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Power Spectral Density for velocity with postProcessing "noise" |
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February 10, 2020, 05:03 |
Power Spectral Density for velocity with postProcessing "noise"
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#1 |
Member
niewiemnic
Join Date: Jan 2018
Location: Niemcy
Posts: 80
Rep Power: 8 |
Hello,
I am searching info for the power spectral density of velocity (uu, boths in the direction of stream) in the phase of postprocessing. It is clear that I can get results about PSD of pressure (fluctuation?) with e.g. Code:
mpirun -np 16 noise -dict system/noiseDict-point -parallel My simulation is an aeroacoustic calculation about rod-airfoil configuration and the points on which I will get results are nearby rod and airfoil. Does someone have any idea for that? |
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February 10, 2020, 10:45 |
I guess I found the answer...
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#2 |
Member
niewiemnic
Join Date: Jan 2018
Location: Niemcy
Posts: 80
Rep Power: 8 |
At first I collect the info about velocity fields with controlDict
Code:
probes { type patchProbes; libs ("libsampling.so"); writeControl timeStep; timeStart 2.0; patch cylinder; probeLocations ( (0.4 0.2 0.08) // E (-0.4 0.2 0.08) // W (0.07 0.2 0.3) // N (0.07 0.2 -0.3) // S ); fields (U p forces:force Curle); } Code:
pointNoiseCoeffs { windowModel Hanning; files ( "postProcessing/probes/0.1/U" "postProcessing/probes/0.1/p" "postProcessing/probes/0.1/Curle" ); ... } |
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March 30, 2020, 16:07 |
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#3 |
Member
niewiemnic
Join Date: Jan 2018
Location: Niemcy
Posts: 80
Rep Power: 8 |
Unfortunately it doesnt work for U... Nobody knows how can I do postprocessing the PSD of velocity?
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June 25, 2020, 09:30 |
Small test for validation of psd
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#4 | |
New Member
Kossivi GOKPI
Join Date: Jun 2010
Location: France
Posts: 28
Rep Power: 15 |
Hello spalartallmaras,
I'm working currently the OF version18+ in order to use psd utility. Everything is working quite good for pressure PSD calculation. Nevertheless I'm looking for a samll test case with result with other sofware for example Fluent to compare with what I get with OF. I would like to know if you have a test case to validate the result of OF. Kind regards, Kossivi. Quote:
__________________
Thanks in advance, Kossivi. |
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