Benchmarking preconditioned boundary integral formulations for acoustics

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dc.contributor.author't Wout, Elwin
dc.contributor.authorHaqshenas, Seyyed R.
dc.contributor.authorGelat, Pierre
dc.contributor.authorBetcke, Timo
dc.contributor.authorSaffari, Nader
dc.date.accessioned2025-01-20T22:15:41Z
dc.date.available2025-01-20T22:15:41Z
dc.date.issued2021
dc.description.abstractThe boundary element method (BEM) is an efficient numerical method for simulating harmonic wave propagation. It uses boundary integral formulations of the Helmholtz equation at the interfaces of piecewise homogeneous domains. The discretization of its weak formulation leads to a dense system of linear equations, which is typically solved with an iterative linear method such as GMRES. The application of BEM to simulating wave propagation through large-scale geometries is only feasible when compression and preconditioning techniques reduce the computational footprint. Furthermore, many different boundary integral equations exist that solve the same boundary value problem. The choice of preconditioner and boundary integral formulation is often optimized for a specific configuration, depending on the geometry, material characteristics, and driving frequency. On the one hand, the design flexibility for the BEM can lead to fast and accurate schemes. On the other hand, efficient and robust algorithms are difficult to achieve without expert knowledge of the BEM intricacies. This study surveys the design of boundary integral formulations for acoustics and their acceleration with operator preconditioners. Extensive benchmarks provide valuable information on the computational characteristics of several hundred different models for multiple reflection and transmission of acoustic waves.
dc.fuente.origenWOS
dc.identifier.doi10.1002/nme.6777
dc.identifier.eissn1097-0207
dc.identifier.issn0029-5981
dc.identifier.urihttps://doi.org/10.1002/nme.6777
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94513
dc.identifier.wosidWOS:000673024100001
dc.issue.numero20
dc.language.isoen
dc.pagina.final5897
dc.pagina.inicio5873
dc.revistaInternational journal for numerical methods in engineering
dc.rightsacceso restringido
dc.subjectacoustics
dc.subjectintegral equations
dc.subjectlinear solvers
dc.titleBenchmarking preconditioned boundary integral formulations for acoustics
dc.typeartículo
dc.volumen122
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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