Rescaling the dynamics of evaporating drops
Christophe Poulard, Geoffroy Guéna, Anne-Marie Cazabat, A. Boudaoud, M. Ben Amar
Abstract
The dynamics of evaporation of wetting droplets has been investigated experimentally in an extended range of drop sizes, in order to provide trends relevant for a theoretical analysis. A model is proposed, which generalises Tanner's law, allowing us to smooth out the singularities both in dissipation and in evaporative flux at the moving contact line. A qualitative agreement is obtained, which represents a first step towards the solution of a very old, complex problem.
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