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Determination of surface tension at the phase interfaceA method was developed for determining the surface tension coefficient at the interface of two immiscible liquids or of a gas and a liquid. Basic in this method is the measurement of the capillary rise of a droplet of one of the phases placed on the surface of the other phase. It is shown that the capillary rise is a function of the surface energy of the droplet and the viscous friction of the phases. A mathematical model of the dynamics of a liquid droplet is supported by experiments.
Document ID
19820012592
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dobychin, Y. I. (NASA Headquarters Washington, DC United States)
Date Acquired
September 4, 2013
Publication Date
February 1, 1982
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.15:76641
NASA-TM-76641
Report Number: NAS 1.15:76641
Report Number: NASA-TM-76641
Accession Number
82N20466
Funding Number(s)
CONTRACT_GRANT: NASW-3542
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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