Müller, Martin Michael und Weiss, Armin und Braukmann, Johannes N. (2022) Dynamic Stall Investigation on a Rotating semi-elastic Double-swept Rotor Blade at the Rotor Test Facility Gottingen. In: 78th Annual Vertical Flight Society Forum and Technology Display, FORUM 2022. Vertical Flight Society. Vertical Flight Society 78th Forum, 2022-05-10 - 2022-05-12, Fort Worth, USA. doi: 10.4050/F-0078-2022-17634. ISBN 978-171385426-5.
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Offizielle URL: https://vtol.org/annual-forum/forum-78-proceedings
Kurzfassung
Experimental investigations of three-dimensional dynamic stall on a four-bladed Mach-scaled semi-elastic rotor with an innovative double-swept rotor blade planform are presented. The study focuses on the coupling between the aeroelastic behavior of the blade and the underlying aerodynamics. Blade bending moment and flap displacement measurements were conducted using strain gauges and optical tracking of blade tip markers. The aerodynamic behavior was characterized by means of unsteady surface pressure measurements using unsteady pressure-sensitive paint (iPSP) across the outer 65 % of the blade span and fast response pressure transducers at discrete locations. Different cyclicpitch settings were investigated at a rotation frequency of frotor = 23.6 Hz, that corresponds to blade tip Mach and Reynolds numbers of Mtip = 0.282 - 0.285 and Retip = 5.84 - 5.95 x 105. The findings reveal a detailed insight into the non-linear behavior in the flap movement during downstroke. iPSP and pressure transducer data indicates that this non-linear flap behavior is caused by a radially phase-shifted dynamic stall process at the forward and backward swept part of the blade.
elib-URL des Eintrags: | https://elib.dlr.de/187668/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Dynamic Stall Investigation on a Rotating semi-elastic Double-swept Rotor Blade at the Rotor Test Facility Gottingen | ||||||||||||||||
Autoren: |
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Datum: | 13 Mai 2022 | ||||||||||||||||
Erschienen in: | 78th Annual Vertical Flight Society Forum and Technology Display, FORUM 2022 | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
DOI: | 10.4050/F-0078-2022-17634 | ||||||||||||||||
Verlag: | Vertical Flight Society | ||||||||||||||||
ISBN: | 978-171385426-5 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Aeromechanic, Double-Swept, Rotor, iPSP | ||||||||||||||||
Veranstaltungstitel: | Vertical Flight Society 78th Forum | ||||||||||||||||
Veranstaltungsort: | Fort Worth, USA | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 10 Mai 2022 | ||||||||||||||||
Veranstaltungsende: | 12 Mai 2022 | ||||||||||||||||
Veranstalter : | Vertical Flight Society | ||||||||||||||||
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 - Virtueller Hubschrauber und Validierung | ||||||||||||||||
Standort: | Göttingen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Experimente Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO | ||||||||||||||||
Hinterlegt von: | Müller, Martin Michael | ||||||||||||||||
Hinterlegt am: | 22 Aug 2022 14:23 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:49 |
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