The aim of this study is to describe wake vortices near the ground, including rebound. A calculation code solving the incompressible Navier-Stokes equations has been developed; it allows us to compute unsteady two-dimensional flows and steady three-dimensional flows having a preferential direction. The two- dimensional version of the code allows the capture of the rebound of the vortices near the wall as well as the creation of secondary vortices. In the three-dimensional case, the results are compared with experiments. The importance of the axial velocity is also analyzed.
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