Séminaire Café (Interne)

Il s’agit d’un exposé assez court (20 min) et assez informel.
Prière aux conférencier·ère·s de ne jamais dépasser 30 min et de vérifier la compatibilité avec le projecteur avant le séminaire.
Les séminaires ont lieu les jeudis après la réunion du laboratoire qui débute à 13h30 dans la bibliothèque du labo sur le campus Jussieu, Barre Cassan, Bât A, 1er étage.

Pour suggérer un titre et envoyer un abstract, contacter Samantha Kucher (samantha.kucher (arobase) espci.fr)
et Gauthier Bertrand (gauthier.bertrand (arobase) espci.fr).


Coffee seminars are supposed to be short and informal presentations (20 min).
Please never last longer than 30 min and check the compatibility of the projector with your computer before the seminar.
Location : Campus Jussieu, Barre Cassan, Bât A, 1er étage
7 quai Saint Bernard
75005 Paris

To suggest a title or send an abstract, please contact Samantha Kucher (samantha.kucher (arobase) espci.fr)
and Gauthier Bertrand (gauthier.bertrand (arobase) espci.fr).

Prochains séminaires café
26 jan Mehdi Bouzid (Chargé de recherche à Univ. Grenoble Alpes)
Post PhD’s adventure trails
2 févr Juan D’Adamo (Researcher at CONICET, Argentina)
Wake and aeroelasticity of a flexible pitching foil

A flexible foil undergoing pitching oscillations is studied experimentally in a wind tunnel with different imposed free stream velocities. The chord-based Reynolds number is in the range 1600–4000, such that the dynamics of the system is governed by inertial forces and the wake behind the foil exhibits the reverse Bénard–von Kármán vortex street characteristic of flapping-based propulsion. Particle image velocimetry (PIV) measurements are performed to examine the flow around the foil, whilst the deformation of the foil is also tracked. The first natural frequency of vibration of the foil is within the range of flapping frequencies explored, determining a strongly-coupled dynamics between the elastic foil deformation and the vortex shedding. Cluster-based reduced order modelling is applied on the PIV data in order to identify the coherent flow structures. Analysing the foil kinematics and using a control-volume calculation of the average drag forces from the corresponding velocity fields, we determine the optimal flapping configurations for thrust generation. We show that propulsive force peaks occur at dimensionless frequencies shifted with respect to the elastic resonances that are marked by maximum trailing edge oscillation amplitudes. The thrust peaks are better explained by a wake resonance, which we examine using the tools of classic hydrodynamic stability on the mean propulsive jet profiles.
16 févr Christine Ozouf (Responsable accueil et mobilité des chercheurs et étudiants à l’international, SU)
Accueillir un chercheur étranger

Haut de page

Informations Pratiques

Laboratoire : 01 40 79 45 22
Directeur : Damien Vandembroucq
Codirecteur : Philippe Petitjeans
Administratrice : Frédérique Auger (01 40 79 45 22)
Gestionnaire : Claudette Barez (01 40 79 58 53)
Courriel : dir (arobase) pmmh.espci.fr