采用相场模型,计算了纯镍的过冷熔液在凝固过程中的枝晶生长.在相场方程中,采用均匀网格的一般显示有限差分方法求解,通过数值模拟显示了枝晶的形貌,包括一次臂、二次臂,以及在枝晶生长过程中出现的"缩颈"现象.
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