Summary
This paper presents the results of an experimental investigation of the wake vortex structure behind different wings with and without flaps. The wind-tunnel test is part of a project funded to investigate the flow structure in the wake of different wings. The purpose of this investigation is to study the main features of lift generated vortices in order to find ways to alleviate hazardous wake vortex encounters for following airplanes during take-off and approach such that an increase in airport capacity can be achieved. Therefore, the wakes of different wings without flaps are investigated to examine the influence of different wing planforms on the structure of the wing tip vortex and the induced rolling moment. Then, the wake of a swept and tapered wing is investigated for different flap settings. Finally, a wing fin is mounted on the wings with and without flaps to examine its alleviating influence on the wake structure. The results show that the wing planform and the flap deflection have a considerable influence on the wake structure and the induced rolling moment on a following aircraft and that a wing fin can lead to an alleviation of the wake.
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Özger, E., Schell, I., Jacob, D. (2003). Experimental Analysis and Modulation of Vortices. In: Ballmann, J. (eds) Flow Modulation and Fluid—Structure Interaction at Airplane Wings. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 84. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-44866-2_2
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DOI: https://doi.org/10.1007/978-3-540-44866-2_2
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