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Surface-tension-induced convection experiment MA-041In the absence of gravity, stirring in a liquid is suppressed because of density differences caused by thermal or compositional gradients. However, other mechanisms resulting in natural convection in a microgravity environment exist. One of the most important mechanisms for liquid metals is surface tension driven convection, which becomes predominant in the low gravity environment. In this case, surface tension differences caused by compositional or temperature gradients have been demonstrated to cause stirring in liquids during experiments performed onboard Skylab. Compositional gradients were created by adding a soap solution to a large water globule, which caused vigorous fluid motion for some moments after the addition.
Document ID
19760016009
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Reed, R. E.
(Oak Ridge National Lab. TN, United States)
Date Acquired
August 8, 2013
Publication Date
February 1, 1976
Publication Information
Publication: NASA. Lyndon B. Johnson Space Center Apollo-Soyuz Test Project
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
76N23097
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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