Dimond, Benjamin und Costantini, Marco und Risius, Steffen und Klein, Christian und Rein, Martin (2020) Experimental Investigation of the Delay of Gap- and Step-Induced Transition by Means of Suction. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, Seiten 165-174. Springer Nature. 21. STAB/DGLR Symposium 2018, 2018-11-06 - 2018-11-07, Darmstadt, Deutschland. doi: 10.1007/978-3-030-25253-3_16. ISBN 978-3-030-25252-6. ISSN 1612-2909.
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Offizielle URL: https://doi.org/10.1007/978-3-030-25253-3_16
Kurzfassung
The influence of suction on gap- and step-induced boundary-layer transition was investigated experimentally and systematically for large chord Reynolds numbers (up to 16×106) and various pressure gradients at Mach number 0.6. The experiments were conducted in the low-turbulence Cryogenic Ludwieg-Tube Göttingen with a two-dimensional wind-tunnel model. Transition is detected non-intrusively by means of temperature-sensitive paint. Forward-facing steps and spanwise gaps have caused transition to occur at a more upstream location as compared to a smooth configuration at the same test conditions. Applying suction through the gap, however, was shown to significantly delay transition and even overcompensate the adverse effect of steps and gaps. Further increasing suction rate shifts transition even more downstream until a certain value of suction is reached, above which there is effectively no change in transition location even for larger suction rates.
elib-URL des Eintrags: | https://elib.dlr.de/122973/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Zusätzliche Informationen: | Print ISBN 978-3-030-25252-6 Online ISBN 978-3-030-25253-3 ISSN-electronic 1860-0824 | ||||||||||||||||||||||||||||
Titel: | Experimental Investigation of the Delay of Gap- and Step-Induced Transition by Means of Suction | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2020 | ||||||||||||||||||||||||||||
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: | 142 | ||||||||||||||||||||||||||||
DOI: | 10.1007/978-3-030-25253-3_16 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 165-174 | ||||||||||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Nature | ||||||||||||||||||||||||||||
Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||||||
ISBN: | 978-3-030-25252-6 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Laminar-Turbulent Transition, Suction, Surface Imperfections, Temperature-Sensitive Paint | ||||||||||||||||||||||||||||
Veranstaltungstitel: | 21. STAB/DGLR Symposium 2018 | ||||||||||||||||||||||||||||
Veranstaltungsort: | Darmstadt, Deutschland | ||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 6 November 2018 | ||||||||||||||||||||||||||||
Veranstaltungsende: | 7 November 2018 | ||||||||||||||||||||||||||||
Veranstalter : | STAB/DGLR | ||||||||||||||||||||||||||||
Institution: | Deutsches Zentrum für Luft- und Raumfahrt e.V. | ||||||||||||||||||||||||||||
Abteilung: | AS-EXV / AS-HGK | ||||||||||||||||||||||||||||
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 - Simulation und Validierung (alt) | ||||||||||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren, GO Institut für Aerodynamik und Strömungstechnik > Hochgeschwindigkeitskonfigurationen, GO | ||||||||||||||||||||||||||||
Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||||||||||
Hinterlegt am: | 03 Dez 2018 14:25 | ||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:26 |
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