Schlüß, Daniel und Frey, Christian (2019) Time domain implementation of a spectral non-reflecting boundary condition for unsteady turbomachinery flows. 24th ISABE Conference, 22.-27. Sep. 2019, Canberra, Australien.
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Kurzfassung
We show the implementation of a spectral, non-reflecting boundary condition (NRBC) for time marching, unsteady simulations of flows in turbomachinery com- ponents. It is well known that reflections from artificial boundaries can impair the prediction of unsteady flow phenomena. In the context of turbomachinery flows, some frequency domain methods address this issue by means of spectral NRBC. Since these NRBC are non-local in space and time, their implementation in time domain solvers is not straightforward. We elaborate on these difficulties and on how we deal with them. Applications of the NRBC to a two-dimensional flutter configuration and to the prediction of rotor-stator interactions of a real fan configuration are shown. The most important feature of the presented method is the combination of increased robustness and good reflection properties.
elib-URL des Eintrags: | https://elib.dlr.de/129807/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Time domain implementation of a spectral non-reflecting boundary condition for unsteady turbomachinery flows | ||||||||||||
Autoren: |
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Datum: | Mai 2019 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Name der Reihe: | Proceedings of the 24th ISABE Conference | ||||||||||||
Status: | akzeptierter Beitrag | ||||||||||||
Stichwörter: | Non-reflecting boundary conditions, Unsteady flows, CFD methods, Aeroelasticity, Aeroacoustics | ||||||||||||
Veranstaltungstitel: | 24th ISABE Conference | ||||||||||||
Veranstaltungsort: | Canberra, Australien | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsdatum: | 22.-27. Sep. 2019 | ||||||||||||
Veranstalter : | ISABE - International Society For Air Breathing Engines | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Antriebssysteme | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L ER - Engine Research | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt) | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Antriebstechnik > Numerische Methoden | ||||||||||||
Hinterlegt von: | Schlüß, Daniel | ||||||||||||
Hinterlegt am: | 28 Okt 2019 07:44 | ||||||||||||
Letzte Änderung: | 29 Mär 2023 00:43 |
Verfügbare Versionen dieses Eintrags
- Time domain implementation of a spectral non-reflecting boundary condition for unsteady turbomachinery flows. (deposited 28 Okt 2019 07:44) [Gegenwärtig angezeigt]
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