Autor(en): | Schäffner, Mathias Schweizer, Ben Tjandrawidjaja, Yohanes |
Titel: | A radiation box domain truncation scheme for the wave equation |
Sprache (ISO): | en |
Zusammenfassung: | We consider the wave equation in an unbounded domain and are interested in domain truncation methods. Our aim is to develop a numerical scheme that allows calculations for truncated waveguide geometries with periodic coefficient functions. The scheme is constructed with radiation boxes that are attached to the artificially introduced boundaries. A Dirichlet-to-Neumann operator N is calculated in these radiation boxes. Efficiency of the scheme is obtained by calculating N not with an iteration, but with a single run through the time interval. We observe speed-up factors of up to 20 in comparison to calculations without domain truncation. |
Schlagwörter: | wave equation transparent boundary condition domain truncation |
URI: | http://hdl.handle.net/2003/40843 http://dx.doi.org/10.17877/DE290R-22700 |
Erscheinungsdatum: | 2022-03 |
Enthalten in den Sammlungen: | Preprints der Fakultät für Mathematik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
boxwave-oneswipe-preprint-2_GESAMT.pdf | DNB | 773.43 kB | Adobe PDF | Öffnen/Anzeigen |
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