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Attracting Lagrangian coherent structures on Riemannian manifolds

Daniel Karrasch1

  • 1ETH Zürich, Institute for Mechanical Systems, Leonhardstrasse 21, 8092 Zürich, Switzerland.

Chaos (Woodbury, N.Y.)
|September 3, 2015
PubMed
Summary

Repelling and attracting Lagrangian Coherent Structures (LCSs) are typically identified using forward and backward finite-time Lyapunov exponent (FTLE) fields, respectively. This study reveals that attracting LCSs also appear as forward FTLE ridges in 2D incompressible flows, requiring new characterization methods.

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