A review of the spectral, pseudo‐spectral, finite‐difference and finite‐element modelling techniques for geophysical imaging

J Virieux, H Calandra, RÉ Plessix - Geophysical Prospecting, 2011 - earthdoc.org
Modelling methods are nowadays at the heart of any geophysical interpretation approach.
These are heavily relied upon by imaging techniques in elastodynamics and …

Non-conforming high order approximations of the elastodynamics equation

PF Antonietti, I Mazzieri, A Quarteroni… - Computer Methods in …, 2012 - Elsevier
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 …

Stability of the high-order finite elements for acoustic or elastic wave propagation with high-order time stepping

JD De Basabe, MK Sen - Geophysical Journal International, 2010 - academic.oup.com
We investigate the stability of some high-order finite element methods, namely the spectral
element method and the interior-penalty discontinuous Galerkin method (IP-DGM), for …

Locally implicit discontinuous Galerkin method for time domain electromagnetics

V Dolean, H Fahs, L Fezoui, S Lanteri - Journal of Computational Physics, 2010 - Elsevier
In the recent years, there has been an increasing interest in discontinuous Galerkin time
domain (DGTD) methods for the solution of the unsteady Maxwell equations modeling …

[HTML][HTML] Explicit exactly energy-conserving methods for Hamiltonian systems

S Bilbao, M Ducceschi, F Zama - Journal of Computational Physics, 2023 - Elsevier
For Hamiltonian systems, simulation algorithms that exactly conserve numerical energy or
pseudo-energy have seen extensive investigation. Most available methods either require …

[图书][B] Finite element and discontinuous Galerkin methods for transient wave equations

G Cohen, S Pernet - 2017 - Springer
For a long time, wave equations in general and Maxwell's equations in particular were
solved in the time-harmonic domain 1 by finite element methods (FEM). Equations in time …

Combination of the discontinuous Galerkin method with finite differences for simulation of seismic wave propagation

V Lisitsa, V Tcheverda, C Botter - Journal of Computational Physics, 2016 - Elsevier
We present an algorithm for the numerical simulation of seismic wave propagation in models
with a complex near surface part and free surface topography. The approach is based on the …

Optimal energy conserving local discontinuous Galerkin methods for second-order wave equation in heterogeneous media

CS Chou, CW Shu, Y Xing - Journal of Computational Physics, 2014 - Elsevier
Solving wave propagation problems within heterogeneous media has been of great interest
and has a wide range of applications in physics and engineering. The design of numerical …

[HTML][HTML] Moment fitted cut spectral elements for explicit analysis of guided wave propagation

S Nicoli, K Agathos, E Chatzi - Computer Methods in Applied Mechanics …, 2022 - Elsevier
In this work, a method for the simulation of guided wave propagation in solids defined by
implicit surfaces is presented. The method employs structured grids of spectral elements in …

Optimal error estimates for the fully discrete interior penalty DG method for the wave equation

MJ Grote, D Schötzau - Journal of Scientific Computing, 2009 - Springer
In Grote et al.(SIAM J. Numer. Anal., 44: 2408–2431, 2006) a symmetric interior penalty
discontinuous Galerkin (DG) method was presented for the time-dependent wave equation …