Dresden 2009 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 12: Poster I

DY 12.26: Poster

Dienstag, 24. März 2009, 14:30–16:30, P1A

Size Distribution of Hanging Dew Droplets — •Tobias Lapp, Johannes Blaschke, Jürgen Vollmer, and Björn Hof — MPI for Dynamics and Self-Organization, 37073 Göttingen, Germany

The formation, growth and coarsening of dew droplets on flat surfaces has widely been studied in the physics literature under the keyword ``Breath Figures''. Surprisingly, little attention has been devoted however to hanging dew droplets. In this case coarsening comes to rest due to dripping off of droplets from the surface, and gravity changes the relation of droplet volume and surface release in coalescence events. We present experimental data for the droplet distribution, and discuss how these gravity induced effects influence Family and Meakin's classical expressions for the size distribution of droplets.