دورية أكاديمية
A high-order discontinuous Galerkin approach to the elasto-acoustic problem
| العنوان: | A high-order discontinuous Galerkin approach to the elasto-acoustic problem |
|---|---|
| المؤلفون: | Antonietti P. F., Bonaldi F., Mazzieri I. |
| المساهمون: | Antonietti, P. F., Bonaldi, F., Mazzieri, I. |
| سنة النشر: | 2020 |
| المجموعة: | RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano |
| مصطلحات موضوعية: | Acoustic, Discontinuous Galerkin method, Elastodynamic, Polygonal and polyhedral grid, Wave propagation |
| الوصف: | We address the spatial discretization of an evolution problem arising from the coupling of elastic and acoustic wave propagation phenomena by employing a discontinuous Galerkin scheme on polygonal and polyhedral meshes. The coupled nature of the problem is ascribed to suitable transmission conditions imposed at the interface between the solid (elastic) and fluid (acoustic) domains. We state and prove a well-posedness result for the strong formulation of the problem, present a stability analysis for the semi-discrete formulation, and finally prove an a priori hp-version error estimate for the resulting formulation in a suitable (mesh-dependent) energy norm. We also discuss the time integration scheme employed to obtain the fully discrete system. The convergence results are validated by numerical experiments carried out in a two-dimensional setting. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000496915700027; volume:358; firstpage:1; lastpage:29; numberofpages:29; journal:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING; http://hdl.handle.net/11311/1118740Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85072520174; http://www.journals.elsevier.com/computer-methods-in-applied-mechanics-and-engineeringTest/ |
| DOI: | 10.1016/j.cma.2019.112634 |
| الإتاحة: | https://doi.org/10.1016/j.cma.2019.112634Test http://hdl.handle.net/11311/1118740Test http://www.journals.elsevier.com/computer-methods-in-applied-mechanics-and-engineeringTest/ |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CF614F6A |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.cma.2019.112634 |
|---|