Contact Angles of Sessile Droplets Deposited on Rough and Flat Surfaces in the Presence of External Fields

E. Bormashenko

Mathematical Modelling of Natural Phenomena (2012)

  • Volume: 7, Issue: 4, page 1-5
  • ISSN: 0973-5348

Abstract

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The paper proposes a general framework allowing the analysis of wetting problems in the situation when interfacial tensions depend on external fields. An equation predicting apparent contact angles of sessile droplets deposited on rough surfaces in the presence of external fields is derived. The problem of wetting is discussed in the framework of the variational approach. Derivation of a general equation generalizing the Cassie and Wenzel approaches is presented. The effects related to the line tension which are important for nano-structured surfaces are considered.

How to cite

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Bormashenko, E.. "Contact Angles of Sessile Droplets Deposited on Rough and Flat Surfaces in the Presence of External Fields." Mathematical Modelling of Natural Phenomena 7.4 (2012): 1-5. <http://eudml.org/doc/222423>.

@article{Bormashenko2012,
abstract = {The paper proposes a general framework allowing the analysis of wetting problems in the situation when interfacial tensions depend on external fields. An equation predicting apparent contact angles of sessile droplets deposited on rough surfaces in the presence of external fields is derived. The problem of wetting is discussed in the framework of the variational approach. Derivation of a general equation generalizing the Cassie and Wenzel approaches is presented. The effects related to the line tension which are important for nano-structured surfaces are considered.},
author = {Bormashenko, E.},
journal = {Mathematical Modelling of Natural Phenomena},
keywords = {electrowetting; dependence of interfacial tensions on external fields Cassie and Wenzel models; line tension; excess free energy variation; transversality conditions},
language = {eng},
month = {7},
number = {4},
pages = {1-5},
publisher = {EDP Sciences},
title = {Contact Angles of Sessile Droplets Deposited on Rough and Flat Surfaces in the Presence of External Fields},
url = {http://eudml.org/doc/222423},
volume = {7},
year = {2012},
}

TY - JOUR
AU - Bormashenko, E.
TI - Contact Angles of Sessile Droplets Deposited on Rough and Flat Surfaces in the Presence of External Fields
JO - Mathematical Modelling of Natural Phenomena
DA - 2012/7//
PB - EDP Sciences
VL - 7
IS - 4
SP - 1
EP - 5
AB - The paper proposes a general framework allowing the analysis of wetting problems in the situation when interfacial tensions depend on external fields. An equation predicting apparent contact angles of sessile droplets deposited on rough surfaces in the presence of external fields is derived. The problem of wetting is discussed in the framework of the variational approach. Derivation of a general equation generalizing the Cassie and Wenzel approaches is presented. The effects related to the line tension which are important for nano-structured surfaces are considered.
LA - eng
KW - electrowetting; dependence of interfacial tensions on external fields Cassie and Wenzel models; line tension; excess free energy variation; transversality conditions
UR - http://eudml.org/doc/222423
ER -

References

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