Extreme Events and Acceleration Statistics at High Reynolds Number (INVITED)

Abstract eng:
Statistics of dissipation, enstrophy and acceleration from a well-resolved high Reynolds number simulation of forced isotropic turbulence are reported. Observations of extreme events at intensity levels much higher than commonly reported and of a topologically distinct nature are related to conditional statistics that are useful for future efforts in improving stochastic modeling of turbulent dispersion, through incorporating the effects of fine-scale intermittency on the fluid particle acceleration.

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