کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
500321 863082 2007 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Petrov–Galerkin enriched method: A mass conservative finite element method for the Darcy equation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A Petrov–Galerkin enriched method: A mass conservative finite element method for the Darcy equation
چکیده انگلیسی

Starting from the non-stable P1/P0P1/P0 discretization we build enhanced methods for the Darcy equation which are stable and locally mass-conservative. The methods are derived in a Petrov–Galerkin framework where both velocity and pressure trial spaces are enriched with multiscale functions. These functions solve local problems correcting the residuals of the strong equations in each element and interior edge, which leads to a velocity space enhanced with functions belonging to the lowest order Raviart–Thomas space. Several numerical tests validate the methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 196, Issues 21–24, 1 April 2007, Pages 2449–2464
نویسندگان
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