The relative diffusion in homogeneous isotropic turbulence is studied in this letter. The mean square of the separation (Y2)∝t3 has been shown by the mean-field approximation as well as the analysis based upon the assumption that the particle displacement has the Gaussian distribution. The analytical results are in agreement with the conclusion of Richardson 4/3 law.
Abstract
The relative diffusion in homogeneous isotropic turbulence is studied in this letter. The mean square of the separation (Y2)∝t3 has been shown by the mean-field approximation as well as the analysis based upon the assumption that the particle displacement has the Gaussian distribution. The analytical results are in agreement with the conclusion of Richardson 4/3 law.
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参考文献
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