کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
838750 908368 2008 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Well-posedness for an extended Penrose–Fife phase-field model with energy balance supplied by Dirichlet boundary conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Well-posedness for an extended Penrose–Fife phase-field model with energy balance supplied by Dirichlet boundary conditions
چکیده انگلیسی

In this study we consider the non-isothermal phase-field model proposed by Penrose and Fife [Thermodynamically consistent models of phase-field type for the kinetics of phase transitions, Physica D 43 (1990) 44–62]. The system consists of the energy balance law (a nonlinear heat equation) and an equation that describes space-time changes in the order parameter (the Ginzburg–Landau equation). For the energy balance law, we consider the general nonlinear heat flux arising in non-equilibrium thermodynamics and impose the Dirichlet boundary condition. For the order parameter, we impose a constraint and thus consider a parabolic variational inequality. We prove the well-posedness of the problem: the system yields a unique solution that depends continuously upon given data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Real World Applications - Volume 9, Issue 2, April 2008, Pages 370–383
نویسندگان
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