Freezing of Water Drops

Abstract Investigations were made of the ice structures, air-bubble size distributions, and heat exchanges of water drops frozen freely-floating in the purified air of a vertical wind tunnel. Drop diameters varied from 1 to 8 mm, air temperature from −1 to −18.5°C; the ice phase was initiated artifi...

Full description

Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Murray, W. A., List, R.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1972
Subjects:
Online Access:http://dx.doi.org/10.1017/s0022143000022371
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022371
Description
Summary:Abstract Investigations were made of the ice structures, air-bubble size distributions, and heat exchanges of water drops frozen freely-floating in the purified air of a vertical wind tunnel. Drop diameters varied from 1 to 8 mm, air temperature from −1 to −18.5°C; the ice phase was initiated artificially. It was found that the mass of ice in a freezing drop increases linearly with time. Both mean air bubble and crystal sizes decrease in a regular fashion as the air temperature decreases, whereas the bubble concentration increases. Histograms show a preferred tangential orientation of the projections into the plane of observation of the crystallographic hexagonal axis ( c ′-axes), a preference which weakens as the temperature decreases.