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Impact of Wind Energy Rotor Wakes on Fixed-Wing Aircraft and Helicopters

van der Wall, Berend G. and Fischenberg, Dietrich and Lehmann, Paul Hermann and van der Wall, Lennert B. (2016) Impact of Wind Energy Rotor Wakes on Fixed-Wing Aircraft and Helicopters. 42nd European Rotorcraft Forum, 05.-08. Sept. 2016, Lille, Frankreich.

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The wake of wind energy rotors is modeled as a tip vortex helix with a vortex strength estimated from its rotor thrust. A fixed-wing sail plane and a helicopter whose rotor is represented as a fixed-wing circular disk (instead of rotating blades) are subjected to the wake. In both cases the roll moment induced by the wake is compared to the maximum roll control moment of the aircraft. For comparison with revolving blades, the blade element momentum theory is applied to the isolated rotor and a simulation of an entire helicopter is used also. It is found that typical on-shore power plants could be a hazard for sailplanes, but not for helicopters. Large off-shore wind energy converters, however, could even be a danger for small helicopters that may be used for maintenance.

Item URL in elib:https://elib.dlr.de/104396/
Document Type:Conference or Workshop Item (Speech)
Title:Impact of Wind Energy Rotor Wakes on Fixed-Wing Aircraft and Helicopters
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
van der Wall, Berend G.Berend.vanderWall (at) dlr.dehttps://orcid.org/0000-0001-6144-0921
Fischenberg, DietrichDietrich.Fischenberg (at) dlr.deUNSPECIFIED
Lehmann, Paul HermannPaul.Lehmann (at) dlr.deUNSPECIFIED
van der Wall, Lennert B.L.Wall (at) tu-braunschweig.deUNSPECIFIED
Date:5 September 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-28
Keywords:Wind energy, rotor wake, wake-aircraft interaction, wake-helicopter interaction, wake hazard
Event Title:42nd European Rotorcraft Forum
Event Location:Lille, Frankreich
Event Type:international Conference
Event Dates:05.-08. Sept. 2016
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), L - Flight Physics (old), E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:20 Sep 2016 11:29
Last Modified:09 Mar 2017 15:58

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