An open-source Boundary Element framework for large-scale viscothermal acoustics

Mikkel Paltorp*, Vicente Cutanda Henriquez

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

BoundaryIntegralEquations.jl is an open source software library aimed at solving the Kirchhoff-Helmholtz Integral Equation using the collocation Boundary Element Method (BEM). The software is written in the Julia programming language, making it both easy to use and maintain while also being computationally efficient. The package builds upon the ideas of the OpenBEM software, but adds on additional functionality such as the Fast Multipole Method (FMM) and sparse assembly of all matrices used in the Kirchhoff Decomposition (KD) description of viscous and thermal losses. As such the package takes the first steps towards large-scale BEM computations including viscous and thermal losses. The package is validated using simple geometries, such as cuboids and spheres, where an analytical solution exist.

Original languageEnglish
Title of host publicationProceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023
PublisherEuropean Acoustics Association, EAA
Publication date2023
Pages5651-5658
ISBN (Electronic)9788888942674
DOIs
Publication statusPublished - 2023
Event10th Convention of the European Acoustics Association - Politecnico di Torino, Torino, Italy
Duration: 11 Sept 202315 Sept 2023
https://www.fa2023.org/

Conference

Conference10th Convention of the European Acoustics Association
LocationPolitecnico di Torino
Country/TerritoryItaly
CityTorino
Period11/09/202315/09/2023
Internet address
SeriesProceedings of Forum Acusticum
ISSN2221-3767

Bibliographical note

Publisher Copyright:
© 2023 Mikkel Paltorp et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Keywords

  • Boundary element method
  • Fast multipole method
  • Open-source
  • Viscothermal losses

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