On the geometry of turbulent mixing

  title={On the geometry of turbulent mixing},
  author={Emmanuel Villermaux and Claudia Innocenti},
  journal={Journal of Fluid Mechanics},
  pages={123 - 147}
We investigate the temporal evolution of the geometrical distribution of a passive scalar injected continuously into the far field of a turbulent water jet at a scale d smaller than the local integral scale of the turbulence. The concentration field is studied quantitatively by a laser-induced- fluorescence technique on a plane cut containing the jet axis. Global features such as the scalar dispersion from the source, as well as the fine structure of the scalar field, are analysed. In… 
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