Front tracking approach to modeling binary alloy solidification
Front tracking approach to modeling binary alloy solidification
复制标题
二元合金凝固建模的前跟踪方法
DOI：
10.1108/hff-02-2013-0069
复制
发表时间：
2014
影响因子：
4.2
通讯作者：
J. Banaszek
中科院分区：
文献类型：
--
作者：
M. Seredyński;J. Banaszek
目的-本文的目的是赞同使用特殊的后计算前沿跟踪（FT）程序的想法，沿着与多孔性前沿跟踪（EP-FT）单连续模型，以识别不同的枝晶显微组织的区域发展的糊状区在冷却和凝固的二元合金。设计/方法/方式-FT方法的二维和三维算法沿着不同的晶体生长规律进行了宏观计算的二元合金凝固过程中不同的枝晶区发展的识别。结果-FT模型预测的结果与固体体积分数的临界值的概念的基础上的直接比较显示了后者的敏感性上的任意假设值的枝晶相干点（DCP）。此外，对于精心选择的DCP值，第二个模型提供的结果接近于基于FT的方法给出的结果。它是...
Purpose – The purpose of this paper is to endorse the idea of using a special post-calculating front tracking (FT) procedure, along with the enthalpy-porosity front tracking (EP-FT) single continuum model, in order to identify zones of different dendritic microstructures developing in the mushy zone during cooling and solidification of a binary alloy. Design/methodology/approach – The 2D and 3D algorithms of the FT approach along with different crystal growth laws were implemented in macroscopic calculations of binary alloy solidification with the identification of different dendrite zones developing during the process. Findings – Direct comparison of results predicted by the FT model with that based on the concept of the critical value of the solid volume fraction shows the sensitivity of the latter on an arbitrary assumed value of the dendrite coherency point (DCP). Moreover, for a carefully chosen DCP value the second model provides results that are close to those given by the FT-based approach. It is ...