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Barrio, J. Fernández (author), Mertens, C. (author), Ragni, D. (author), Sciacchitano, A. (author), van Oudheusden, B.W. (author)A proportionate controller is investigated experimentally for unsteady load alleviation purposes on a 2D wing model with a trailing-edge flap. The controller acts on the velocity of the flaps, and pressure sensors are used to detect the unsteady loads, which are generated by actuating the wing model in a sinusoidal motion. Two different...journal article 2020
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Ragni, D. (author), Ashok, A. (author), van Oudheusden, B.W. (author), Scarano, F. (author)The present investigation assesses a procedure to extract the aerodynamic loads and pressure distribution on an airfoil in the transonic flow regime from particle image velocimetry (PIV) measurements. The wind tunnel model is a two-dimensional NACA-0012 airfoil, and the PIV velocity data are used to evaluate pressure fields, whereas lift and...journal article 2009