Thermische Marangonikonvektion in Tropfen unter Mikrogravitation bei Beachtung der Tropfendeformation

The investigations presented here are part of a microgravity project in which the reduction of thermal Marangoni convection by using a transient heat source is studied experimentally and theoretically. This publication shows the results of the theoretical considerations concerning steady state fluid motion in a drop under microgravity induced by a given temperature field at the surface of the drop. In contrast to the literature where the surface is assumed to be an undeformed sphere the position of the surface is part of the solutions obtained. The solutions have been computed for Reynolds numbers 0 &le Re &le 5000 and capillary numbers 10 &le Ca &le 1000.