کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1599233 1005083 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
2-Dimensional FEM modeling of macrosegregation in the directional solidification with mesh adaptation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
2-Dimensional FEM modeling of macrosegregation in the directional solidification with mesh adaptation
چکیده انگلیسی
In order to improve the prediction accuracy of macrosegregation channel, an algorithm for dynamic remeshing is proposed. The basic idea is to generate fine elements near the liquidus isotherm. The norm of the gradient of solid fraction is used for piloting the remeshing in the mushy zone; whereas, the objective mesh size in the liquid is considered as a function of the distance to the liquidus isotherm. The efficiency of mesh adaptation is demonstrated by prediction of macrosegregation channel in a case of unidirectional solidification.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 3, June 2009, Pages 233-240
نویسندگان
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