Tomographic long-distance microPIV to investigate the small scales of turbulence in a jet at high Reynolds number

2021/11/25 by Daniele Fiscaletti, Daniele Ragni, Edwin F. J. Overmars +2 · 1 citation
Physics and Astronomy · #physics.flu-dyn

paper · pdf · doi:10.1007/s00348-021-03359-5

arxiv created 2021/11/25 · arxiv updated 2022/01/05

Abstract

The small scales of turbulence in a high-Reynolds-number jet (Re_λ ≈ 350) are investigated with a \textmu PIV setup to overcome the optical limitations of conventional tomographic PIV setups. With the aim of validating the performances of tomographic long-distance \textmu PIV, analyses are carried out involving statistical aspects of the small scales of turbulence. The technique is assessed and the data are bench-marked to be applied to the analysis of any three dimensional small-scale phenomena in large-scale flow domains.

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