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 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 …

Meshfree simulations of acoustic problems by a radial point interpolation method

X You, Q Gui, Q Zhang, Y Chai, W Li - Ocean Engineering, 2020 - Elsevier
The classical finite element approach cannot guarantee satisfactory accuracy for acoustic
problems at large wavenumbers on account of the numerical pollution error effect. This …

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 …

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 …

[HTML][HTML] Isogeometric boundary element for analyzing steady-state heat conduction problems under spatially varying conductivity and internal heat source

Q Zang, J Liu, W Ye, G Lin - Computers & Mathematics with Applications, 2020 - Elsevier
This paper proposes an isogeometric boundary element (IGABEM) with the aim to solve the
2D steady-state heat conduction problems under spatially varying conductivity and internal …

Optimized transmission conditions in domain decomposition methods with cross-points for Helmholtz equation

B Després, A Nicolopoulos, B Thierry - SIAM Journal on Numerical Analysis, 2022 - SIAM
We study a mathematical framework for the construction of domain decomposition methods
(DDM) for the model Helmholtz equation with high order transmission conditions and cross …

An efficient meshless boundary point interpolation method for acoustic radiation and scattering

L Chen, X Li - Computers & Structures, 2020 - Elsevier
An efficient application of the boundary point interpolation method (BPIM) to acoustic
radiation and scattering is presented. With the aid of a combined field integral equation, the …

A Continuous Analysis of Neumann--Neumann Methods: Scalability and New Coarse Spaces

F Chaouqui, MJ Gander, K Santugini-Repiquet - SIAM Journal on Scientific …, 2020 - SIAM
We present a new coarse space correction for the iterative Neumann--Neumann method.
We describe the method for general elliptic partial differential equations and perform the …

Flux reconstruction method for time-harmonic linear propagation problems: 1D a priori error analysis

M Rivet, S Pernet, S Tordeux - 2023 - hal.science
The Flux Reconstruction (FR) method is well established for hyperbolic equations in the
Computational Fluid Dynamics field, but has barely been studied for electromagnetism. In …