کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
520688 867732 2011 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fast adaptive quadtree scheme for a two-layer shallow water model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A fast adaptive quadtree scheme for a two-layer shallow water model
چکیده انگلیسی

This paper presents a dynamically adaptive quadtree grid generation system for the solution of a two-dimensional two-layer shallow water model. Roe-type two-layer shallow water solvers require numerical approximation of the system eigenvalues as well as numerical balancing, which increase computational cost considerably when a regular grid is used. In order to improve computational efficiency, we consider a dynamically adaptive quadtree grid generation system capable of increasing local resolution where high gradients occur in the physical flow variables. Test results show that satisfactory convergence can be obtained using the present scheme with the adaptive grid generator at a fraction of the cost incurred by a regular grid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 230, Issue 12, 1 June 2011, Pages 4848–4870
نویسندگان
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