کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4631413 1340622 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-grid methods for characteristic finite volume element solution of semilinear convection–diffusion equations
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Two-grid methods for characteristic finite volume element solution of semilinear convection–diffusion equations
چکیده انگلیسی

Two-grid methods for characteristic finite volume element solutions are presented for a kind of semilinear convection-dominated diffusion equations. The methods are based on the method of characteristics, two-grid method and the finite volume element method. The nonsymmetric and nonlinear iterations are only executed on the coarse grid (with grid size H). And the fine-grid solution (with grid size h) can be obtained by a single symmetric and linear step. It is proved that the coarse grid can be much coarser than the fine grid. The two-grid methods achieve asymptotically optimal approximation as long as the mesh sizes satisfy H = O(h1/3).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 217, Issue 5, 1 November 2010, Pages 1896–1906
نویسندگان
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