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Conference Papers Year : 2022

Lagrangian diffusion properties of the wake behind a cylinder using time-resolved particle tracking velocimetry

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Abstract

In the present study, we investigate the computation of the Lagrangian second-order structure-function to characterise the multiscale dynamics of turbulence from measured particle trajectories. We performed time-resolved three-dimensional particle tracking velocimetry (4D-PTV) to study the anisotropic and inhomogeneous flow field of the wake behind a cylinder at a Reynolds number equal to 3900. We performed Lagrangian statistical analysis on nearly 12000 trajectories for 4000 time steps.
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hal-03864606 , version 1 (21-11-2022)

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Public Domain

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  • HAL Id : hal-03864606 , version 1

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Ali Rahimi Khojasteh, Dominique Heitz, Lionel Fiabane. Lagrangian diffusion properties of the wake behind a cylinder using time-resolved particle tracking velocimetry. 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12), Jul 2022, Osaka (Online), Japan. 4 p. ⟨hal-03864606⟩

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