Transient lift forces of structural sections traversing a sharp-edged gust

Abstract

This paper investigates the transient lift forces induced by traversing a sharp-edged gust for three structural sections: thin airfoil, flat plate and square by dynamic wind tunnel experiment. Wavelet analysis is applied to remove the noise. Transient lifts are characterized by equivalent Küssner functions. They are gained respectively for the thin airfoil and the flat plate. The overshoot of lift is observed for these two structures.