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About this paper
Leonard Bauersfeld, Koen Muller, Dominic Ziegler, Filippo Coletti, Davide Scaramuzza
The authors develop a model to estimate time-averaged downwash below hovering drones using closed-form turbulent-jet relationships. Measurements from six drones support a shared far-field flow pattern after about 2.5 motor spacings below the rotor plane, where propeller wakes merge. In a flight test 1 m below a hovering drone, correction reduced altitude-tracking RMSE from 69.1 mm to 24.8 mm; the model is limited to tested hover conditions and the far field.
Summary by alphaXiv.
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