Motion driven by the interfaceDue to the reduction in buoyant forces aboard orbiting spacecraft such as the Space Shuttle, fluid motion driven by gradients in interfacial tension will be important in the processing of materials in space. In this paper, preliminary results from a study of surface tension driven flow in a pendant drop are reported. The drop is heated from above, and the resulting temperature gradients on the drop surface give rise to interfacial tension gradients. These, in turn, drive a circulation in the drop which is made visible by suitable tracers. The velocities are measured using a video technique, and the data on core velocities are found to agree well with results from a predictive theoretical model.
Document ID
19840059953
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jayaraj, K. (Clarkson Coll. of Technology Potsdam, NY, United States)
Cole, R. (Clarkson Coll. of Technology Potsdam, NY, United States)
Subramanian, R. S. (Clarkson College of Technology Potsdam, NY, United States)