Abstract

The Ostwald ripening of droplets in a supersaturated vapor is analyzed in a semi-infinite system bounded by an unwetted wall. Whereas in an unbounded system only the growth of the droplet radius is taken into account, the distance of the droplet from the wall enters as a second dynamic variable in a semi-infinite system. In the space of these two variables the ripening process is described by a set of trajectories that display a depletion layer of about three critical radii in thickness above the boundary wall. The asymptotic droplet-number distribution is also calculated as a function of the two variables.

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