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An optical technique for measuring mean and fluctuating values of particle concentrations in round jets


Measurements of soot particle absorption along a line of sight have been carried out in turbulent jet flames. This makes it possible to determine both the time-averaged and the root mean square values of particle concentrations in these flames. This technique also gives the integral length scales in a plane perpendicular to the axis.

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Coppalle, A., Joyeux, D. An optical technique for measuring mean and fluctuating values of particle concentrations in round jets. Experiments in Fluids 16, 285–288 (1994).

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  • Particle Concentration
  • Soot Particle
  • Optical Technique
  • Integral Length Scale
  • Soot Particle Absorption