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[OpenFOAM] Plotting contour length over time steps

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Old   August 4, 2022, 09:11
Default Plotting contour length over time steps
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Hello,


I'm doing multiphase simulations and analyzing data in Paraview 5.9.


I'm using the following tree :
-Slice
-Reflect
-Contour
-Integrate Variables


This tree can give me the contour length at a given time step.



Would it be possible to plot this contour length over time ? Or at least get a column file with contour length for all time steps ?
If it can't be done easily in Paraview, can it be done in openFoam with some functions ?


Edit : OK, I have found the filter plot data over time where contour length should be available. Only problem is that it takes a lot of memory and you can't chose the data before processing all time steps...
Edit 2 : OK, processing time steps takes huge loads of memory but I can process through 2000 time steps in like an hour or so, so it's doable. Will be much longer for million cell meshes...


Edit 3 : To get your data in a line/column file :
-Contour
-Integrate variables
-Plot data over time (cell data)
-Extract time steps
And then just export the spreadsheet

Last edited by Rotidpor; August 4, 2022 at 09:55. Reason: Dumb questions, just search in the filter list...
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