21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-2.10.2

LARGE-EDDY SIMULATION OF A TRAILING VORTEX SYSTEM BEHIND A CIVIL AIRCRAFT MODEL

Da Silva C. B., Sousa J. M. M., Pereira J. C. F.
TU Lisbon, Portugal

Keywords: large-eddy simulation, trailing vortex system, civil aircraft model

In this paper we investigate Flap-Tip vortex pair interaction behind a civil aircraft model. We perform Large-Eddy Simulation of a pair of Burgers vortices, whose parameters were set according to wind tunnel measurements of a Flap-Tip vortex pair issuing from a civil aircraft model. The study of the isolated (Flap) vortex provides us significant insight about its turbulent structure. In the Flap-Tip vortex system we see how the interaction of the vortices modifies their mean and turbulent flow fields. The work. ends with the study of the effect of initial separation distance on the vortex pair development.

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