Abstract
Dendritic crystal growth of a pure metal material in a melt convection is investigated numerically by applying the phase field model. The assumed flow field is a Couette flow, and a tiny nucleus is exposed in its middle part. The phase field, thermal and Navier-Stokes equations, are solved with a finite differential method. In order to avoid to take account of boundary conditions in a very complex shape, an external force term is added in the liquid phase. The effects of the melt convection upon the dendritic are discussed.
