Experimental research on friction-reduction with super-hydrophobic surfaces
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Many recent studies have confirmed the existence of liquid slip over particular types of solid surfaces, and these so-called super-hydrophobic surfaces have been shown to generate effective liquid slip because of the air trapped between the surface structures. In this paper, based on boundary layer theory, the microscopic structure of the super-hydrophobic surface is analyzed. The liquid slip effect on friction-reduction over super-hydrophobic surfaces under various flow conditions is investigated by experiments with a flume and water tunnel. The experimental results show that the greatest amount of drag-reduction that can be achieved is 8.76% at a low Re.
- BARTHLOTT W, NEINHUIS C. Purity of the sacred lotus, or escape from contamination in biological surfaces[J]. Planta, 1997, 202:1–8. CrossRef
- NAKAJIMA A, HASHIMOTO K, WATANABE T. Recent studies on Super hydrophobic films[J]. Monatsh Chem. 2001, 132:31–41.
- YANG J, KWOK D Y. Effect of liquid slip in electrokinetic parallel-plate microchannel flow[J]. Colloid Interface Sci. 2003, 260:225–233. CrossRef
- SPIKES H A. The half-wetted bearing, part I—extended Reynolds equation[J]. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2003, 217(1):1–14. CrossRef
- CHOI C H, KIM C J. Large slip of aqueous liquid flow over a nano engineered super hydrophobic surface. Physical Review Letters, 2006, 96(66001):1–4.
- Experimental research on friction-reduction with super-hydrophobic surfaces
Journal of Marine Science and Application
Volume 6, Issue 3 , pp 58-61
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- Harbin Engineering University
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- liquid slip
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