The anisotropic structure of turbulence and its energy spectrum. Elsinga, G., E. & Marusic, I. Physics of Fluids, 28(1):11701, 4, 2016.
The anisotropic structure of turbulence and its energy spectrum [link]Website  doi  abstract   bibtex   
The spectral energy distribution in turbulent flows is observed to follow a k−5/3 power scaling, as originally predicted by Kolmogorov’s theory. However, the underlying assumptions in Kolmogorov’s theory appear not to hold with most experimental and numerical data showing evidence of small-scale anisotropy and significant direct energy transfer between the large- and the small-scales. Here, we present a flow structure that reconciles the k−5/3 spectrum with small-scale universality, small-scale anisotropy, and direct scale interactions. The flow structure is a shear layer, which contains the small-scales of motion and is bounded by the large-scales. The anisotropic shear layer reveals the expected scaling of the energy spectrum in nearly all directions.
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 title = {The anisotropic structure of turbulence and its energy spectrum},
 type = {article},
 year = {2016},
 pages = {11701},
 volume = {28},
 websites = {http://aip.scitation.org/doi/10.1063/1.4939471},
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 abstract = {The spectral energy distribution in turbulent flows is observed to follow a k−5/3 power scaling, as originally predicted by Kolmogorov’s theory. However, the underlying assumptions in Kolmogorov’s theory appear not to hold with most experimental and numerical data showing evidence of small-scale anisotropy and significant direct energy transfer between the large- and the small-scales. Here, we present a flow structure that reconciles the k−5/3 spectrum with small-scale universality, small-scale anisotropy, and direct scale interactions. The flow structure is a shear layer, which contains the small-scales of motion and is bounded by the large-scales. The anisotropic shear layer reveals the expected scaling of the energy spectrum in nearly all directions.},
 bibtype = {article},
 author = {Elsinga, G E and Marusic, I},
 doi = {10.1063/1.4939471},
 journal = {Physics of Fluids},
 number = {1}
}

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