Klein, Christian und Risius, Steffen und Henne, Ulrich und Ondrus, Vladimir (2024) Determination of the response time of TSP in cryogenic conditions. In: AIAA SciTech 2024 Forum (1093), Seiten 1-12. 2024 AIAA SciTech, 2024-01-08 - 2024-01-12, Orlando, Florida, USA. doi: 10.2514/6.2024-1093. ISBN 978-1-62410-711-5.
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Offizielle URL: https://doi.org/10.2514/6.2024-1093
Kurzfassung
The capability of the Temperature-Sensitive Paint (TSP) method for application in unsteady flows in cryogenic wind tunnels was investigated by carrying out experiments in the Cryogenic Ludwieg-Tube Göttingen (KRG). The 2-D airfoil model (LV2F) was coated with a Ruthenium-based paint and tested in a nitrogen atmosphere at temperatures in the range 120 – 283 K. TSP images were acquired with a framing rate up to 50 kHz at different Mach and Reynolds numbers. With the help of the intensity-based TSP method, the transition location on the airfoil model under cryogenic conditions could be measured, and the model-characteristic transitional oscillations of the order of 100 Hz could be detected and resolved. In addition, intermittent turbulent wedges, which are often seen on wind tunnel model surfaces when using thermographic measurements methods, and which occur naturally mainly towards the beginning or end of a KRG wind tunnel run, provided another unique possibility to further analyze the response time of the TSP layer. Since the Ruthenium-based TSP used here was able to capture the footprints of these naturally occurring intermittent turbulent wedges under cryogenic conditions, one can conclude that the TSP coating procedure presented here can be successfully applied to detect unsteady flow phenomena with a time resolution better than 1 ms.
elib-URL des Eintrags: | https://elib.dlr.de/202351/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Zusätzliche Informationen: | eISBN: 978-1-62410-711-5 | ||||||||||||||||||||
Titel: | Determination of the response time of TSP in cryogenic conditions | ||||||||||||||||||||
Autoren: |
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Datum: | Januar 2024 | ||||||||||||||||||||
Erschienen in: | AIAA SciTech 2024 Forum | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
DOI: | 10.2514/6.2024-1093 | ||||||||||||||||||||
Seitenbereich: | Seiten 1-12 | ||||||||||||||||||||
Herausgeber: |
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ISBN: | 978-1-62410-711-5 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | response time, Temperature-Sensitive Paint (TSP), cryogenic conditions | ||||||||||||||||||||
Veranstaltungstitel: | 2024 AIAA SciTech | ||||||||||||||||||||
Veranstaltungsort: | Orlando, Florida, USA | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 8 Januar 2024 | ||||||||||||||||||||
Veranstaltungsende: | 12 Januar 2024 | ||||||||||||||||||||
Veranstalter : | AIAA | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Flugzeug und Validierung | ||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren, GO | ||||||||||||||||||||
Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||
Hinterlegt am: | 06 Feb 2024 16:46 | ||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 21:02 |
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