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Etude sur la croissance anisotropique d'un cristal de glace dans de l'eau surrefroidie.

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

Auteurs : TERAOKA Y., SAITO A., OKAWA S.

Type d'article : Article, Article de la RIF

Résumé

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.

Documents disponibles

Format PDF

Pages : 242-247

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Study on anisotropy of growth rate of ice crystal in supercooled water.
  • Identifiant de la fiche : 2004-1001
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 27 - n. 3
  • Date d'édition : 05/2004

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