Interface Profiles near Three-Phase Contact Lines in Electric Fields

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Buehrle, Juergen and Herminghaus, Stephan and Mugele, Frieder (2003) Interface Profiles near Three-Phase Contact Lines in Electric Fields. Physical Review Letters, 91 (8). p. 86101. ISSN 0031-9007

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Abstract:Long-range electrostatic fields deform the surface profile of a conductive liquid in the vicinity of the contact line. We have investigated the equilibrium profiles by balancing electrostatic and capillary forces locally at the liquid vapor interface. Numerical results show that the contact angle at the contact line approaches Young's angle. Simultaneously, the local curvature displays a weak algebraic divergence. Furthermore, we present an asymptotic analytical model, which confirms these results and elucidates the scaling behavior of the profile close to the contact line.
Item Type:Article
Copyright:© 2003 The American Physical Society
Link to this item:http://purl.utwente.nl/publications/57231
Official URL:http://dx.doi.org/10.1103/PhysRevLett.91.086101
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