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Forum: Main CFD Forum

March 27, 2020, 13:30

Replies: 5

Turbulence spectrum plot

Views: 1,078

Posted By scoop_them_mids

Someone mentioned that in the other conversation...

Someone mentioned that in the other conversation (plot k against wavenumber instead of frequency). One aspect of my problem is checking the shear layer axis in a wind tunnel, definitely worth...

Forum: Main CFD Forum

March 27, 2020, 10:23

Replies: 5

Turbulence spectrum plot

Views: 1,078

Posted By scoop_them_mids

You are right, also I think Paraview has an FFT...

You are right, also I think Paraview has an FFT function but it is probably best to probe the transient data at one particular location during runtime, and then post-treat a text file directly with...

Forum: Main CFD Forum

March 25, 2020, 13:56

Replies: 5

Turbulence spectrum plot

Views: 1,078

Posted By scoop_them_mids

Ok, found some clues here: ...

Ok, found some clues here:
https://www.cfd-online.com/Forums/main/3287-energy-spectrum-calculation-2.html

Forum: Main CFD Forum

March 25, 2020, 09:46

Replies: 5

Turbulence spectrum plot

Views: 1,078

Posted By scoop_them_mids

Turbulence spectrum plot

Hi,

To check the resolution of turbulence in an LES simulation, I would like to plot the turbulent power spectrum density against frequency (the famous one a -5/3 slope), but never attempted...

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