepared by coating process, and treated by poly fluoride siloxane. Secondly, the super-hydrophobic surface channel was achieved by bonding the particles with silicone rubbe. By comparing the channel with super-hydrophobic surface and normal surface, the results showed that when the flow of Reynolds number(Re) was below 1500, the laminar flow drag reduction was 25.6%, and when the Re was above 1500, the turbulent flow reduction could reach to 76.5%.
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页码：521 / 524
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