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Dynamics of sliding drops on superhydrophobic surfaces

Abstract:

We use a free energy lattice Boltzmann approach to investigate numerically the dynamics of drops moving across superhydrophobic surfaces. The surfaces comprise a regular array of posts small compared to the drop size. For drops suspended on the posts the velocity increases as the number of posts decreases. We show that this is because the velocity is primarily determined by the contact angle which, in turn, depends on the area covered by posts. Collapsed drops, which fill the interstices betw...

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Publication status:
Published

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Publisher copy:
10.1209/epl/i2005-10597-8

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
EUROPHYSICS LETTERS More from this journal
Volume:
75
Issue:
1
Pages:
105-111
Publication date:
2006-07-01
DOI:
EISSN:
1286-4854
ISSN:
0295-5075
Language:
English
Pubs id:
pubs:4579
UUID:
uuid:084cbf2a-072b-4508-8742-31478d703ab1
Local pid:
pubs:4579
Source identifiers:
4579
Deposit date:
2012-12-19

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