Interface stability in a slowly rotating, low gravity tank ExperimentsAnalytical models of liquid in partially-filled rotating tanks predict both the shape of the interface between the liquid and its vapor, and the stability of that interface. The models are of necessity incomplete and experimental data are needed to assess the approximations made. Presented are preliminary experimental studies both in the laboratory and in the low-gravity environment of a free-falling aircraft. Emphasis is placed on bubbles which intersect the container boundaries. Measurements of rotating equilibrium bubble shapes are in agreement with theoretical profiles derived from Laplace's formula. The interface shape depends on the contact angle, the radius of intersection with container, and the ratio of centrifugal force to surface tension.
Document ID
19860035005
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Leslie, F. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Gans, R. F. (Rochester, University NY, United States)