25/11/2021, 15:00 — 16:00 — Sala P3.10, Pavilhão de Matemática
Denis Bonheure, Francqui Research Professor (Francqui Foundation) and Université Libre de Bruxelles
Equilibrium configuration of a rectangular obstacle immersed in a channel flow
Fluid flows around an obstacle generate vortices which, in turn, generate lift forces on the obstacle. Therefore, even in a perfectly symmetric framework equilibrium positions may be asymmetric. We show that this is not the case for a Poiseuille flow in an unbounded 2D channel, at least for small Reynolds number and flow rate. We consider both the cases of vertically moving obstacles and obstacles rotating around a fixed pin.
This presentation is based on a joint work with F. Gazzola and P. Galdi.
Please note that the seminar is at room P3.10, not online!