Fluid-Structure Interaction and Control around Vibrating and Morphing Configurations at High Reynolds Number
Résumé
This study analyses the fluid-elastic instability occurring in turbulent wakes around tandem cylinders as well as the morphing effect in order to control the instability amplification and to improve the aerodynamic performances particularly concerning the Airbus-A320 wing-flap configuration. These studies have been carried out by means of High-Fidelity numerical simulations by using the NSMB—Navier Stokes MultiBlock code (Grossi et al. AIAA J 52(10):2300–2312, 2006), as well as by refined physical experiments, after having built advanced morphing wing prototypes and tested in wind tunnel by using Time-Resolved PIV (TRPIV) and aerodynamic balance measurements. It has been shown that the electroactive morphing concepts are able to provide significant improvements of the aerodynamic performances and to decrease the rms of the displacement and of the forces in the case of the tandem cylinders configuration undergoing Flow Induced Vibration.