Journal of Visualization

, Volume 10, Issue 1, pp 99-110

First online:

3C PIV and PLIF measurement in turbulent mixing

Round jet impingement
  • Reungoat D. Affiliated withTREFLE laboratory
  • , Rivière N. Affiliated withTREFLE laboratoryCEA CESTA
  • , Fauré J. P. Affiliated withCEA CESTA

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The present work focuses on the measurements of instantaneous concentration fields of a passive scalar due to an impinging round jet injection into a liquid filled rectangular tank. Simultaneous measurements of velocity and passive scalar concentration fields have been conducted by using Particle Image Velocimetry (planar 2C and 3C PIV) and Planar Laser Induced Fluorescence (PLIF) techniques. The mixing injection behavior is analyzed for several injection values of depth and flow rate. Results showed the classical developing and self-similar regions of the jet, the mixing layer and the coupled concentration and velocity fields due to impingement. Finally, 3C PIV reveals a 3D flow jet structure which seems to be a swirl that does not disturb 2D analysis.


Impinging jet Turbulent SPIV PLIF