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Old   March 12, 2013, 06:57
Default Vorticity Contour
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Hey Foamers,

i've used the vorticity utility to calculate the vorticuty of my flow but i don't know how to plot it in Paraview. Is there any way except the stream tracer->coloured by : vorticity?

Thanks
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Old   May 29, 2013, 11:07
Default hello
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you can directly choose the viarible Vorticity in the board in Paraview.It's besides the P.U.
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Old   May 29, 2013, 14:56
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Thanks! After weeks i found out that you must first select it from the fields menu below "mesh parts".

thanks anyway!
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Old   May 30, 2013, 03:24
Default About the displacement
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vSass:
Do you know how to extract or compute the displacement of a plate moving in a flow field? I am trying a FSI problem,but I can't get it.
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Old   May 30, 2013, 03:47
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I have a little experience with FSI problems using OpenFoam.

Which solver are you using?
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Old   June 2, 2013, 02:10
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hi
whats a FSI problem?what does it stands for?
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Old   June 2, 2013, 07:16
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It stands for flow-structure-interaction, and it's about calculating stresses and displacements of the structure due to the presence of the flow.
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Old   July 1, 2013, 12:41
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Hi Vasileios
how do you define vorticity in 0 folder?
my case gives an error on it.
Code:
Time = 0.00027
    Reading U
    Calculating vorticity
vorticity max/min : 6832530.652 0.1754425241

End


Time = 0.000271
    Reading U
    Calculating vorticity
vorticity max/min : 6886705.616 0.1203675751

End


Time = 0.000272
    Reading U
    Calculating vorticity
vorticity max/min : 6860999.599 0.1231681867

End


Time = 0.000273
    Reading U
    Calculating vorticity
vorticity max/min : 6779457.723 0.1109132494

End


Time = 0.000274
    Reading U
    Calculating vorticity
vorticity max/min : 6905465.041 0.03421409343

End


Time = 0.000275
    Reading U
    Calculating vorticity
vorticity max/min : 7015169.336 0.2944563456

End


Time = 0.000276
    Reading U
    Calculating vorticity
vorticity max/min : 7120398.407 0.1211598064

End


ehsan@Ehsan-com:~/Desktop/WR$ paraFoam 
created temporary 'WR.OpenFOAM'


--> FOAM FATAL IO ERROR: 
"ill defined primitiveEntry starting at keyword 'T0_4=973;' on line 16 and ending at line 65"

file: /home/ehsan/Desktop/WR/0/include/variables_R at line 65.

    From function primitiveEntry::readEntry(const dictionary&, Istream&)
    in file lnInclude/IOerror.C at line 132.

FOAM exiting
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Old   July 2, 2013, 08:07
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Well, you don't need to define it yourself. What is your doubt about?
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Old   July 2, 2013, 09:42
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that's OK now.how can improve the quality of contoour shapes?they have too contrast from blue to red.do you change the range in paraview?till what value?
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Old   July 2, 2013, 10:10
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Maybe the number of colours that you choose for your presentation can fix the problem. I use 17 colours. You can adjust them by clicking on the "Edit Colour Map" button.
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Old   July 2, 2013, 11:02
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that's very better now.I confined its range scal to [-20000,200000] and 17 colors as you said.
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