Directional solidification cells with grooves for a small partition coefficient.
Directional solidification cells with grooves for a small partition coefficient.
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带凹槽的定向凝固单元，分配系数小。
DOI：
10.1103/physreva.39.2772
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
W. Saarloos
中科院分区：
文献类型：
--
作者：
John D. Weeks;W. Saarloos
利用Dombre和Hakim的渐近匹配方法，我们确定了定向凝固实验中观察到的具有深窄槽的稳态胞状结构的性质。该方法在小分配系数和有限P'eclet数的实验相关区域是有效的。给出了槽的Scheil方程的推广，指出了守恒在确定槽闭合时的重要性。
Using the asymptotic matching procedure of Dombre and Hakim, we determine properties of the steady-state cellular structures with deep narrow grooves observed in directional solidification experiments. The method is valid in the experimentally relevant region of small partition coefficient and finite P\'eclet number. An extension of the Scheil equation for the grooves is given, and the importance of conservation in determining the groove closing is pointed out.