Turbulence spectrum

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Revision as of 23:23, 13 October 2021 by CynthiaBluteau (talk | contribs)


Short definition of Turbulence spectrum
Turbulence energy cascade and its expected spectral representation

This is the common definition for Turbulence spectrum, but other definitions maybe discussed within the wiki.


CynthiaBluteau (talk) 01:06, 14 October 2021 (CEST) Add example spectrum with inertial and viscous subranges sketched

Taylor's Frozen Turbulence for converting temporal to spatial measurements. Convert time derivatives to spatial gradients along the direction of profiling using

[math]\displaystyle{ \frac{\partial}{\partial x} = \frac{1}{U_P} \frac{\partial}{\partial t} }[/math] .

Convert frequency spectra into wavenumber spectra using

[math]\displaystyle{ k = f/U_P }[/math] and [math]\displaystyle{ \Psi(k) = U_P \Psi(f) }[/math] .


  • Missing the y-axi variables
  • Lowest frequency and wavenumber resolvable