Non-conforming high order approximations of the elastodynamics equation

被引：62

作者：

Antonietti, P. F. ^{[1
]}

Mazzieri, I. ^{[1
]}

Quarteroni, A. ^{[1
,3
]}

Rapetti, F. ^{[2
]}

机构：

[1] Politecn Milan, MOX Modelling & Sci Comp, Dept Math, I-20133 Milan, Italy

[2] Univ Nice Sophia Antipolis, Lab Math JA Dieudonne, F-06108 Nice, France

[3] Ecole Polytech Fed Lausanne, CMCS MATHICSE, CH-1015 Lausanne, Switzerland

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2012年 / 209卷

关键词：

Spectral methods; Non-conforming domain decomposition techniques; Computational seismology; Numerical approximations and analysis; FINITE-ELEMENT METHODS; DISCONTINUOUS GALERKIN METHOD; ELASTIC-WAVE PROPAGATION; DOMAIN DECOMPOSITION; UNSTRUCTURED MESHES; DISPERSION ANALYSIS; LINEAR ELASTICITY; SCALAR; 2D;

D O I：

10.1016/j.cma.2011.11.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we formulate and analyze two non-conforming high order strategies for the approximation of elastic wave problems in heterogeneous media, namely the Mortar Spectral Element Method and the Discontinuous Galerkin Spectral Element Method. Starting from a common variational formulation we make a full comparison of the two techniques from the points of view of accuracy, convergence, grid dispersion and stability. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：212 / 238

页数：27

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