Résumé:
We consider the conservation equation of water drops describing the
coagulation process of water drops falling in the air with a speed
determined by the gravitational force, the friction between these
droplets and the air as well as the speed of the air. It represents the
transport equation of water droplets as well as growth of droplets by
condensation in the atmosphere in the presence of a vertical ascending
wind.
The principal result is the existence of a stationary solution of the
equation in a one-dimensional domain, and under some suitable
hypotheses.
