Event Detail

Event Type: 
Applied Mathematics and Computation Seminar
Date/Time: 
Thursday, October 27, 2011 - 06:30 to 07:30
Location: 
Burt 193

Speaker Info

Institution: 
McGill University, Dept. of Mech. Engrg. and Dept. of Mathematics and Statistics
Abstract: 

We introduce a unified view on two-dimensional transport barriers in general
unsteady flows. Seeking transport barriers as least deforming material lines,
we obtain transport barriers as minimal geodesics under an appropriate metric
induced by the flow on the space of initial positions. The geodesics are
obtained as a solution of an ordinary differential equation, and hence can be
extracted in a smooth, parametrized form. We show applications to model
flows and geophysical data sets.