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Use of thermocapillary migration in a controllable heat valveIn accordance with the Marangoni effect, immiscible droplets in a host fluid in which a temperature gradient exists move in the direction of increasing temperature. It is proposed that this thermocapillary migration could be used to construct a 'liquid wick' that would return the condensed vapor at the condenser end of a heat pipe back to the evaporator, thus completing the fluid circuit. The droplets would be formed by capillary pressure forcing the condensate through a perforated diaphragm whose temperature would control the droplet flux, and hence the heat flux between the two ends of the heat pipe, thus making it a controllable heat valve.
Document ID
19830034875
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Schmid, L. A.
(National Bureau of Standards, Thermophysics Div., Washington DC, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Journal of Applied Physics
Volume: 53
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
83A16093
Distribution Limits
Public
Copyright
Other

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