Kolmogorov constant: Difference between revisions
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<div class="definition"><div class="short_definition">The proportionality constant α in Kolmogorov theory, which states that the spectral [[energy]] ''S'' in the [[inertial subrange]] is ''S'' = αε<sup>2/3</sup>''k''<sup> | <div class="definition"><div class="short_definition">The proportionality constant α in Kolmogorov theory, which states that the spectral [[energy]] ''S'' in the [[inertial subrange]] is ''S'' = αε<sup>2/3</sup>''k''<sup>-5/3</sup>, for ε representing the [[viscous dissipation]] rate of [[turbulence kinetic energy]], and ''k'' the [[wavenumber]] (inversely proportional to the [[wavelength]] <br/>''or'' [[eddy]] size).</div><br/> <div class="paragraph">Measurements of the 1D longitudinal [[spectrum]] of the [[wind]] in the [[planetary boundary layer]] show that this constant is equal to about 0.5.</div><br/> </div> | ||
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Latest revision as of 14:33, 20 February 2012
Kolmogorov constant
The proportionality constant α in Kolmogorov theory, which states that the spectral energy S in the inertial subrange is S = αε2/3k-5/3, for ε representing the viscous dissipation rate of turbulence kinetic energy, and k the wavenumber (inversely proportional to the wavelength
or eddy size).
or eddy size).
Measurements of the 1D longitudinal spectrum of the wind in the planetary boundary layer show that this constant is equal to about 0.5.
