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Study on anisotropy of growth rate of ice crystal in supercooled water.

Author(s) : TERAOKA Y., SAITO A., OKAWA S.

Type of article: Article, IJR article

Summary

The purpose of this research was to investigate the ice growth of a single crystal in three dimensions. The three-dimensional pattern of ice crystal growth in supercooled water was observed using a Mach-Zehnder spectro-interferometer. Temperature was varied from -0.3 to -1.6 °C. It was found that the ice crystal began to grow as a single crystal at the tip of the capillary tube and propagated freely in supercooled water. The variation over time of the shape of dendrite on an a-c plane was obtained. It was found that half parabola fits the shape very closely, and the coefficient of squared term, a, of a quadratic function was calculated. The coefficient a varied over time but at quasi steady state it was found to be depending mostly upon the degree of supercooling. Furthermore, the growth velocity in c-axis at the flat surface was calculated from the thickness measured. It was found that the velocity in c-axis is independent of the degree of supercooling but depends upon time, in other words, the thickness in c-axis.

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Pages: 242-247

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Details

  • Original title: Study on anisotropy of growth rate of ice crystal in supercooled water.
  • Record ID : 2004-1001
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 27 - n. 3
  • Publication date: 2004/05

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