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Title: Capillary free surface in a regular hexagonal cylinder in zero gravity
Description:
These drop tower experiments demonstrate the strikingly different behavior that a fluid in a container with corner will have when the contact angle is greater than or less than a mathematically predicted critical value. The critical value for a wetting liquid is given by alpha + gamma = 90 degrees, where 2*alpha is the interior corner angle and gamma is the container-liquid contact angle. Credits: Experiments carried out at NASA Lewis Research Center by William J. Masica References: Paul Concus and Robert Finn (1969), "On the behavior of a capillary surface in a wedge", Proc. Natl. Acad. Sci. USA, Vol. 63, No.2, pp. 292-299. Web Page: Contributed By: |