کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9727643 | 1480206 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pattern selection in a phase field model for directional solidification
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pattern selection in a phase field model for directional solidification Pattern selection in a phase field model for directional solidification](/preview/png/9727643.png)
چکیده انگلیسی
A symmetric phase field model is used to study wavelength selection in two dimensions. We study the problem in a finite system using a two-pronged approach. First we construct an action and, minimizing this, we obtain the most probable configuration of the system, which we identify with the selected stationary state. The minimization is constrained by the stationary solutions of stochastic evolution equations and is done numerically. Secondly, additional support for this selected state is obtained from straightforward simulations of the dynamics from a variety of initial states.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 354, 15 August 2005, Pages 333-343
Journal: Physica A: Statistical Mechanics and its Applications - Volume 354, 15 August 2005, Pages 333-343
نویسندگان
R.N. Costa Filho, J.M. Kosterlitz, Enzo Granato,