Abstract
Measurements are presented for a turbulent diffusion flame jet of carbon monoxide in coflowing air. Detailed profiles of average velocity, turbulence intensity, average temperature, and species concentrations were measured at a Reynolds number of 1.14 × 10 4. Several checks on the data indicated good accuracy of the measurements. A model was also developed for turbulent diffusion flames on the basis of their local laminar flame structure. Laminar flame calculations, using a global reaction rate for CO oxidation, provided unique relationships between thermochemical variables and the mixture fraction. These relationships along with a K-ϵ-g model of turbulence in Favre-averaged form were used to make predictions in the CO/air diffusion flame jet. The model predictions showed good agreement for x D ≤ 50 , with some discrepancy for x D > 50 .
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