数字模拟基于阶段地方法被执行描述硅的团结。树突生长形状上的 anisotropy, undercooling 和联合参数的效果被调查。全部方面树突形状被使用调整阶段地模型获得,这被显示。到固定的值的树突驱动器的稳定的州的尖端速度什么时候 0.13。与进一步增加 anisotropy 价值,稳定的州的尖端速度减少,尺寸更小。随 undercooling 和联合参数的增加,水晶从方面成长到方面树突。与增加联合参数,另外,方面树突的方面部分逐渐地减少,它在对 Wulff 理论的好同意。
Numerical simulation based on phase field method was performed to describe the solidification of silicon. The effect of anisotropy, undercooling and coupling parameter on dendrite growth shape was investigated. It is indicated that the entire facet dendrite shapes are obtained by using regularized phase field model. Steady state tip velocity of dendrite drives to a fixed value when γ≤0.13. With further increasing the anisotropy value, steady state tip velocity decreases and the size is smaller. With the increase in the undercooling and coupling parameter, crystal grows from facet to facet dendrite. In addition, with increasing coupling parameter, the facet part of facet dendrite decreases gradually, which is in good agreement with Wulfftheory.