Numerical Study of Four-Vortex Aircraft Wakes and Layout of Corresponding High-Lift Configurations

A numerical strategy for the ecient determination of 4-vortex wakes, consisting of two counter-rotating vortex pairs, with low induced rolling moments after the unstable merging of inner and outer vortices is proposed. After a systematic investigation of generic 4-vortex systems in a second step an airliner geometry in high-lift conguration is modied such that it