Weinman, K.A und Fragner, M.M und Deiterding, Ralf und Heine, Daniela und Fey, Uwe und Braenstroem, F. und Schultz, B. und Wagner, Claus (2018) Assessment of the mesh refinement influence on the computed flow-fields about a model train in comparison with wind tunnel measurements. Journal of Wind Engineering and Industrial Aerodynamics, 179, Seiten 102-117. Elsevier. doi: 10.1016/j.jweia.2018.05.005. ISSN 0167-6105.
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Offizielle URL: http://dx.doi.org/10.1016/j.jweia.2018.05.005
Kurzfassung
A consistent mesh refinement study, relating to the prediction of aerodynamic forces about an experimentally validated reference train geometry, is presented in this paper. The flow about a high-speed train has a multi-scale character which poses challenges for the design of computationally effective meshes. The purpose of this study is to assist in the development of guidelines for effective drag prediction of high-speed trains using numerical simulation. These guidelines should assist CFD practitioners by identifying the regions of the mesh that are critical for the correct estimation of drag as well as providing information on appropriate mesh characteristics, such as volume and surface element length scales. Numerical assessments are validated against an experimental drag measurement program and the extent to which RANS is sufficiently predictive for industrial design is discussed. The results obtained in the work suggest that the mesh about the train nose is essential for the proper assessment of the aerodynamic drag acting on the vehicle.
elib-URL des Eintrags: | https://elib.dlr.de/120360/ | ||||||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||||||
Zusätzliche Informationen: | Online: 28. Mai 2018 | ||||||||||||||||||||||||||||||||||||
Titel: | Assessment of the mesh refinement influence on the computed flow-fields about a model train in comparison with wind tunnel measurements | ||||||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | August 2018 | ||||||||||||||||||||||||||||||||||||
Erschienen in: | Journal of Wind Engineering and Industrial Aerodynamics | ||||||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||||||
Band: | 179 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1016/j.jweia.2018.05.005 | ||||||||||||||||||||||||||||||||||||
Seitenbereich: | Seiten 102-117 | ||||||||||||||||||||||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||||||||||||||||||||||
Name der Reihe: | Elsevier | ||||||||||||||||||||||||||||||||||||
ISSN: | 0167-6105 | ||||||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
Stichwörter: | Aerodynamic drag; Mesh refinement; Mesh sensitivity; PIV | ||||||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||||||
HGF - Programm: | Verkehr | ||||||||||||||||||||||||||||||||||||
HGF - Programmthema: | Bodengebundener Verkehr (alt) | ||||||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | V - Next Generation Train III (alt) | ||||||||||||||||||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||||||||||
Hinterlegt von: | Weinman, Dr.phil. Keith | ||||||||||||||||||||||||||||||||||||
Hinterlegt am: | 27 Jun 2018 09:55 | ||||||||||||||||||||||||||||||||||||
Letzte Änderung: | 02 Nov 2023 09:54 |
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