A fast time-domain boundary element method for three-dimensional electromagnetic scattering problems

T Takahashi - Journal of Computational Physics, 2023 - Elsevier
This paper proposes a fast time-domain boundary element method (TDBEM) to solve three-
dimensional transient electromagnetic scattering problems regarding perfectly electric …

A three‐dimensional shape optimization for transient acoustic scattering problems using the time‐domain boundary element method

T Takahashi, N Miyazawa… - International Journal for …, 2023 - Wiley Online Library
We develop a three‐dimensional shape optimization (SO) framework for the wave equation
with taking the unsteadiness into account. Resorting to the adjoint variable method, we …

A time‐domain boundary element method for the 3D dissipative wave equation: Case of Neumann problems

T Takahashi - International Journal for Numerical Methods in …, 2023 - Wiley Online Library
The present article proposes a time‐domain boundary element method (TDBEM) for the
three‐dimensional (3D) dissipative wave equation (DWE). Although the fundamental …

Space-time boundary element methods for the heat equation

S Dohr, K Niino, O Steinbach - Space-Time Methods, 2019 - degruyter.com
In this chapter, we describe a space-time boundary element method for the numerical
solution of the time-dependent heat equation. As model problem, we consider the initial …

Transient heat conduction analysis using the NURBS-enhanced scaled boundary finite element method and modified precise integration method

G Lin, P Li, J Liu, P Zhang - Acta Mechanica Solida Sinica, 2017 - Springer
The Non-uniform rational B-spline (NURBS) enhanced scaled boundary finite element
method in combination with the modified precise integration method is proposed for the …

A parallel fast multipole method for a space-time boundary element method for the heat equation

R Watschinger, M Merta, G Of, J Zapletal - SIAM Journal on Scientific …, 2022 - SIAM
We present a novel approach to the parallelization of the parabolic fast multipole method for
a space-time boundary element method for the heat equation. We exploit the special …

[HTML][HTML] A parallel space–time boundary element method for the heat equation

S Dohr, J Zapletal, G Of, M Merta… - Computers & Mathematics …, 2019 - Elsevier
In this paper we introduce a new parallel solver for the weakly singular space–time
boundary integral equation for the heat equation. The space–time boundary mesh is …

Fast integral equation methods for linear and semilinear heat equations in moving domains

J Wang, L Greengard, S Jiang… - arXiv preprint arXiv …, 2019 - arxiv.org
We present a family of integral equation-based solvers for the linear or semilinear heat
equation in complicated moving (or stationary) geometries. This approach has significant …

Quadrature for parabolic Galerkin BEM with moving surfaces

N Manson, J Tausch - Computers & Mathematics with Applications, 2019 - Elsevier
The successful implementation of the Galerkin Boundary Element Method hinges on the
accurate and effective quadrature of the influence coefficients. For parabolic boundary …

A fast sparse grid based space–time boundary element method for the nonstationary heat equation

H Harbrecht, J Tausch - Numerische Mathematik, 2018 - Springer
This article presents a fast sparse grid based space–time boundary element method for the
solution of the nonstationary heat equation. We make an indirect ansatz based on the …