Gardner, Anthony Donald und Richter, Kai und Mai, Holger und Altmikus, A.R.M. und Klein, A und Rohart, Claas-Hinrik (2013) Experimental investigation of dynamic stall performance for the EDI-M109 and EDI-M112 airfoils. Journal of the American Helicopter Society, Vol. 58 (1), Seiten 1-13. American Helicopter Society. doi: 10.4050/JAHS.58.012005.
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Offizielle URL: http://dx.doi.org/10.4050/JAHS.58.012005
Kurzfassung
An experimental investigation of the dynamic performance of two new rotor blade airfoils was undertaken in a transonic wind tunnel. The EDI-M109 and EDI-M112 airfoils were tested at 0.3<M<0.5 for pitching motions with amplitude 0.5° to 8° and frequencies 3.3Hz<f<45Hz. The results show that both new airfoils have acceptable dynamic stall performance, and the effect of frequency, amplitude, and higher order pitching motion on these results is described. The pitching moment peak size was found to have an approximately linear correlation to the normalised mean angular velocity, and thus test cases with the same maximum angle of attack and oscillation frequency had similar dynamic stall qualities. The correlation between low aerodynamic damping for high frequency, low amplitude pitching motion and poor dynamic stall performance is shown to be low. The dynamic stall response of the EDI-M112 airfoil is shown to be better for M=0.3 and M=0.4, and the response of the EDI-M109 airfoil is better at M=0.5. The dynamic performance of the airfoils is compared to the OA209.
elib-URL des Eintrags: | https://elib.dlr.de/80893/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Experimental investigation of dynamic stall performance for the EDI-M109 and EDI-M112 airfoils | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | Januar 2013 | ||||||||||||||||||||||||||||
Erschienen in: | Journal of the American Helicopter Society | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | Vol. 58 | ||||||||||||||||||||||||||||
DOI: | 10.4050/JAHS.58.012005 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1-13 | ||||||||||||||||||||||||||||
Verlag: | American Helicopter Society | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | dynamic stall, helicopter, experiment, DNW-TWG, EDI-M109, EDI-M112, airfoil | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Drehflügler (alt) | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | L RR - Drehflüglerforschung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Der virtuelle Drehflügler (alt) | ||||||||||||||||||||||||||||
Standort: | Braunschweig , Göttingen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge Institut für Aerodynamik und Strömungstechnik > Hubschrauber Institut für Aeroelastik > Aeroelastische Experimente | ||||||||||||||||||||||||||||
Hinterlegt von: | Gardner, Dr.habil. Anthony | ||||||||||||||||||||||||||||
Hinterlegt am: | 30 Jan 2013 16:24 | ||||||||||||||||||||||||||||
Letzte Änderung: | 07 Nov 2023 08:13 |
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