Experiments in Fluids

, Volume 48, Issue 5, pp 809–822 | Cite as

Characterization of a system generating a homogeneous isotropic turbulence field by free synthetic jets

  • Charles Goepfert
  • Jean-Louis Marié
  • Delphine Chareyron
  • Michel Lance
Research Article

Abstract

A facility inspired by Hwang and Eaton (2004a, b) for generating a homogeneous isotropic turbulence was built, the objective being to study evaporating droplets in the presence of turbulence. Turbulence was produced by the mixing of six synthetic jets, in ambient atmosphere. Combined PIV and LDA techniques were used to measure the statistical turbulence properties. The turbulence produced was found to be homogeneous isotropic with a small mean flow within a domain having an average size of 50 mm × 50 mm × 50 mm. The rms fluctuations were of the order of 0.9 m/s, corresponding to a Taylor Reynolds number of 240 and an integral length scale of about 40 mm. This apparatus proved to be well suited to the study of the evaporation of droplets in a controlled turbulence field.

Notes

Acknowledgments

The authors acknowledge the CNRS (Centre National de la Recherche Scientifique) and the French Ministry of Research and Technology (for their financial support. They express their gratitude to M. Massot (Laboratoire EM2C, ECP, UPR CNRS 288) for his scientific collaboration. They also acknowledge N. Grosjean and E. Jondeau for their efficient technical assistance in the handling of measuring techniques.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Charles Goepfert
    • 1
    • 2
  • Jean-Louis Marié
    • 1
    • 2
  • Delphine Chareyron
    • 1
    • 2
  • Michel Lance
    • 1
    • 2
  1. 1.Laboratory of Fluid Mechanics and Acoustics UMR CNRS 5509University of LyonLyonFrance
  2. 2.Ecole Centrale de Lyon, Université Lyon1, INSA LyonEcullyFrance

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