کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9662363 698776 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A two-grids/projection algorithm for obstacle problems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
A two-grids/projection algorithm for obstacle problems
چکیده انگلیسی
In order to emphasize the possible relation between discontinuous and continuous approximations on different meshes, a two-grids method for the resolution of parabolic variational inequality problems is presented. The numerical methodology combines a time splitting algorithm to decouple a diffusion phenomenon from an obstacle problem. The diffusion problem is solved by using finite-differences, while piecewise linear finite-element techniques are used together with a Newton method for the obstacle problem. Projections are used to interpolate the solution from one grid to the other. Numerical experiments show that the resulting method has good accuracy properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 50, Issues 1–2, July 2005, Pages 171-178
نویسندگان
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