G0501-3-4 Effect of wing-tip shape on wing in ground effect

The influence of the wing-tip plate on the wing in ground effect were examined by the wind tunnel experiment. The flow fields were measured by a particle image velocimetry, and the effect of the wing-tip plate on the wing-tip vortex and the aerodynamic characteristic was examined. The following results were given. The aerodynamic characteristic changed by the wing in ground effect was qualitatively same as past study results. Though only one wing-tip vortex exists near the wing-tip without the wing-tip plate, but, the two wing-tip vortices exist with the wing-tip plate. The wing-tip vortex with the wing-tip plate is away from the wing-tip compared with the case without the wing-tip plate.