This chapter presents an introduction to the solution of time-harmonic acoustic problems by
a boundary element method (BEM). Specifically, the Helmholtz equation with admittance …

An improved interpolating element-free Galerkin (IIEFG) method coupled with Modified
Dirichlet-to-Neumann (MDtN) boundary condition is presented in this paper for use in …

The Fast Multipole Boundary Element Method (FMBEM) reduces the O (N 2) computational
and memory complexity of the conventional BEM discretized with N boundary unknowns, to …

The discrete model in the standard finite element method (FEM) always exhibits stiffer
behavior than the actual continuous model. This leads to an unavoidable dispersion error …

A meshfree weak-form method based on combining a radial point interpolation method
(RPIM) and modified Dirichlet-to-Neumann (MDtN) boundary condition is proposed for use …

To quantify the influence of moving immersed media on acoustic radiation, this study
develops an efficient method for acoustic radiation with arbitrary immersed media interfaces …

A standard finite element method (FEM) is hindered by numerical dispersion error and fails
to achieve accurate solutions for underwater noise prediction at large wave numbers. This …

Unlike uncertainties stemming from loads and material properties, interface uncertainties
arising from variations in immersed media within the acoustic field can significantly alter the …

To improve the computational accuracy and eliminate the element matching in the traditional
method based on the finite and infinite elements, the coupling of the meshfree weak-form …

The discrete model in the traditional finite element method (FEM) inevitably behaves more
stiffly than the corresponding continuous model. This results in an unavoidable dispersion …