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Investigation of the engine-gear vortex with LIDAR and CFD
Author(s): Anton Stephan; Norman WIldmann; I. N. Smalikho; F. Holzäpfel
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Paper Abstract

The final approach and touchdown of a landing aircraft is studied numerically with a hybrid RANS/LES approach, as well as a pulsed coherent LIDAR system. Particular emphasis is put on the ground effect, the engine-gear vortex and the wake vortex evolution before and after touchdown. We compare CFD results with LIDAR measurement data collected in a recent campaign at Vienna airport. The radial velocity method was applied to retrieve vortex position and circulation. The vortex structures predicted by the simulations are clearly visible in those measurements. Simulated tangential velocity profiles are compared with vortex model profiles. It is observed that the standard vortex model can be improved including mirror vortices.

Paper Details

Date Published: 13 December 2018
PDF: 13 pages
Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108336I (13 December 2018); doi: 10.1117/12.2504790
Show Author Affiliations
Anton Stephan, DLR Institute of Atmospheric Physics (Germany)
Norman WIldmann, DLR Institute of Atmospheric Physics (Germany)
I. N. Smalikho, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
F. Holzäpfel, DLR Institute of Atmospheric Physics (Germany)


Published in SPIE Proceedings Vol. 10833:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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