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Pré-Publication, Document De Travail Année : 2007

Complete wetting transitions of nematic liquid crystals on a structured substrate

Résumé

In this article, we generalize Wenzel law, which assigns an effective contact angle for a droplet on a rough substrate, when the wetting layer has an ordered phase, like a nematic. We estimate the conditions for which the wetting behavior of an ordered fluid can be qualitatively different from the one usually found in a simple fluid. To particularize our general considerations, we will use the Landau-de Gennes mean field approach to investigate theoretically and numerically the complete wetting transition between a nematic liquid crystal and a saw-shaped structured substrate.
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Dates et versions

hal-00156058 , version 1 (19-06-2007)
hal-00156058 , version 2 (24-06-2007)

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Chi-Tuong Pham, Pedro Patrício, Jose Manuel Romero-Enrique. Complete wetting transitions of nematic liquid crystals on a structured substrate. 2007. ⟨hal-00156058v2⟩
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