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Modeling droplets on superhydrophobic surfaces: equilibrium states and transitions.

Abstract:
We present a lattice Boltzmann solution of the equations of motion describing the spreading of droplets on topologically patterned substrates. We apply it to model superhydrophobic behavior on surfaces covered by an array of micrometer-scale posts. We find that the patterning results in a substantial increase in contact angle, from 110 degrees to 156 degrees. The dynamics of the transition from drops suspended on top of the posts to drops collapsed in the grooves is described.
Publication status:
Published

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Publisher copy:
10.1021/la047348i

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Role:
Author
Journal:
Langmuir : the ACS journal of surfaces and colloids
Volume:
21
Issue:
6
Pages:
2624-2629
Publication date:
2005-03-05
DOI:
EISSN:
1520-5827
ISSN:
0743-7463
URN:
uuid:a74fcfef-4ee7-40b5-a29a-3323049d9b48
Source identifiers:
10929
Local pid:
pubs:10929
Language:
English

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