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Impact of Vortex – Wake Interference on Rotor Trim

van der Wall, Berend G. (2020) Impact of Vortex – Wake Interference on Rotor Trim. VFS Transformative Vertical Flight 2020, 21.-23. Jan. 2020, San Jose, Kalfornien.

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Rotors of vertical take-off and landing vehicles (main rotor, tail rotor, and propeller) are often subjected to in-teraction with vortices from other lifting devices, such as from preceding fixed-wing aircraft, rotorcraft, or wind turbines. Up to now most numerical investigations consider the interaction as independent of each other, i.e. the interacting vortex remains spacefixed without deformation due to the rotor, and the rotor wake remains unaffected by the external vortex. For the aerodynamics on the rotor blades this represents a conservative approach. In this paper the external vortex is considered as deflected by the rotor wake and immersed into its slipstream, which can have significant impact on the interaction aerodynamics and resulting blade motion, depending on the advance ratio. This topic is addressed in this paper.

Item URL in elib:https://elib.dlr.de/128676/
Document Type:Conference or Workshop Item (Speech)
Title:Impact of Vortex – Wake Interference on Rotor Trim
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
van der Wall, Berend G.berend.vanderwall (at) dlr.dehttps://orcid.org/0000-0001-6144-0921
Date:January 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-9
Keywords:Helicopter, helicotper aerodynamics, aerodynamic interaction, vortex-rotor interaction, rotor trim
Event Title:VFS Transformative Vertical Flight 2020
Event Location:San Jose, Kalfornien
Event Type:international Conference
Event Dates:21.-23. Jan. 2020
Organizer:The Vertical Flight Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:29 Sep 2020 12:10
Last Modified:29 Sep 2020 12:10

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