Abstract
We have carried out numerical simulations of ice crystal growth in a two-dimensional duct. An immersed-boundary method and the Phase Field equation are utilized to determine the interface. It is found that, as Reynolds number become higher, the growing dendrite arms to upstream become thick. Moreover, since a released latent heat in the upstream direction is transported downstream by flow, temperature gradient near the interface developing upstream becomes gentler compared with the temperature gradient near the interface developing downstream. Thus, ice growth is inhibited. Therefore, it is found that there is a strong correlation between temperature gradient around the interface and ice growth velocity.
