کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6929375 1449362 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The use of proper orthogonal decomposition (POD) meshless RBF-FD technique to simulate the shallow water equations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
The use of proper orthogonal decomposition (POD) meshless RBF-FD technique to simulate the shallow water equations
چکیده انگلیسی
The main aim of this paper is to develop a fast and efficient local meshless method for solving shallow water equations in one- and two-dimensional cases. The mentioned equation has been classified in category of advection equations. The solutions of advection equations have some shock, thus, especial numerical methods should be employed for example discontinuous Galerkin and finite volume methods. Here, based on the proper orthogonal decomposition approach we want to construct a fast meshless method. To this end, we consider shallow water models and obtain a suitable time-discrete scheme based on the predictor-corrector technique. Then by applying the proper orthogonal decomposition technique a new set of basis functions can be built for the solution space in which the size of new solution space is less than the original problem. Thus, by employing the new bases the CPU time will be reduced. Some examples have been studied to show the efficiency of the present numerical technique.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 351, 15 December 2017, Pages 478-510
نویسندگان
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