کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
500623 | 863097 | 2006 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Implicit spectral element methods and Neumann–Neumann preconditioners for acoustic waves
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Implicit spectral element methods and Neumann–Neumann preconditioners for acoustic waves Implicit spectral element methods and Neumann–Neumann preconditioners for acoustic waves](/preview/png/500623.png)
چکیده انگلیسی
A numerical approximation of the acoustic wave equation with first order absorbing boundary conditions is considered. The discretization is based on conforming spectral elements in space and implicit finite differences in time. A stability analysis based on the energy method is developed for the fully discrete scheme. The linear system arising at each step is solved by the conjugate gradient method with Balancing Neumann–Neumann preconditioning. Several numerical results illustrate the stability and convergence properties of the approximation schemes, that result spectrally accurate in space and up to second-order in time, while the Neumann–Neumann solver at each time step is scalable and quasi-optimal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 19–22, 1 April 2006, Pages 2649–2673
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 19–22, 1 April 2006, Pages 2649–2673
نویسندگان
Elena Zampieri, Luca F. Pavarino,