An automatic perfectly matched layer for acoustic finite element simulations in convex domains of general shape

H Bériot, A Modave - International Journal for Numerical …, 2021 - Wiley Online Library
This article addresses the efficient finite element solution of exterior acoustic problems with
truncated computational domains surrounded by perfectly matched layers (PMLs). The PML …

Analysis of magnetic fluid heat transfer in biological tissues subjected to a semi-infinite region by artificial boundary method

C Bao, L Liu, J Zhu, L Feng, C ** 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-overlap** 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 …

A level set based topology optimization for finite unidirectional acoustic phononic structures using boundary element method

H Gao, J Liang, B Li, C Zheng, T Matsumoto - Computer Methods in …, 2021 - Elsevier
The paper presents a level set based topology optimization method for unidirectional
phononic structures with finite layers of lattice cells. Boundary element method (BEM) is …

A non-overlap** domain decomposition method with perfectly matched layer transmission conditions for the Helmholtz equation

A Royer, C Geuzaine, E Béchet, A Modave - Computer Methods in Applied …, 2022 - Elsevier
It is well-known that the convergence rate of non-overlap** domain decomposition
methods (DDMs) applied to the parallel finite-element solution of large-scale time-harmonic …

Local absorbing boundary conditions on fixed domains give order-one errors for high-frequency waves

J Galkowski, D Lafontaine… - IMA Journal of Numerical …, 2024 - academic.oup.com
We consider approximating the solution of the Helmholtz exterior Dirichlet problem for a
nontrap** obstacle, with boundary data coming from plane-wave incidence, by the …

Stability and convergence analysis of time-domain perfectly matched layers for the wave equation in waveguides

E Bécache, M Kachanovska - SIAM Journal on Numerical Analysis, 2021 - SIAM
This work is dedicated to the proof of stability and convergence of the Bérenger's perfectly
matched layers (PMLs) in the waveguides for an arbitrary nonnegative L^∞ dam** …

Corners and stable optimized domain decomposition methods for the Helmholtz problem

B Després, A Nicolopoulos, B Thierry - Numerische Mathematik, 2021 - Springer
We construct a new Absorbing Boundary Condition (ABC) adapted to solving the Helmholtz
equation in polygonal domains in dimension two. Quasi-continuity relations are obtained at …

A unified theory of non-overlap** Robin–Schwarz methods: Continuous and discrete, including cross points

C Pechstein - Journal of Scientific Computing, 2023 - Springer
Non-overlap** Schwarz methods with generalized Robin transmission conditions were
originally introduced by B. Després for time-harmonic wave propagation problems and have …

A BEM-based topology optimization for acoustic problems considering tangential derivative of sound pressure

H Gao, J Liang, C Zheng, H Lian… - Computer Methods in …, 2022 - Elsevier
This paper employs a new tangential derivative of boundary integral equation for the
optimization problems in the acoustic field with a objective function involving tangential …