28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-4.10.3

PROPELLER INDUCED GROUND VORTEX

Y. Yang, D. Ragni, L. Veldhuis, G. Eitelberg
TU Delft, Netherlands

Keywords: ground-vortex, propeller propulsion, vorticity, actuator disk, piv

The propeller induced ground vortex is studied by means of Particle Image Velocimetry (PIV). A simple analytical model, based on the actuator disk approximation, is proposed for predicting the ground vortex occurrence and verified with the help of an isolated propeller test in a wind tunnel.

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