Joint statistics of acceleration and vorticity in fully developed turbulence

Details Joint statistics of acceleration and vorticity in fully developed turbulence Joint statistics of acceleration and vorticity in fully developed turbulence

2005-03-05

arxiv.org/abs/nlin/0503007v1

Nonlinear Sciences

Chaotic Dynamics

8 pages, 6 figures

Scientific paper

10.1080/14685240500209874

We report results from a high resolution numerical study of fluid particles transported by a fully developed turbulent flow. Single particle trajectories were followed for a time range spanning more than three decades, from less than a tenth of the Kolmogorov time-scale up to one large-eddy turnover time. We present results concerning acceleration statistics and the statistics of trapping by vortex filaments conditioned to the local values of vorticity and enstrophy. We distinguish two different behaviors between the joint statistics of vorticity and centripetal acceleration or vorticity and longitudinal acceleration.

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