Dynamics of complete wetting liquid under evaporation

ORAL

Abstract

The dynamics of a contact line under evaporation and total wetting conditions is studied taking into account the divergent nature of evaporation near the border of the liquid, as evidenced by Deegan et al.~[Nature \textbf{389}, 827 (1997)]. Complete wetting is assumed to be due to Van der Waals interactions. The existence of a precursor film at the edge of the liquid is shown analytically and numerically. 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.

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Authors

  • Chi-Tuong Pham

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

  • Guillaume Berteloot

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

  • Fran\c cois Lequeux

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

  • Laurent Limat

    • CNRS
    • Laboratoire Mati\`ere et Syst\`emes Complexes, UMR 7057 of CNRS and Paris Diderot University
    • Laboratoire Mati\`ere et Syst\` emes Complexes, UMR 7057 CNRS \& Universit\'e Paris Diderot, Paris, France