| Original Articles |
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Large Slip Length over a Nanopatterned Surface |
| LI Ding 1,2;DI Qin-Feng 3;LI Jing-Yuan 4;QIAN Yue-Hong 3;FANG Hai-Ping 1 |
| 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 2018002Graduate School of the Chinese Academy of Sciences, Beijing 1000803Shanghai Institute of Applied Mathematics and Mechanics, ShanghaiUniversity, Shanghai 200074Department of Physics, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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LI Ding, DI Qin-Feng, LI Jing-Yuan et al 2007 Chin. Phys. Lett. 24 1021-1024 |
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Abstract A thermodynamic method is employed to analyse the slip length of hydrophobic nanopatterned surface. The maximal slip lengths with respect to the hydrophobicity of the nanopatterned surface are computed. It is found that the slip length reaches more than 50mum if the nanopatterned surfaces have a contact angle larger than 160°. Such results are expected to find extensive applications in micro-channels and helpful to understand recent
experimental observations of the slippage of nanopatterned surfaces.
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| Keywords:
68.08.-p
83.50.Lh
68.03.Cd
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Received: 18 September 2006
Published: 26 March 2007
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| PACS: |
68.08.-p
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(Liquid-solid interfaces)
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83.50.Lh
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(Slip boundary effects (interfacial and free surface flows))
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68.03.Cd
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(Surface tension and related phenomena)
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