[HTML][HTML] Enhanced Discrete Ordinates Approach for Mitigating Shadowing Effects in Obstructed Gas-Filled Spaces: Implications for Astrophysical and Industrial …

T Gassoumi, UF Alqsair, R Said - Results in Engineering, 2024 - Elsevier
This article introduces a novel quadrature scheme for the discrete ordinates method (DOM)
called Uniform Constant Weight Quadrature (UCWQ). A new version of the discrete …

A fast multi-layer boundary element method for direct numerical simulation of sound propagation in shallow water environments

C Li, BK Campbell, Y Liu, DKP Yue - Journal of Computational Physics, 2019 - Elsevier
Abstract Direct three-dimensional (3D) numerical simulations of acoustic fields in range-
dependent shallow water environments remains a challenge due to environmental …

Windowed Green function method for the Helmholtz equation in the presence of multiply layered media

OP Bruno, C Pérez-Arancibia - Proceedings of the …, 2017 - royalsocietypublishing.org
This paper presents a new methodology for the solution of problems of two-and three-
dimensional acoustic scattering (and, in particular, two-dimensional electromagnetic …

Modeling three-dimensional underwater acoustic propagation over multi-layered fluid seabeds using the equivalent source method

T He, S Mo, E Fang, M Wang, R Zhang - The Journal of the Acoustical …, 2021 - pubs.aip.org
This paper develops an efficient three-dimensional (3D) underwater acoustic propagation
model with multi-layered fluid seabeds based on the equivalent source method (ESM). It …

Robust fast direct integral equation solver for quasi-periodic scattering problems with a large number of layers

MH Cho, AH Barnett - Optics express, 2015 - opg.optica.org
We present a new boundary integral formulation for time-harmonic wave diffraction from two-
dimensional structures with many layers of arbitrary periodic shape, such as multilayer …

[图书][B] Windowed integral equation methods for problems of scattering by defects and obstacles in layered media

CAP Arancibia - 2017 - search.proquest.com
This thesis concerns development of efficient high-order boundary integral equation
methods for the numerical solution of problems of acoustic and electromagnetic scattering in …

Taylor expansion based fast multipole method for 3-D Helmholtz equations in layered media

B Wang, D Chen, B Zhang, W Zhang, MH Cho… - Journal of Computational …, 2020 - Elsevier
In this paper, we develop a Taylor expansion (TE) based fast multipole method (FMM) for
low frequency 3D Helmholtz Green's function in layered media. Two forms of Taylor …

A fast solver for multi-particle scattering in a layered medium

J Lai, M Kobayashi, L Greengard - Optics express, 2014 - opg.optica.org
In this paper, we consider acoustic or electromagnetic scattering in two dimensions from an
infinite three-layer medium with thousands of wavelength-size dielectric particles embedded …

Efficient and accurate computation of electric field dyadic green's function in layered media

MH Cho, W Cai - Journal of Scientific Computing, 2017 - Springer
Concise and explicit formulas for dyadic Green's functions, representing the electric and
magnetic fields due to a dipole source placed in layered media, are derived in this paper …

Robust fast direct integral equation solver for three-dimensional doubly periodic scattering problems with a large number of layers

B Wu, MH Cho - Journal of Computational Physics, 2023 - Elsevier
Frequency-domain wave scattering problems that arise in acoustics and electromagnetism
can be often described by the Helmholtz equation. This work presents a boundary integral …