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Experimental Investigation of Quadrotor Aerodynamics with Computational Cross-Validation

Kostek, Anna and Braukmann, Johannes N. and Lößle, Felix and Miesner, Sebastian and Visingardi, Antonio and Boisard, Ronan and Riziotis, Vasilis and Keßler, Manuel and Gardner, Anthony (2023) Experimental Investigation of Quadrotor Aerodynamics with Computational Cross-Validation. In: 79th Vertical Flight Society Annual Forum and Technology Display, FORUM 2023, pp. 1-16. Vertical Flight Society. VFS International 79th Annual Forum & Technology Display, 2023-05-16 - 2023-05-18, West Palm Beach, FL, USA. doi: 10.4050/F-0079-2023-17991. ISBN 978-171387479-9.

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The influence of interactional effects on quadrotor performance in forward flight was evaluated taking into account square and diamond configurations, forward and backward tilt angles and a range of hub spacings including over lapping blades. The analysis was based on the wind-tunnel measurements and simulations from five computational methods with different fidelity levels. The outcome indicates that the efficiency of a diamond configuration improves in comparison with isolated rotors for non-overlapping rotor spacings, while the interactions in square alignments are detrimental for all analysed test cases. The computational results showed good agreement with the measurement data for the forward rotor plane tilt, however for the increased rotor-wake interactions at a backward tilt angle the spread between the calculated values, especially for torque, could be observed with the general trends maintained. The study proves the diamond configuration with 1.2 D rotor spacing and tip-to-tip rotor phasing to be most favourable in analysed conditions in terms of both aerodynamic performance and acoustic signature.

Item URL in elib:https://elib.dlr.de/197079/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental Investigation of Quadrotor Aerodynamics with Computational Cross-Validation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kostek, AnnaUNSPECIFIEDhttps://orcid.org/0009-0005-8582-6278147336451
Braukmann, Johannes N.UNSPECIFIEDhttps://orcid.org/0000-0001-8046-9623UNSPECIFIED
Miesner, SebastianUniversität Stuttgart, IAGUNSPECIFIEDUNSPECIFIED
Visingardi, AntonioItalien Aerospace Research CenterUNSPECIFIEDUNSPECIFIED
Boisard, RonanONERA, The French Aerospace LabUNSPECIFIEDUNSPECIFIED
Riziotis, VasilisNational Technical University of Athens (NTUA), GreeceUNSPECIFIEDUNSPECIFIED
Keßler, ManuelUniversität Stuttgart, IAGUNSPECIFIEDUNSPECIFIED
Gardner, AnthonyUNSPECIFIEDhttps://orcid.org/0000-0002-1176-3447147336453
Date:18 May 2023
Journal or Publication Title:79th Vertical Flight Society Annual Forum and Technology Display, FORUM 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-16
Publisher:Vertical Flight Society
Keywords:Quadrotor aerodynamics, interactions, square configuration, diamond configuration, bearhug, breaststroke
Event Title:VFS International 79th Annual Forum & Technology Display
Event Location:West Palm Beach, FL, USA
Event Type:international Conference
Event Start Date:16 May 2023
Event End Date:18 May 2023
Organizer:Vertical Flight Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Virtual Rotorcraft and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Koch, Bianca
Deposited On:24 Nov 2023 11:07
Last Modified:24 Apr 2024 20:57

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