首页 | 本学科首页   官方微博 | 高级检索  
     


SPEED: SPectral Elements in Elastodynamics with Discontinuous Galerkin: a non‐conforming approach for 3D multi‐scale problems
Authors:I Mazzieri  M Stupazzini  R Guidotti  C Smerzini
Affiliation:1. Department of Mathematics, Politecnico di Milano, , Piazza Leonardo Da Vinci 32, 20133 Milan, Italy;2. Munich RE ‐ Geo Risk K?niginstr. 107, , 80802 Munich, Germany;3. Department of Civil and Environmental Engineering, Politecnico di Milano, , Piazza Leonardo Da Vinci 32, 20133 Milan, Italy
Abstract:This work presents a new high performance open‐source numerical code, namely SPectral Elements in Elastodynamics with Discontinuous Galerkin, to approach seismic wave propagation analysis in visco‐elastic heterogeneous three‐dimensional media on both local and regional scale. Based on non‐conforming high‐order techniques, such as the discontinuous Galerkin spectral approximation, along with efficient and scalable algorithms, the code allows one to deal with a non‐uniform polynomial degree distribution as well as a locally varying mesh size. Validation benchmarks are illustrated to check the accuracy, stability, and performance features of the parallel kernel, whereas illustrative examples are discussed to highlight the engineering applications of the method. The proposed method turns out to be particularly useful for a variety of earthquake engineering problems, such as modeling of dynamic soil structure and site‐city interaction effects, where accounting for multiscale wave propagation phenomena as well as sharp discontinuities in mechanical properties of the media is crucial. Copyright © 2013 John Wiley & Sons, Ltd.
Keywords:spectral element method  discontinuous Galerkin  high performance computing  seismic wave propagation  earthquake engineering
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号