1er Symposium canadien en analyse numérique et calcul scientifique
Accurate detection of elliptic transport barriers in three-dimensional flows
Keith, Brendan (1) and George Haller (2)
(1) McGill University, (2) ETH Zurich

We use a recent geodesic theory of transport barriers to compute parametrized surfaces acting as barriers to transport in three-dimensional steady flows. These barriers are formed by shear-type Lagrangian Coherent Structures (LCS) that approximate two-dimensional invariant tori. Our approach uncovers barrier surfaces at a previously unseen level of detail and accuracy. As applications, we discuss integrable and non-integrable three-dimensional fluid flows.

Mercredi, 19 juin, 16h00
Salle Des Plaines C