Numerical modeling of mechanical wave propagation

G Seriani, SP Oliveira - La Rivista del Nuovo Cimento, 2020 - Springer
The numerical modeling of mechanical waves is currently a fundamental tool for the study
and investigation of their propagation in media with heterogeneous physical properties …

Corner treatments for high-order local absorbing boundary conditions in high-frequency acoustic scattering

A Modave, C Geuzaine, X Antoine - Journal of Computational Physics, 2020 - Elsevier
This paper deals with the design and validation of accurate local absorbing boundary
conditions set on convex polygonal and polyhedral computational domains for the finite …

A non-overlapping domain decomposition method with high-order transmission conditions and cross-point treatment for Helmholtz problems

A Modave, A Royer, X Antoine, C Geuzaine - Computer Methods in Applied …, 2020 - Elsevier
A non-overlapping domain decomposition method (DDM) is proposed for the parallel finite-
element solution of large-scale time-harmonic wave problems. It is well-known that the …

Solving the discretised neutron diffusion equations using neural networks

TRF Phillips, CE Heaney, B Chen… - International Journal …, 2023 - Wiley Online Library
This paper presents a new approach which uses the tools within artificial intelligence (AI)
software libraries as an alternative way of solving partial differential equations (PDEs) that …

A local collocation method to construct Dirichlet-type absorbing boundary conditions for transient scalar wave propagation problems

A Shojaei, F Mossaiby, M Zaccariotto… - Computer Methods in …, 2019 - Elsevier
This paper introduces an effective way to equip the standard finite element method (FEM) for
the solution of transient scalar wave propagation problems in unbounded domains. Similar …

A weight-adjusted discontinuous Galerkin method for the poroelastic wave equation: Penalty fluxes and micro-heterogeneities

K Shukla, J Chan, MV de Hoop, P Jaiswal - Journal of Computational …, 2020 - Elsevier
We introduce a high-order weight-adjusted discontinuous Galerkin (WADG) scheme for the
numerical solution of three-dimensional (3D) wave propagation problems in anisotropic …

Hybrid absorbing scheme based on hyperelliptical layers with non-reflecting boundary conditions in scalar wave equations

RA Salas, ALF da Silva, LFN de Sá… - Applied Mathematical …, 2023 - Elsevier
Modeling unbounded or semi-infinite media with numerical methods, such as finite
elements, requires avoiding that waves pass through the boundaries of the truncated …

Weight‐adjusted discontinuous Galerkin methods: Matrix‐valued weights and elastic wave propagation in heterogeneous media

J Chan - International Journal for Numerical Methods in …, 2018 - Wiley Online Library
Weight‐adjusted inner products are easily invertible approximations to weighted L 2 inner
products. These approximations can be paired with a discontinuous Galerkin (DG) …

Stability and convergence analysis of artificial boundary conditions for the Schrödinger equation on a rectangular domain

G Pang, Y Yang, X Antoine, S Tang - Mathematics of Computation, 2021 - ams.org
Based on the semi-discrete artificial boundary condition introduced by Ji, Yang, and Antoine
[Comput. Phys. Commun. 222 (2018), pp. 84–93] for the two-dimensional free Schrödinger …

An efficient domain decomposition method with cross-point treatment for Helmholtz problems

A Modave, X Antoine, C Geuzaine - CSMA 2019-14e Colloque National …, 2019 - hal.science
The parallel finite-element solution of large-scale time-harmonic scattering problems is
addressed with a non-overlapping domain decomposition method. The efficiency of this …