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Gardner, Anthony D. und Wolf, C. Christian und Heineck, James T. und Barnett, Miles und Raffel, Markus (2019) Helicopter Rotor Boundary Layer Transition Measurement in Forward Flight Using an Infrared Camera. In: Proceedings of the 75th Annual Forum and Technology Display, Seiten 1-13. VFS 75th Annual Forum & Technology Display, 2019-05-13 - 2019-05-16, Philadelphia, PA, USA.
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Kurzfassung
Boundary layer transition measurement was demonstrated using differential infrared thermography on the top side of a helicopter rotor in forward flight. The tests used a FLIR X8500xc SLS long wave infrared camera to observe the DLR EC135 test helicopter rotor. The boundary layer transition was detected for hover out of ground effect (150 ft) and for forward flight at 80 kt (1700 ft). The measured boundary layer transition positions are consistent with previous measurements of the EC135 hovering in ground effect, and with predicted boundary layer transition positions. A method for the analysis of DIT images for a rotor in forward flight is shown, based on computational analysis of a pitching airfoil with varying inflow.
| elib-URL des Eintrags: | https://elib.dlr.de/126826/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
| Titel: | Helicopter Rotor Boundary Layer Transition Measurement in Forward Flight Using an Infrared Camera | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | Mai 2019 | ||||||||||||||||||||||||
| Erschienen in: | Proceedings of the 75th Annual Forum and Technology Display | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 1-13 | ||||||||||||||||||||||||
| Name der Reihe: | Conference Proceedings digital | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | boundary layer transition, helicopter, infrared thermography, DIT, flight test | ||||||||||||||||||||||||
| Veranstaltungstitel: | VFS 75th Annual Forum & Technology Display | ||||||||||||||||||||||||
| Veranstaltungsort: | Philadelphia, PA, USA | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsbeginn: | 13 Mai 2019 | ||||||||||||||||||||||||
| Veranstaltungsende: | 16 Mai 2019 | ||||||||||||||||||||||||
| Veranstalter : | AHS - The Vertical Flight Society | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Hubschrauber | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L RR - Rotorcraft Research | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Der virtuelle Drehflügler (alt) | ||||||||||||||||||||||||
| Standort: | Braunschweig , Göttingen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO Flugexperimente > Braunschweig | ||||||||||||||||||||||||
| Hinterlegt von: | Winkels, Elisabeth | ||||||||||||||||||||||||
| Hinterlegt am: | 12 Jun 2019 10:39 | ||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:30 |
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