Study on Propagation Phenomenon of Ice on Solid Surface
Abstract
This study is on propagation process of ice on solid surface. A single ice crystal was used and propagation was started by letting the tip of the ice to touch the surface in supercooled water due to free growth of the crystal. Parameters, such as degree of supercooling, surface roughness by different degree of polishing, surface property by existence or non-existence of oxidation, direction of c-axis of as ingle ice crystal and thermal properties of solid material, were selected, and the effect on the velocity of propagation was investigated, experimentally. It was found that propagation is faster on the direction perpendicular to the c-axis of the crystal. It was also found that in a case of copper surface, dislocation of ice occurs quickly and correlation between the direction of the crystal and the speed of propagation on the surface disappears. In a case of linearly polished copper surface, if the amplitude of roughness is big enough, having an equivalent order of the thickness of the tip of ice, it was found that the propagation is faster in the direction parallel to the line of polishing than the direction normal to the line. Finally, using copper, stainless steel and polycarbonate as a material for the surface, it was also found that speed of propagation depends on the material.
- Publication:
-
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
- Pub Date:
- 2011
- Bibcode:
- 2011TRACE..19...91S
- Keywords:
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- Ice propagation;
- Supercooled water;
- Single crystal;
- Solid surface;
- Surface roughness;
- Oxidized surface