The interaction between the different scale eddies of the turbulence

The turbulence is composed from a large number of eddies of different scales. In the inertial range, the “ 2 3 power-law” for velocity structure function and the “ -5 3 power-law” for energy spectrum were derived by Kolmogorov and were convinced as universal roughly. In this paper, the turbulence wh...

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Bibliographic Details
Published in:Communications in nonlinear science & numerical simulation 1997, Vol.2 (4), p.197-201
Main Authors: Liu, Shida, Liang, Fuming, Liu, Shikuo, Xin, Guojun
Format: Article
Language:English
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Summary:The turbulence is composed from a large number of eddies of different scales. In the inertial range, the “ 2 3 power-law” for velocity structure function and the “ -5 3 power-law” for energy spectrum were derived by Kolmogorov and were convinced as universal roughly. In this paper, the turbulence which obeys the power-law of the autocorrelation function will be taken as a matter of the different scale Brownian motions which obeys the exponent-law of the autocorrelation function and the local self-similarity for different scales. By which we demonstrated that the turbulent exchange coefficient of different scale hierarchy changes quantitatively with its scale size and atmospheric stratification stability.
ISSN:1007-5704
1878-7274
DOI:10.1016/S1007-5704(97)90000-9