کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
522731 867851 2006 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A discontinuous Galerkin method for the Cahn–Hilliard equation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A discontinuous Galerkin method for the Cahn–Hilliard equation
چکیده انگلیسی

A discontinuous Galerkin finite element method has been developed to treat the high-order spatial derivatives appearing in the Cahn–Hilliard equation. The Cahn–Hilliard equation is a fourth-order nonlinear parabolic partial differential equation, originally proposed to model phase segregation of binary alloys. The developed discontinuous Galerkin approach avoids the need for mixed finite element methods, coupled equations or interpolation functions with a high degree of continuity that have been employed in the literature to treat the fourth-order spatial derivatives. The variational formulation of the discontinuous Galerkin method, its implementation and numerical examples are presented. In this communication, it is also shown under what conditions the method is stable, and an error estimate in an energy-type norm is presented. The method is evaluated by comparison with a standard finite element treatment in which the Cahn–Hilliard equation is decomposed into two coupled partial differential equations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 218, Issue 2, 1 November 2006, Pages 860–877
نویسندگان
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