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A 2D Validation Experiment for Dynamic High-Lift System Aerodynamics

Wild, Jochen and Schmidt, Moritz and Vervliet, Antoon and Tanguy, Geoffrey (2022) A 2D Validation Experiment for Dynamic High-Lift System Aerodynamics. In: Advances in Computational Methods and Technologies in Aeronautics and Industry Computational Methods in Applied Sciences, 57. Springer, Cham. pp. 37-47. doi: 10.1007/978-3-031-12019-0_3. ISBN 978-3-031-12019-0.

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Official URL: https://link.springer.com/chapter/10.1007/978-3-031-12019-0_3


The feasibility of laminar flow control technology for future wing is bound to the development of a leading edge high-lift system that complies with the requirements on smooth surfaces to enable maintaining the laminar boundary layer flow, such as a Krueger flap. Although in principle the aerodynamic performance of a Krueger flap is known, the unsteady behaviour of the flow during deployment and retraction is completely unknown. This is as even more important as during deployment the Krueger flap is exposed to highly unfavourable positions perpendicular to the flow. To mitigate the risk of unfavourable aircraft behaviour, it is therefore expected that a Krueger flap has to be deflected significantly fast and may trigger unsteady aerodynamic effects. Within the European H2020 project UHURA, currently a wind tunnel test is conducted incorporating the vented foldable bull nose Krueger. A wind tunnel model based on the DLR-F15 airfoil has been designed and manufactured that features a part span and a full span Krueger device, which can be actuated at high deflection rates up to 180°/s. First wind tunnel tests will be conducted at the ONERA L1 wind tunnel in Lille in May 2020. The tests include the measurements of internal forces, steady and unsteady pressures, as well as phase locked PIV to achieve high quality validation data for comparison with numerical methods.

Item URL in elib:https://elib.dlr.de/192689/
Document Type:Contribution to a Collection
Title:A 2D Validation Experiment for Dynamic High-Lift System Aerodynamics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wild, JochenUNSPECIFIEDhttps://orcid.org/0000-0002-2303-3214UNSPECIFIED
Date:December 2022
Journal or Publication Title:Advances in Computational Methods and Technologies in Aeronautics and Industry
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 37-47
EditorsEmailEditor's ORCID iDORCID Put Code
Knörzer, DietrichDK Aeronautics Consultant, Brussels, BelgiumUNSPECIFIEDUNSPECIFIED
Periaux, JacquesCIMNE, International Centre for Numerical Methods in Engineering, Barcelona, SpainUNSPECIFIEDUNSPECIFIED
Tuovinen, TeroSchool of Technology, Jamk University of Applied Sciences, Jyväskylä, FinlandUNSPECIFIEDUNSPECIFIED
Publisher:Springer, Cham
Series Name:Computational Methods in Applied Sciences
Keywords:High-Lift System, Krueger Flap, Wind Tunnel Test, Unsteady Aerodynamics
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 - Flight Physics (old)
Location: Braunschweig , Köln-Porz , Oberpfaffenhofen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Technical Infrastructure > Systemhaus Technik
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:20 Dec 2022 10:21
Last Modified:20 Dec 2022 10:21

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