Dynamics of complete wetting liquid under evaporation

ORAL

Abstract

We study the dynamics of a contact line under evaporation and complete wetting conditions taking into account the divergent nature of evaporation near the border of the liquid, as evidenced by Deegan et al.~[Nature \textbf{389}, 827]. The model we propose shows the existence of a precursor film at the edge of the liquid. The length of the precursor film is controlled by Hamacker constant and evaporative flux. Past the precursor film, Tanner's law is generalized accounting for evaporative effects.

*The authors thank ANR DEPSEC 05-BLAN-0056-01 for fundings. G. B. acknowledges funding from Direction G\'en\'erale de l'Armement (DGA)

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Authors

  • Chi-Tuong Pham

    • Laboratoire d'Informatique pour la M\'ecanique et les Sciences de l 'Ing\'enieur, UPR 3251 CNRS \& Universit\'e Paris-Sud 11, Orsay, France

  • Guillaume Berteloot

    • Laboratoire Mati\`ere et Syst\` emes Complexes, UMR 7057 CNRS \& Un iversit\'e Paris Diderot, Paris, France

  • Fran\c{c}ois Lequeux

    • Laboratoire Physico-chimie des Polym\`eres et Milieux Dispers\'es, UMR 7615 CNRS, ESPCI, Paris, France

  • Laurent Limat

    • Laboratoire Mati\`ere et Syst\` emes Complexes, UMR 7057 CNRS \& Un iversit\'e Paris Diderot, Paris, France