Z. Chen
,
C.L.Chen
,
L.M. Hao
金属学报(英文版)
Numerical simulation based on phase field method
is performed to describe solidification process of pure material in
a free or forced flow. The evolution of the interface is showed, and
the effects of mesh grid and flow velocity on succinonitrite shape
are studied. These results indicate that crystal grows into an
equiaxial dendrite in a free flow and into an asymmetrical dendritic
in a forced flow. With increasing flow velocity, the
upstream dendritic arm tip grows faster and the downstream arm grows
slower. However, the evolution of the perpendicular tip has no
significant change. In addition, mesh grid has no influence on
dendritic growth shape when mesh grid is above 300x300.
关键词:
Phase field method
,
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