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Morphing Study by Integrated Electroactive Actuator-sensors for the Optimization of Aerodynamic Performance

par Laurence Laffont - publié le , mis à jour le

Mateus CARVALHO’s thesis defense, intitled "Morphing Study by Integrated Electroactive Actuator-sensors for the Optimization of Aerodynamic Performance" will be taking place on Thursday, July 1st 2021 at 2.00 pm in the Salle des thèses C002 at the ENSEEITH.

Due to anti-Covid sanitary measures, availability of seats will be limited, but one may attend via Zoom :

Jury :
Jean-François ROUCHON - Professor, LAPLACE
Marianna BRAZA - Head of Research CNRS, IMFT
Henda DJERIDI - Professor, LEGI Grenoble
Denis DARRACQ - Head of Flight Physics Research & Technology, Airbus Toulouse
Frank THIELE - Professor, Technical University of Berlin
Lionel PETIT - Professor, INSA-Lyon
Yannick HOARAU - Professor, ICube Unistra

Abstract :

For the next 20 years, the quantity of air travelers in the world is expected to rise to almost the double of the current number. This growth is followed by the eminent increase of greenhouse gas emissions linked to climate change. Another obvious consequence is the higher operation cost for airline companies. These factors explain the need for better efficiency for modern aircrafts. Among these studies there is the Smart Morphing and Sensing European Project. The goal of the project is to design a system of electroactive actuators for two different time scales. Shape Memory Alloys (SMA) are used for low-frequency camber control of an A320 wing prototype at reduced scale, developed by LAPLACE, while piezoelectric based actuators are responsible for high frequency vibration of its trailing-edge. The experiments have been carried out in the S4 subsonic wind-tunnel at the IMFT facilities in Toulouse to analyze shear-layer dynamics. TR-PIV results were acquired at Reynolds Number of 700k and 1 million. In addition, lift and unsteady pressure measurements were obtained at different upstream velocities. Spectral analysis were computed to investigate the effects of morphing on vortices manipulation and turbulence reduction.