Refining finite-time Lyapunov exponent ridges and the challenges of classifying them.

@article{Allshouse2015RefiningFL,
  title={Refining finite-time Lyapunov exponent ridges and the challenges of classifying them.},
  author={Michael R Allshouse and Thomas Peacock},
  journal={Chaos},
  year={2015},
  volume={25 8},
  pages={
          087410
        }
}
While more rigorous and sophisticated methods for identifying Lagrangian based coherent structures exist, the finite-time Lyapunov exponent (FTLE) field remains a straightforward and popular method for gaining some insight into transport by complex, time-dependent two-dimensional flows. In light of its enduring appeal, and in support of good practice, we begin by investigating the effects of discretization and noise on two numerical approaches for calculating the FTLE field. A practical method… CONTINUE READING

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