抄録
In one of the space experiments made by Don Pettit, a liquid film was sustained in a wire ring, and one side of the ring was heated by a soldering iron. Then a convection was induced in the liquid film. Since the liquid film is heated by the soldering iron, one may expect that the flow would be from the heated part to the film center owing to the produced temperature gradient. In the experiment, however, the flow was induced from the film center to the soldering iron. In this study, ground experiments and a numerical simulation have been conducted to investigate a cause of the induced convection.