Abstract
The understanding and prediction of high-lift aerodynamics of a civil aircraft in landing configuration still lacks validated and comprehensively assessed databases involving numerical simulations, wind tunnel tests as well as flight tests. The joint research project HINVA (High lift INflight VAlidation) aims on closing this gap for a short to medium range transport aircraft together with its specific high-lift devices. The research aircraft, used to apply all three methodologies, is the Airbus A320 ATRA (Advanced Technology Research Aircraft). The present work comprised an airborne particle image velocimetry (PIV) measurement conducted as part of the second flight test campaign of the project HINVA. The specific task of the PIV system was the quantification of the outer strake vortex which was initiated by the outer vortex generator of the nacelle in the high-lift regime. PIV data at different Reynolds numbers and angles of attack was acquired and evaluated. This contribution summarizes the PIV flight test study by presenting its setup, realization and results.
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Acknowledgements
The authors of the present work are grateful for the funding provided by the German Aeronautical research Program LuFo IV. A special thanks is dedicated to the FTI teams of DLR and Airbus whose technical support helped realizing the PIV flight tests. The authors would also like to acknowledge the patient assistance of Tobias Kleindienst, Carsten Fuchs and Florian Philipp during this campaign.
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Dunker, C., Geisler, R. (2018). Full-Scale In-Flight Flow Investigation of a High-Lift Vortex System by Means of Particle Image Velocimetry. In: Dillmann, A., et al. New Results in Numerical and Experimental Fluid Mechanics XI. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 136. Springer, Cham. https://doi.org/10.1007/978-3-319-64519-3_47
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DOI: https://doi.org/10.1007/978-3-319-64519-3_47
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