Datapaper - Aerodynamic performance in transonic regime around an A320 airfoil by means of electroactive morphing through vibration and slight deformation of the near-trailing edge region at high Reynolds number

The present article has been elaborated in the context of the Foundation’s STAE (http://www.fondation-stae.net/) -RTRA platform DATANOOS: “From Data to noosphere”, coordinated by IRIT, (Institut de recherché en Informatique de Toulouse, Michelle Sibilla Nathalie Aussenac). In this context, the present Datapaper has been prepared within the Use-Case DATANOOS-UC1, “Modélisation enrichie et intelligente de données Avion” coordinated by Marianna Braza, on the basis of INPT/IMFT’s data generated in the H2020 European research project N° 723402: SMS, “Smart Morphing and Sensing for aeronautical configurations”, www.smartwing.org/SMS/EU in collaboration with the CALMIP, (T. Louge) who launched the CALLISTO Interface for a Semantic Toolbox Online: https://callisto.calmip.univ-toulouse.fr/ This collaborative study offers access, interoperability and reuse of these data in the context of Open / FAIR research data in Horizon 2020. The present article studies through appropriate vibration and deformation of the near trailing edge region of a supercritical A320-type morphing airfoil the physical mechanisms related the aerodynamic performance modification, e.g. the change in the lift and drag coefficients due to modification of the near wake’s turbulence structure and of the shock-boundary layer interaction. The upstream Mach number is 0.78 and the wing is placed at an incidence of 1.8°, both parameters corresponding to nominal cruise operating conditions. The airfoil’s chord measures 15 cm, corresponding to the so-called tRS, “transonic Reduced Scale“ prototype of the H2020 N° 723402 SMS project “Smart Morphing and Sensing for aeronautical configurations”, www.smartwing.org/SMS/EU, coordinated by IMFT/INPT, the experiments of which have accomplished in the transonic wind tunnel of the IMP-PAN Institute at Gdansk, co-partner of the SMS project. The computations have been carried out in the Olympe supercomputer of the CALMIP Centre with the use of the Navier Stokes MultiBlock (NSMB) code of the European Consortium. The near trailing edge region of the airfoil is made to vibrate at different frequencies in the 700 Hz to 780 Hz range. This actuation is performed by the use of Macro Fiber Composite (MFC) type piezoactuators, operating at low deformation amplitudes (in the order of 0.5 mm).