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Accueil > Actualités > Séminaires > Séminaires 2023

Mardi 16 Mai 11h00 - LEGI Salle K118

Romain Monchaux, ENSTA

Dynamical stall and stall dynamics

We present experimental results on the flow around wing profiles around the stall angles. On a curved airfoil in an anechoic wind tunnel, we study the noise generated by the flow for different angles of attack. Using a Spectral Proper orthogonal Decomposition analysis correlated to velocity measurements by time-resolved particle image velocimetry, we identify the aerodynamic structures responsible for the radiated sound. On a thick symmetrical profile, we highlight a bi-stability phenomenon for which we propose a statistical analysis with an extreme event formalism.

Contact Nathanael Machicoane for more information or to schedule a discussion with the seminar speaker.