التفاصيل البيبلوغرافية
| العنوان: |
Spectral-domain decomposition methods for the solution of acoustic and elastic wave equations |
| المؤلفون: |
E. Faccioli, F. Maggio, A. Tagliani, QUARTERONI, ALFIO MARIA |
| المساهمون: |
E., Faccioli, F., Maggio, Quarteroni, ALFIO MARIA, A., Tagliani |
| سنة النشر: |
1996 |
| المجموعة: |
RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano |
| مصطلحات موضوعية: |
Acoustic wave propagation, Chebyshev approximation, Convergence of numerical methods, Elastic waves, Geophysics, Variational techniques |
| الوصف: |
A new spectral-domain decomposition method is presented for acoustic and elastodynamic wave propagation in 2-D heterogeneous media. Starting from a variational formulation of the problem, two different approaches are proposed for the spatial discretization: a mixed Fourier-Legendre and a full Legendre collocation. The matching conditions at subdomain interfaces are carefully analyzed, and the stability and efficiency of time-advancing schemes are investigated. The numerical validation with some significant test cases illustrates the accuracy, flexibility, and robustness of our methods. These allow the treatment of complex geometries and heterogeneous media while retaining spectral accuracy. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| العلاقة: |
volume:61; issue:4; firstpage:1160; lastpage:1172; journal:GEOPHYSICS; http://hdl.handle.net/11311/668761Test |
| الإتاحة: |
http://hdl.handle.net/11311/668761Test |
| رقم الانضمام: |
edsbas.64B0A2F1 |
| قاعدة البيانات: |
BASE |
