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Dynamics of gravity driven three-dimensional thin films on hydrophilic-hydrophobic patterned substrates.

Abstract:

We investigate numerically the dynamics of unstable gravity driven three-dimensional thin liquid films on hydrophilic-hydrophobic patterned substrates. We explore longitudinally striped and checkerboard arrangements. Simulations show that for longitudinal stripes, the thin film can be guided preferentially on the hydrophilic stripes, while fingers develop on adjacent hydrophobic stripes if the width of the stripes is large enough. On checkerboard patterns, the film develops as a finger on hyd...

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Publication status:
Published

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Publisher copy:
10.1021/la903069z

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Journal:
Langmuir : the ACS journal of surfaces and colloids
Volume:
26
Issue:
5
Pages:
3292-3301
Publication date:
2010-03-05
DOI:
EISSN:
1520-5827
ISSN:
0743-7463
URN:
uuid:a616c74e-251b-410b-afef-8cdd349cbaff
Source identifiers:
176532
Local pid:
pubs:176532

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