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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: 45th European Rotorcraft Forum ERF 2019. 45th European Rotorcraft Forum ERF 2019, 2019-09-17 - 2019-09-20, Warsaw, Poland.
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Offizielle URL: http://erf2019.pw.edu.pl/
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/128846/ | ||||||||||||||||||||||||
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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: | September 2019 | ||||||||||||||||||||||||
| Erschienen in: | 45th European Rotorcraft Forum ERF 2019 | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | boundary layer transition, helicopter, infrared thermography, DIT, flight test | ||||||||||||||||||||||||
| Veranstaltungstitel: | 45th European Rotorcraft Forum ERF 2019 | ||||||||||||||||||||||||
| Veranstaltungsort: | Warsaw, Poland | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsbeginn: | 17 September 2019 | ||||||||||||||||||||||||
| Veranstaltungsende: | 20 September 2019 | ||||||||||||||||||||||||
| Veranstalter : | Politechnika Warszawska, ITLiMS | ||||||||||||||||||||||||
| 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: | 26 Sep 2019 11:06 | ||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:32 |
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