Gardner, Anthony und Kostek, Anna und Lößle, Felix und Braukmann, Johannes N. (2024) Experiments and modelling of multicopter rotor response to sinusoidal vertical gusts. In: 80th Annual Vertical Flight Society Forum and Technology Display, FORUM 2024. Vertical Flight Society 80th Annual Forum & Technology Display. Vertical Flight Society’s 80th Annual Forum & Technology Display, 2024-05-07 - 2024-05-09, Montréal, Québec, Canada. doi: 10.4050/F-0080-2024-1148. ISBN 978-171389794-1.
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Kurzfassung
Multicopters operate in environments subject to strongly gusting winds, and need good aeromechanical models to improve the aircraft. A common, convenient, assumption is that the gusting inflow is quasi-static at each instant, but this assumption has never been tested. This paper shows that there is a solid physical basis for the simplified aerodynamic models of multicopter response to gusts. Experiments and computations show that using the static relationship between thrust or power and aerodynamic angle of attack for a multicopter rotor (the quasi-static assumption) in sinusoidally pitching sideflow can be used to predict the thrust or power for unsteady variation of angle of attack if the instantaneous flow angle of the freestream is known. Vertical (angle) gusts up to 1885°/s (k=2.2 based on diameter) and with a wavelength longer than the rotor diameter were shown to be covered by this assumption.
elib-URL des Eintrags: | https://elib.dlr.de/204184/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Titel: | Experiments and modelling of multicopter rotor response to sinusoidal vertical gusts | ||||||||||||||||||||
Autoren: |
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Datum: | 9 Mai 2024 | ||||||||||||||||||||
Erschienen in: | 80th Annual Vertical Flight Society Forum and Technology Display, FORUM 2024 | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
DOI: | 10.4050/F-0080-2024-1148 | ||||||||||||||||||||
Verlag: | Vertical Flight Society 80th Annual Forum & Technology Display | ||||||||||||||||||||
Name der Reihe: | Aerodynamics Technical Session | ||||||||||||||||||||
ISBN: | 978-171389794-1 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | multicopter, gusts, unsteady aerodynamics, rotor | ||||||||||||||||||||
Veranstaltungstitel: | Vertical Flight Society’s 80th Annual Forum & Technology Display | ||||||||||||||||||||
Veranstaltungsort: | Montréal, Québec, Canada | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 7 Mai 2024 | ||||||||||||||||||||
Veranstaltungsende: | 9 Mai 2024 | ||||||||||||||||||||
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 Aerodynamik und Strömungstechnik > Hubschrauber, GO | ||||||||||||||||||||
Hinterlegt von: | Koch, Bianca | ||||||||||||||||||||
Hinterlegt am: | 03 Jul 2024 14:51 | ||||||||||||||||||||
Letzte Änderung: | 03 Jul 2024 14:51 |
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