کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4644963 1632180 2015 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-accuracy finite-difference schemes for solving elastodynamic problems in curvilinear coordinates within multiblock approach
ترجمه فارسی عنوان
طرح های اختیاری با دقت بالا برای حل مشکلات الاستودینامیکی در مختصات منحنی در روش چند بلوک
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات محاسباتی
چکیده انگلیسی

We propose highly accurate finite-difference schemes for simulating wave propagation problems described by linear second-order hyperbolic equations. The schemes are based on the summation by parts (SBP) approach modified for applications with violation of input data smoothness. In particular, we derive and implement stable schemes for solving elastodynamic anisotropic problems described by the Navier wave equation in complex geometry. To enhance potential of the method, we use a general type of coordinate transformation and multiblock grids. We also show that the conventional spectral element method (SEM) can be treated as the multiblock finite-difference method whose blocks are the SEM cells with SBP operators on GLL grid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Numerical Mathematics - Volume 93, July 2015, Pages 176–194
نویسندگان
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