Abstract
A model of particle diffusion in homogeneous turbulence is derived using an approximation concerning the trajectories of the individual fluid particles. The model equation for the mean concentration is in accordance with some exact results, e.g. those for small and large diffusion times, and Taylor's relationship. In the case of a normal velocity distribution it predicts an almost normal distribution of the mean concentration at all diffusion times. Some possible extensions of the model are outlined.
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Kranenburg, C. On a model of turbulent diffusion. Appl. Sci. Res. 32, 45–59 (1976). https://doi.org/10.1007/BF00540775
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DOI: https://doi.org/10.1007/BF00540775