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
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله

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 1â2, July 2005, Pages 171-178
Journal: Computers & Mathematics with Applications - Volume 50, Issues 1â2, July 2005, Pages 171-178
نویسندگان
A. Caboussat, R. Glowinski,