Dimond, Benjamin und Costantini, Marco und Risius, Steffen und Fuchs, Carsten und Klein, Christian (2018) Influence of suction on step-induced boundary-layer transition. In: 5th International Conference on Experimental Fluid Mechanics 2018 (68), Seiten 167-172. 5th International Conference on Experimental Fluid Mechanics 2018, 2018-07-02 - 2018-07-04, Munich, Germany. doi: 10.18726/2018_2. ISBN 978-3-943207-32-3.
PDF
- Nur DLR-intern zugänglich
890kB | |
PDF
- Nur DLR-intern zugänglich
985kB |
Offizielle URL: https://athene-forschung.unibw.de/124181
Kurzfassung
The influence of suction on step-induced boundary-layer transition has been experimentally investigated in the Cryogenic Ludwieg-Tube Goettingen at large chord Reynolds numbers (up to 16 MIllion), Mach numbers from 0.35 to 0.77 and various stream wise pressure gradients by means of Temperature-Sensitive Paint (TSP). Surface imperfections, implemented as combination of gap and forward facing step, caused transition to occur at a location more upstream than in case of a smooth surface (i.e. without gap and step). It was found that suction, achieved passively by exploiting the pressure difference between upper and lower side of the model, induced a movement of transition to a more downstream location than on the smooth configuration at the same test conditions. Thus, the effect of suction was to even overcompensate the adverse effect of the combination of gap and forward-facing step on boundary-layer transition.
elib-URL des Eintrags: | https://elib.dlr.de/122704/ | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
Titel: | Influence of suction on step-induced boundary-layer transition | ||||||||||||||||||||||||
Autoren: |
| ||||||||||||||||||||||||
Datum: | Juli 2018 | ||||||||||||||||||||||||
Erschienen in: | 5th International Conference on Experimental Fluid Mechanics 2018 | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
DOI: | 10.18726/2018_2 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 167-172 | ||||||||||||||||||||||||
Herausgeber: |
| ||||||||||||||||||||||||
Name der Reihe: | Conference Proceedings online | ||||||||||||||||||||||||
ISBN: | 978-3-943207-32-3 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Laminar-Turbulent Transition, Suction, Surface Imperfections, Temperature-Sensitive Paint | ||||||||||||||||||||||||
Veranstaltungstitel: | 5th International Conference on Experimental Fluid Mechanics 2018 | ||||||||||||||||||||||||
Veranstaltungsort: | Munich, Germany | ||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 2 Juli 2018 | ||||||||||||||||||||||||
Veranstaltungsende: | 4 Juli 2018 | ||||||||||||||||||||||||
Veranstalter : | Universität der Bundeswehr München | ||||||||||||||||||||||||
Institution: | Deutsches Zentrum für Luft- und Raumfahrt e.V. | ||||||||||||||||||||||||
Abteilung: | AS-EXV / AS-DSL | ||||||||||||||||||||||||
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 | ||||||||||||||||||||||||
Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||||||
Hinterlegt am: | 03 Dez 2018 17:08 | ||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:26 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags