Depletion and Retention of Fluid on a Rotating Disk

[+] Author and Article Information
Yih-O Tu

IBM Research Laboratory, San Jose, Calif. 95193

J. of Lubrication Tech 105(4), 625-629 (Oct 01, 1983) (5 pages) doi:10.1115/1.3254694 History: Received December 20, 1982; Online November 13, 2009


Assuming that a dry circular center is present at which the contact angle between the liquid and solid phases remains constant at all times, the axisymmetric free surface of liquid on a flat disk is determined from the Laplace formula in which the radial gradient of the fluid pressure balances the centrifugal force. The depletion of a thin layer of fluid from a rotating finite disk is described quasi-statically. A remnant of residual fluid is determined to remain on the disk. For moderate rotating speed, this remnant fluid volume is retained on the disk without loss.

Copyright © 1983 by ASME
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