Weinman, Keith und Ehrenfried, Klaus (2024) Preliminary CFD Validation of Unsteady Onflow Effects on Model Train Drag. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV, 154, Seiten 294-304. Springer Nature. 23. STAB-DGLR-Symposium 2022, 2022-11-09 - 2022-11-10, Berlin,Germany. doi: 10.1007/978-3-031-40482-5_28. ISBN 978-3-031-40481-8. ISSN 1612-2909.
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Offizielle URL: https://link.springer.com/book/10.1007/978-3-031-40482-5
Kurzfassung
The DLR NGT-Cargo concept aims to increase the rail share of the European freight traffic market. Computational Fluid Dynamics (CFD) is a useful tool in analysing high-speed operations which are an important part of this concept. Standards provide guidelines for CFD assessments at cross-wind conditions using the RANS (Reynolds-averaged Navier-Stokes) equations. The development of aerodynamic forces under unsteady on-flows should be analysed within the context of these standards. A major challenge in satisfying these guidelines arises because of the multi-scale nature of these flows which are characterized by a large range of energetically significant flow scales. Wind-tunnel measurements, focussed on the development of the aerodynamic forces acting on a train, are being currently performed on a 1:25 scaled NGT model in the cross-wind facility Seitenwindversuchsanlage G¨ottingen (SWG) located at the DLR G¨ottingen. A CFD study is running concurrently. The aim of this study is to assess the ability of CFD approaches to reproduce both the observed on-flow conditions as well as the aerodynamic drag of the vehicle. 1
elib-URL des Eintrags: | https://elib.dlr.de/192181/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
Zusätzliche Informationen: | ISSN 1612-2909 ISSN 1860-0824 (electronic) ISBN 978-3-031-40481-8 ISBN 978-3-031-40482-5 (eBook) | ||||||||||||||||||||||||
Titel: | Preliminary CFD Validation of Unsteady Onflow Effects on Model Train Drag | ||||||||||||||||||||||||
Autoren: |
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Datum: | 2024 | ||||||||||||||||||||||||
Erschienen in: | 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Band: | 154 | ||||||||||||||||||||||||
DOI: | 10.1007/978-3-031-40482-5_28 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 294-304 | ||||||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Nature | ||||||||||||||||||||||||
Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||
ISBN: | 978-3-031-40481-8 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Computational Fluid Dynamics, comparisons against exerimental drag measurement, force coefficient development, unsteady onflow, Delayed Detached Eddy Simulastio | ||||||||||||||||||||||||
Veranstaltungstitel: | 23. STAB-DGLR-Symposium 2022 | ||||||||||||||||||||||||
Veranstaltungsort: | Berlin,Germany | ||||||||||||||||||||||||
Veranstaltungsart: | nationale Konferenz | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 9 November 2022 | ||||||||||||||||||||||||
Veranstaltungsende: | 10 November 2022 | ||||||||||||||||||||||||
Veranstalter : | STAB/DGLR | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
HGF - Programm: | Verkehr | ||||||||||||||||||||||||
HGF - Programmthema: | Schienenverkehr | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | V SC Schienenverkehr | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | V - NGT BIT (alt) | ||||||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||||||||||
Hinterlegt von: | Weinman, Dr.phil. Keith | ||||||||||||||||||||||||
Hinterlegt am: | 16 Dez 2022 13:24 | ||||||||||||||||||||||||
Letzte Änderung: | 08 Aug 2024 15:27 |
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