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Advanced Design Approach for a High-lift Wind Tunnel Model Based on Flight Test Data

Bier, Niko and Keye, Stefan and Rohlmann, David (2015) Advanced Design Approach for a High-lift Wind Tunnel Model Based on Flight Test Data. In: Advances in Simulation of Wing and Nacelle Stall Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), 131. Springer. pp. 337-350. doi: 10.1007/978-3-319-21127-5_20. ISBN 978-3-319-21126-8. ISSN 1612-2909.

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The objective of the joint research project HINVA (High-Lift In-Flight Validation) funded by the German Federal Ministry of Economics and Technology within the fourth Aeronautical Research Program LuFo IV is to significantly enhance the accuracy and reliability of both numerical and experimental simulation methods with respect to the aerodynamic performance prediction of civil transport aircraft with deployed high-lift devices. To achieve this goal, the most advanced computational fluid dynamics (CFD) and wind tunnel simulation methods currently in industrial use are to be validated against flight test data. DLR’s Airbus A320-200 Advanced Technology Research Aircraft (ATRA) serves as a common configurative basis for the three fields of methodology 1) flight test, 2) high Reynolds-number testing in the European Transonic Wind Tunnel (ETW), and 3) numerical simulation using DLR’s TAU code. To meet the demanding accuracy specified in HINVA, the wind tunnel model wing must be geometrically similar to the ATRA wing in flight, i.e. have the same spanwise twist distribution, when subjected to the aerodynamic loads existing at maximum lift flow conditions in ETW. The inverse design approach of defining the corresponding model jig shape is based on a combined use of measured flow conditions and wing deformations from a selected reference test flight and fluid-structure coupled simulations using a model scale CFD grid, wind tunnel flow conditions equivalent to the reference flight state, and a wind tunnel structural model. When exposed to the aerodynamic loads under ETW flow conditions, the designed model jig shape leads to a final wing shape which closely resembles ATRA’s actual wing shape at maximum lift.

Item URL in elib:https://elib.dlr.de/96517/
Document Type:Contribution to a Collection
Title:Advanced Design Approach for a High-lift Wind Tunnel Model Based on Flight Test Data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Journal or Publication Title:Advances in Simulation of Wing and Nacelle Stall
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 337-350
EditorsEmailEditor's ORCID iD
Radespiel, RolfTU Braunschweig, GermanyUNSPECIFIED
Niehuis, ReinhardUniversität der Bundeswehr, München, GermanyUNSPECIFIED
Kroll, NorbertDLR, Braunschweig, GermanyUNSPECIFIED
Behrends, KathrinTU Braunschweig, GermanyUNSPECIFIED
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM)
Keywords:Wind Tunnel, Model Design, Flight Test, CFD
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), L - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Bier, Niko
Deposited On:09 Sep 2015 13:32
Last Modified:09 Sep 2015 13:32

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