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Investigation of surface water behavior during glaze ice accretionMicrovideo observations of glaze ice accretions on 1-in-diameter cylinders in a closed-loop refrigerated wind tunnel were obtained to study factors controlling the behavior of unfrozen surface water during glaze ice accretion. Three zones of surface water behavior were noted, each with a characteristic roughness. The effect of substrate thermal and roughness properties on ice accretions was also studied. The contact angle and hysteresis were found to increase sharply at temperatures just below 0 C, explaining the high resistance to motion of water beads observed on accreting glaze ice surfaces. Based on the results, a simple multizone modification to the current glaze ice accretion model is proposed.
Document ID
19880034852
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hansman, R. John, Jr.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Turnock, Stephen R.
(MIT Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Air Transportation And Safety
Report/Patent Number
AIAA PAPER 88-0115
Accession Number
88A22079
Funding Number(s)
CONTRACT_GRANT: NGL-22-009-640
CONTRACT_GRANT: NAG3-666
Distribution Limits
Public
Copyright
Other

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