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The Stokes force on a droplet in an unbounded fluid medium due to capillary effectsThe Stokes force on a fluid droplet is obtained when the droplet is placed in an unbounded fluid medium and motion ensues due to an arbitrary interfacial-tension gradient on the droplet surface. The force, derived here for a spherical droplet, is proportional to the integral of the interfacial-tension gradient over the droplet surface. When the interfacial-tension gradients are caused by temperature or concentration variations, the result for the force may be further specialized when convective transport effects are negligible. In this case, it is possible to express the force in terms of the gradient of the undisturbed temperature (or concentration) field evaluated at the location of the droplet center in a form analogous to Faxen's force law.
Document ID
19870053673
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Subramanian, R. Shankar
(Clarkson University Potsdam, NY, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Journal of Fluid Mechanics
Volume: 153
ISSN: 0022-1120
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
87A40947
Funding Number(s)
CONTRACT_GRANT: NSF CPE-83-15048
CONTRACT_GRANT: NAS8-32944
Distribution Limits
Public
Copyright
Other

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