Klinner, Joachim und Schroll, Michael und Morsbach, Christian und Möller, Felix und Willert, Christian (2018) Experimental and numerical investigation of 3-D corner separation in a channel flow with adverse pressure gradient. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 12 (142), Seiten 663-673. Springer Nature. 21. DGLR- Fachsymposium der STAB, 2018-11-06 - 2018-11-07, Darmstadt. doi: 10.1007/978-3-030-25253-3_63. ISBN 978-3-030-25252-6. ISSN 1612-2909.
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Offizielle URL: https://link.springer.com/chapter/10.1007/978-3-030-25253-3_63
Kurzfassung
Measurements of a plane one-sided diffuser with a variable expansion ratio are compared with RANS simulations at a Reynolds number of 51,000. Two-component PIV provides boundary conditions and a global validation of mean velocities. Profile PIV is applied to evaluate the wall shear stress and to measure turbulence statistics. Typical measurement uncertainties found in the buffer layer and in the separation region are below 1% for the mean and below 6% for the Reynolds stresses. Consistency of turbulence statistics is demonstrated by comparison with DNS. A first comparison with RANS simulations reveals significant differences between the eddy viscosity model and both Reynolds stress models, which predict qualitatively different developments of the vortex system over the corner separation.
elib-URL des Eintrags: | https://elib.dlr.de/123719/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Titel: | Experimental and numerical investigation of 3-D corner separation in a channel flow with adverse pressure gradient | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 6 November 2018 | ||||||||||||||||||||||||||||
Erschienen in: | 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
Band: | 12 | ||||||||||||||||||||||||||||
DOI: | 10.1007/978-3-030-25253-3_63 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 663-673 | ||||||||||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Nature | ||||||||||||||||||||||||||||
Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design-New Results in Numerical and Experimental Fluid Mechanics- | ||||||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||||||
ISBN: | 978-3-030-25252-6 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | particle image velocimetry, wall shear stress, skin friction, RANS, Reynolds stress model, PIV, TRACE, validation experiment, adverse pressure gradient, APG | ||||||||||||||||||||||||||||
Veranstaltungstitel: | 21. DGLR- Fachsymposium der STAB | ||||||||||||||||||||||||||||
Veranstaltungsort: | Darmstadt | ||||||||||||||||||||||||||||
Veranstaltungsart: | nationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 6 November 2018 | ||||||||||||||||||||||||||||
Veranstaltungsende: | 7 November 2018 | ||||||||||||||||||||||||||||
Veranstalter : | TU Darmstadt | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Flugzeuge | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - VicToria (alt) | ||||||||||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Antriebstechnik > Triebwerksmesstechnik | ||||||||||||||||||||||||||||
Hinterlegt von: | Klinner, Dr.-Ing. Joachim | ||||||||||||||||||||||||||||
Hinterlegt am: | 17 Dez 2018 09:58 | ||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:27 |
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