Wolf, Christian und Schanz, Daniel und Schwarz, Clemens und Heintz, Alexander und Bosbach, Johannes und Strübing, Tobias und Schröder, Andreas (2024) Volumetric Wake Investigation of a Free-Flying Quadcopter using Shake-The-Box Lagrangian Particle Tracking. 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-0080-2024-1161. ISBN 978-171389794-1.
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Offizielle URL: https://vtol.org/forum
Kurzfassung
The Shake-The-Box technique was applied to experimentally quantify the time-resolved volumetric flow field around a free-flying quadcopter UAV with an overall span of about 0.5 m. State-of-the-art LED illumination and high-speed camera equipment was combined with modern Lagrangian tracer particle tracking and data assimilation techniques, facilitating a measurement volume larger than 1.5 m3. The setup allowed for both hover and limited maneuvering of the quadcopter, while resolving even small details of the complex interactional aerodynamics. In hover out of ground effect, the four individual rotor wakes merged into a single jet within a few rotor radii below the rotor planes. Evaluating the mass and momentum fluxes over suitable control volumes yields accurate estimates for the quadcopter’s total thrust, the asymmetric thrust distribution between front and back rotors, and the entrainment of external flow through turbulent mixing. Hover in ground effect decreases the power requirement and induces recirculating flow in the center of the four rotors. The outwash pattern is non-uniform with jets developing between the rotors and pointing in radially outward directions. Forward flight cases result in a skewed, rapidly merging wake flanked by the roll-up of two “super-vortices” similar to the wingtip vortices of fixed-wing vehicles.
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||
Titel: | Volumetric Wake Investigation of a Free-Flying Quadcopter using Shake-The-Box Lagrangian Particle Tracking | ||||||||||||||||||||||||||||||||
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-0080-2024-1161 | ||||||||||||||||||||||||||||||||
Verlag: | Vertical Flight Society 80th Annual Forum & Technology Display | ||||||||||||||||||||||||||||||||
Name der Reihe: | Aerodynamics Technical Session | ||||||||||||||||||||||||||||||||
ISBN: | 978-171389794-1 | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | shake-the-box, multicopter, wake, quadcopter | ||||||||||||||||||||||||||||||||
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 Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren, GO | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Koch, Bianca | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 03 Jul 2024 14:55 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 03 Jul 2024 14:55 |
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