کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4967686 1449380 2017 44 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Method of moving frames to solve the shallow water equations on arbitrary rotating curved surfaces
ترجمه فارسی عنوان
روش حرکت فریم برای حل معادلات آب کم عمق در سطوح منحنی چرخش دلخواه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
A novel numerical scheme is proposed to solve the shallow water equations (SWEs) on arbitrary rotating curved surfaces. Based on the method of moving frames (MMF) in which the geometry is represented by orthonormal vectors, the proposed scheme not only has the fewest dimensionality both in space and time, but also does not require either of metric tensors, composite meshes, or the ambient space. The MMF-SWE formulation is numerically discretized using the discontinuous Galerkin method of arbitrary polynomial order p in space and an explicit Runge-Kutta scheme in time. The numerical model is validated against six standard tests on the sphere and the optimal order of convergence of p+1 is numerically demonstrated. The MMF-SWE scheme is also demonstrated for its efficiency and stability on the general rotating surfaces such as ellipsoid, irregular, and non-convex surfaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 333, 15 March 2017, Pages 1-23
نویسندگان
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