Evidence for finite dissipation during vortex reconnection

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• Rober Kerr, University of Warwick
• Thursday 27 February 2020, 15:00-16:00
• MR 14.

If you have a question about this talk, please contact Edriss S. Titi.

This presentation will show evidence that growth of the volume-integrated enstrophy Z through, then beyond, the first reconnection of isolated vortices is sufficient to first show convergence of √νZ. This is followed by convergence of the dissipation rate ε=νZ over a finite time, consistent with the existence of finite-time dissipation anomalies. But only so long as the domain size V increases as ν decreases. Also to be discussed are the evolution of spectra, the helicity and the helicity transfer.

This talk is part of the Applied and Computational Analysis series.

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