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Numerical lnvestigations of Blade Tip Vortex Dynamics

Kaufmann, Kurt and Wolf, Christian and Merz, Christoph B. and Gardner, Anthony (2017) Numerical lnvestigations of Blade Tip Vortex Dynamics. In: 17th Onera-DLR Aerospace Symposium. 17th Onera-DLR Aerospace Symposium, ODAS 2017, 07.-09. Juni 2017, Aussois, Frankreich.

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Official URL: http://w3.onera.fr/odas2017/


Numerical computations on a finite wing are ca rried out using DLR's fin ite-volume solver TAU. The tip-vortex characteristics during static stall and deep dynamic stall are analyzed and compared to particle image velocimetry (PIV) measurements carried out in the side wind facility Göttingen. Computational flu id dynamics (CFD) and experiment are in good agreement, especially for sections close to the blade tip. Too large dissipation within the numerical computations leads to larger vortex size than in the experiment. The dissipation effect increases with larger distances from the wing. The analysis shows that the numerical method is able to capture the complex vortex structures shed from the wing and helps understanding the source of these structures.

Item URL in elib:https://elib.dlr.de/112152/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical lnvestigations of Blade Tip Vortex Dynamics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kaufmann, KurtUNSPECIFIEDhttps://orcid.org/0000-0003-2276-3386
Wolf, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-9052-7548
Gardner, AnthonyUNSPECIFIEDhttps://orcid.org/0000-0002-1176-3447
Journal or Publication Title:17th Onera-DLR Aerospace Symposium
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Blade Tip Vortex, DLR-TAU, PIV, Dynamic Stall
Event Title:17th Onera-DLR Aerospace Symposium, ODAS 2017
Event Location:Aussois, Frankreich
Event Type:international Conference
Event Dates:07.-09. Juni 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Bachmann, Barbara
Deposited On:27 Nov 2017 15:42
Last Modified:01 Dec 2018 19:52

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