Numerical-asymptotic boundary integral methods in high-frequency acoustic scattering
In this article we describe recent progress on the design, analysis and implementation of
hybrid numerical-asymptotic boundary integral methods for boundary value problems for the …
hybrid numerical-asymptotic boundary integral methods for boundary value problems for the …
A new weak Galerkin finite element method for the Helmholtz equation
An absolutely stable weak Galerkin (WG) finite element method is introduced and analysed
for the Helmholtz equation. This means that the stability and well-posedness of the method …
for the Helmholtz equation. This means that the stability and well-posedness of the method …
A novel nonlinear solution for the polygon scaled boundary finite element method and its application to geotechnical structures
K Chen, D Zou, X Kong, A Chan, Z Hu - Computers and Geotechnics, 2017 - Elsevier
The polygon scaled boundary finite element method is semi-analytical and known for its
high precision. However, the material nonlinearity cannot be maintained because this …
high precision. However, the material nonlinearity cannot be maintained because this …
Fast model order reduction boundary element method for large-scale acoustic systems involving surface impedance
X Xie, W Wang, K He, G Li - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
This paper presents a newly developed fast model order reduction boundary element
method (FMORBEM) for three-dimensional acoustic wave problems with the impedance …
method (FMORBEM) for three-dimensional acoustic wave problems with the impedance …
Wave-number-explicit bounds in time-harmonic scattering
SN Chandler-Wilde, P Monk - SIAM Journal on Mathematical Analysis, 2008 - SIAM
In this paper we consider the problem of scattering of time-harmonic acoustic waves by a
bounded, sound soft obstacle in two and three dimensions, studying dependence on the …
bounded, sound soft obstacle in two and three dimensions, studying dependence on the …
Condition number estimates for combined potential integral operators in acoustics and their boundary element discretisation
T Betcke, SN Chandler‐Wilde… - … Methods for Partial …, 2011 - Wiley Online Library
We consider the classical coupled, combined‐field integral equation formulations for time‐
harmonic acoustic scattering by a sound soft bounded obstacle. In recent work, we have …
harmonic acoustic scattering by a sound soft bounded obstacle. In recent work, we have …
Condition number estimates for combined potential boundary integral operators in acoustic scattering
We study the classical combined field integral equation formulations for time-harmonic
acoustic scattering by a sound soft bounded obstacle, namely the indirect formulation due to …
acoustic scattering by a sound soft bounded obstacle, namely the indirect formulation due to …
A numerical study on the weak Galerkin method for the Helmholtz equation
A weak Galerkin (WG) method is introduced and numerically tested for the Helmholtz
equation. This method is flexible by using discontinuous piecewise polynomials and retains …
equation. This method is flexible by using discontinuous piecewise polynomials and retains …
A wavenumber independent boundary element method for an acoustic scattering problem
S Langdon, SN Chandler-Wilde - SIAM Journal on Numerical Analysis, 2006 - SIAM
In this paper we consider the impedance boundary value problem for the Helmholtz
equation in a half-plane with piecewise constant boundary data, a problem which models …
equation in a half-plane with piecewise constant boundary data, a problem which models …
Analysis of a spectral-Galerkin approximation to the Helmholtz equation in exterior domains
An error analysis is presented for the spectral-Galerkin method to the Helmholtz equation in
2-and 3-dimensional exterior domains. The problem in unbounded domains is first reduced …
2-and 3-dimensional exterior domains. The problem in unbounded domains is first reduced …