Alessandro Gallo
Characterization of Dielectric Barrier Discharge Plasma Actuators for Drag Reduction.
Rel. Jacopo Serpieri, Edoardo Fracchia. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2025
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Abstract
The environmental impact of the aviation sector has prompted significant research efforts aimed at developing strategies to reduce aircraft aerodynamic drag. In particular, it is estimated that 50% of the overall drag for a medium sized civil aircraft is caused by skin friction drag. In order to reduce it, many active and passive flow control techniques are currently being studied and have been employed in recent years. The primary means to achieve drag reduction is to interact with and disrupt the coherent turbulent structures, thus suppressing the regeneration and self-sustaining mechanisms typical of wall-bounded turbulence. One of these active techniques involves the use of dielectric barrier discharge plasma actuators (DBD-PAs).
These devices ionize and accelerate the fluid that surrounds the exposed electrode, generating a controlled wall jet flow
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