Author(s)

Roberto Paoli^1,2*, Henri Moet³

¹Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL, USA.
²Argonne National Laboratory, Computational Science Division, Argonne, IL, USA.
³European Center for Research and Advanced Training in Scientific Computation, Toulouse, France.

The near-field dynamics of an aircraft wake is studied by means of temporal large-eddy simulations, with and without considering the effect of engine jets. In the absence of jets, the simulations showed the roll-up of the initial vorticity sheet shed by the wing and the occurrence of short-wavelength instability in a pair of primary co-rotating vortices. The main consequence of the instability is the modification of the internal structure of the vortex, compared to the two-dimensional stable behavior. The presence of engine jets affects the roll-up of the vorticity sheet and causes an enlargement of the final merged vortex core compared to the case without jets.

Aircraft Wake Vortices, Large-Eddy Simulation, Wake Turbulence

Paoli, R. and Moet, H. (2018) Temporal Large-Eddy Simulations of the Near-Field of an Aircraft Wake. Open Journal of Fluid Dynamics, 8, 161-180. doi: 10.4236/ojfd.2018.82012.