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Vortex-Induced Stall on an Actively Twisted Highly Loaded Model Rotor Blade

Wilke, Gunther Andreas and van der Wall, Berend G. and Tanabe, Yasutada and Sugawara, Hideaki and Kim, Do-Hyung and Kang, Hee J. and Jung, Sung N. and Bailly, Joëlle and Barakos, George and Steininger, Rinaldo and Lim, Joon W. (2022) Vortex-Induced Stall on an Actively Twisted Highly Loaded Model Rotor Blade. STAB-Symposium 2022, 09-10 Nov 2022, Berlin, Germany.

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As preparation for a future wind tunnel test of a rotor with twist actuation blades (STAR II ), a prediction effort by the contributing partners has been executed. In this paper, the results of the planned vortex-induced stall operating condition are presented. The current conclusion is that a noticeable spread of the results is given when searching the maximum attainable thrust, depending on the onset of stall once perceived by the individual simulation methodology. Some general trends for the best suited actuation settings reduce vibrations and required power could still be identified. Generally, most CFD-based results allowed to capture this physical phenomenon, but carefully tuned low-fidelity aerodynamics also managed to capture the same trends at a fraction of the computational cost.

Item URL in elib:https://elib.dlr.de/190245/
Document Type:Conference or Workshop Item (Lecture)
Title:Vortex-Induced Stall on an Actively Twisted Highly Loaded Model Rotor Blade
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wilke, Gunther AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-1915-5307148468463
van der Wall, Berend G.UNSPECIFIEDhttps://orcid.org/0000-0001-6144-0921148468464
Tanabe, YasutadaUNSPECIFIEDhttps://orcid.org/0000-0002-3840-9026UNSPECIFIED
Sugawara, HideakiUNSPECIFIEDhttps://orcid.org/0000-0002-7905-2481UNSPECIFIED
Kim, Do-HyungUNSPECIFIEDhttps://orcid.org/0000-0003-2536-0101UNSPECIFIED
Kang, Hee J.UNSPECIFIEDhttps://orcid.org/0000-0001-5685-2112UNSPECIFIED
Jung, Sung N.UNSPECIFIEDhttps://orcid.org/0000-0002-9007-6644UNSPECIFIED
Bailly, JoëlleUNSPECIFIEDhttps://orcid.org/0000-0002-6389-6276UNSPECIFIED
Barakos, GeorgeUNSPECIFIEDhttps://orcid.org/0000-0002-5029-8453UNSPECIFIED
Steininger, RinaldoUNSPECIFIEDhttps://orcid.org/0000-0002-6764-0438UNSPECIFIED
Date:November 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-10
Keywords:helicopter rotor, STAR II, active twist, dynamic stall, vortex-induced stall, blade vortex interaction, rotor vibration
Event Title:STAB-Symposium 2022
Event Location:Berlin, Germany
Event Type:national Conference
Event Dates:09-10 Nov 2022
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: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, BS
Institute of Flight Systems > Rotorcraft
Deposited By: Wilke, Gunther Andreas
Deposited On:01 Dec 2022 11:04
Last Modified:11 Dec 2023 10:25

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