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231224s2014 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la500805d
|2 doi
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|a eng
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| 100 |
1 |
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|a Wray, Alexander W
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Electrostatic suppression of the "coffee stain effect"
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| 264 |
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 13.04.2015
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|a Date Revised 27.05.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The dynamics of a slender, evaporating, particle-laden droplet under the effect of electric fields are examined. Lubrication theory is used to reduce the governing equations to a coupled system of evolution equations for the interfacial position and the local, depth-averaged particle concentration. The model incorporates the effects of capillarity, viscous stress, Marangoni stress, elecrostatically induced Maxwell stress, van der Waals forces, concentration-dependent rheology, and evaporation. Via a parametric numerical study, the one-dimensional model is shown to recover the expected inhomogeneous ring-like structures in appropriate parameter ranges due to a combination of enhanced evaporation close to the contact line, and resultant capillarity-induced flow. It is then demonstrated that this effect can be significantly suppressed via the use of carefully chosen electric fields. Finally, the three-dimensional behavior of the film and the particle concentration field is briefly examined
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|a Journal Article
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|a Papageorgiou, Demetrios T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Craster, Richard V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sefiane, Khellil
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Matar, Omar K
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 20 vom: 27. Mai, Seite 5849-58
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|x 1520-5827
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|g volume:30
|g year:2014
|g number:20
|g day:27
|g month:05
|g pages:5849-58
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|u http://dx.doi.org/10.1021/la500805d
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