DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

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

Wild, Jochen and Schmidt, Moritz and Vervliet, Antoon and Tanguy, Geoffrey (2021) A 2D Validation Experiment for Dynamic High-Lift System Aerodynamics. In: ECCOMAS 2020. 8th European Congress on Computational Methods in Applied Science and Engineering, 11.-15.Jan, VIRTUAL EVENT.

[img] PDF

Official URL: https://www.wccm-eccomas2020.org/


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/140192/
Document Type:Conference or Workshop Item (Speech)
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:January 2021
Journal or Publication Title:ECCOMAS 2020
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:High-Lift System, Krueger Flap, Wind Tunnel Test, Unsteady Aerodynamics
Event Title:8th European Congress on Computational Methods in Applied Science and Engineering
Event Location:VIRTUAL EVENT
Event Type:international Conference
Event Dates:11.-15.Jan
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:11 Jan 2021 07:31
Last Modified:20 Jun 2021 15:54

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.