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Instantaneous volumic concentration and velocity measurements of a jet in crossflow for the evaluation of the entrainment

Abstract

A new method employing instantaneous 3D coupled measurements of planar laser-induced fluorescence and particle Image velocimetry is developed to compute 3D fluid fluxes. The three-dimensional fields of concentration and velocity are used for identifying the vortex structures and for the evaluation of the fluxes at the interface between a jet exiting in a crossflow. This approach is helpful for the 3D estimation of the momentum and scalar transport at the turbulent/non-turbulent interface and will help understanding the mixing process.

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Acknowledgments

This work is funded partially by the 13th CPER and the ANR VIVE3D. Their supports are greatly acknowledged.

Author information

Correspondence to A. Berchet.

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Berchet, A., Thomas, L., Braud, P. et al. Instantaneous volumic concentration and velocity measurements of a jet in crossflow for the evaluation of the entrainment. Exp Fluids 54, 1608 (2013) doi:10.1007/s00348-013-1608-1

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Keywords

  • Vortex
  • Particle Image Velocimetry
  • Root Mean Square Deviation
  • Concentration Field
  • Particle Image Velocimetry Measurement