Investigation of the engine-gear vortex with LIDAR and CFD

Anton Stephan; Norman WIldmann; I. N. Smalikho; F. Holzäpfel

doi:10.1117/12.2504790

13 December 2018 Investigation of the engine-gear vortex with LIDAR and CFD

Anton Stephan, Norman WIldmann, I. N. Smalikho, F. Holzäpfel

Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108336I (2018) https://doi.org/10.1117/12.2504790
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

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.

Citation Download Citation

Anton Stephan, Norman WIldmann, I. N. Smalikho, and F. Holzäpfel "Investigation of the engine-gear vortex with LIDAR and CFD", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108336I (13 December 2018); https://doi.org/10.1117/12.2504790

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