Seminar: Exact coherent structures in quasi-2D turbulence: Connecting theory with experiments
Prof Roman Grigoriev, from School of Physics -- Georgia Institute of Technology
- https://dfen.upc.edu/ca/esdeveniments/seminar-exact-coherent-structures-in-quasi-2d-turbulence-connecting-theory-with-experiments
- Seminar: Exact coherent structures in quasi-2D turbulence: Connecting theory with experiments
- 2016-07-11T11:30:00+02:00
- 2016-07-11T13:30:00+02:00
- Prof Roman Grigoriev, from School of Physics -- Georgia Institute of Technology
Quan?
11/07/2016 de 11:30 a 13:30 (Europe/Madrid / UTC200)
On?
lecture room B4-212 , Campus Nord , Barcelona
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Despite the immense progress that was made in recent years in
developing a dynamical systems-based description of transitional and
weakly turbulent fluid flows, we have barely scratched the
surface. Almost every new discovery raises as many new questions as it
answers. In this talk we discuss how our recent results for the 2D
Kolmogorov flow help address two fundamental issues. First of all, are
the exact coherent structures that underlie this formalism, or at
least some of their signatures, actually observed in experiment and do
they play an important dynamical role? Second, while periodic orbit
theory predicts that ECS can be used to compute statistical averages,
what is the role ECS play in the dynamics, i.e., how do they fit into
the deterministic description of turbulence?
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