Lagrangian measurement of vorticity dynamics in turbulent flow

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Shake-The-Box: Lagrangian particle tracking at high particle image densities (2016, methodology): “This technique has been successfully used for fundamental research, e.g. to investigate acceleration statistics (La Porta et al. 2001), velocity statistics (Xu et al. 2006) or vorticity dynamics (Lüthi et al. 2005) by examining (few) particle tracks over very long examination times.”
Universal aspects of small-scale motions in turbulence (2010, background): “Furthermore, comparisons of the dynamic evolution of vorticity and passive material lines with and without diffusion (Ohkitani 2002; Lüthi et al. 2005) have indicated the importance of viscosity in maintaining the alignment of vorticity with the intermediate eigenvector and the vorticity dynamics…”