Vortex stretching and enstrophy production in high Reynolds number turbulence

@article{Buaria2020VortexSA,
  title={Vortex stretching and enstrophy production in high Reynolds number turbulence},
  author={Dhawal Buaria and Eberhard Bodenschatz and Alain Pumir},
  journal={Physical Review Fluids},
  year={2020}
}
An essential ingredient of turbulent flows is the vortex stretching mechanism, which emanates from the non-linear interaction of vorticity and strain-rate tensor and leads to formation of extreme events. We analyze the statistical correlations between vorticity and strain rate by using a massive database generated from very well resolved direct numerical simulations of forced isotropic turbulence in periodic domains. The grid resolution is up to $12288^3$, and the Taylor-scale Reynolds number… 

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