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Conference Papers Year : 2022

Diffusion properties of time-resolved trajectories in the wake behind a cylinder

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Abstract

We investigate the computation of the Lagrangian second-order structure-function for describing the multiscale dy- namics of turbulence based on measured particle trajectory data. Using time-resolved three-dimensional particle tracking velocimetry (4D-PTV), we statistically quantified turbulent properties of the anisotropic and inhomogeneous flow fi eld be hind a cy linder at a Reynolds number of 3900. La grangian statistical analysis has been performed on nearly 12000 trajectories for 4000 time steps.
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hal-03864735 , version 1 (21-11-2022)

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  • HAL Id : hal-03864735 , version 1

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Ali Rahimi Khojasteh, Dominique Heitz. Diffusion properties of time-resolved trajectories in the wake behind a cylinder. 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Jul 2022, Lisbon, Portugal. ⟨hal-03864735⟩

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