Geodesic
Wake vortices behavior near the ground
Alexandre Corjon1 ; Thierry Poinsot1
1 Department of Fluid Mechanics CERFACS, 42 G. Coriolis Ave, F-31057 Toulouse Cedex, France
ESAIM. Proceedings, Tome 1 (1996), pp. 279-294.

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Direct numerical simulations of a vortex pair embedded in a stable atmospheric boundary layer are presented. The effects of various crosswind conditions are studied. These computations demonstrate the creation of secondary vortices for the range of Reynolds numbers (3770≤Rer≤). The physics of wake vortex interactions with the ground for different values of crosswind are discussed. The redistribution of vorticity between the atmospheric boundary layer and the vorticity induced by the primary vortices may explain the vortex tilting phenomenon. A parametrization of the effect of crosswind on the minimum altitude reached by the two vortices is given.
DOI : 10.1051/proc:1996006

Alexandre Corjon 1 ; Thierry Poinsot 1

1 Department of Fluid Mechanics CERFACS, 42 G. Coriolis Ave, F-31057 Toulouse Cedex, France 
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Alexandre Corjon; Thierry Poinsot. Wake vortices behavior near the ground. ESAIM. Proceedings, Tome 1 (1996), pp. 279-294. doi : 10.1051/proc:1996006. http://geodesic.mathdoc.fr/articles/10.1051/proc:1996006/

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