Polycrystalline ice contains a three-dimensional network of water filled veins, whose size is a function of temperature among other parameters. In order to study heat transfer to and from these veins, a model of their arrangement around a crystal is necessary. The geometrical constraints of this arrangement are discussed and a model is proposed. This is compared to various other models, including that used by Frank (1968) for convection in the earth's mantle.

You do not currently have access to this article.