[andrei.cimpoeru]

Has anyone any idea how to plot the residuals in OpenFoam from a >.log file ?

Many thanks

Andrei

[cutter]

Hi,

you could try pyFoamPlotWatcher.py from the PyFoam utilities.

cutter

[sasanghomi]

Hi ,

Copy the code in a txt file and set it in the case directory,

set logscale y
set title "Residuals"
set ylabel 'Residual'
set xlabel 'Iteration'
plot "< cat log | grep 'Solving for Ux' | cut -d' ' -f9 | tr -d ','" title 'Ux' with lines,\
"< cat log | grep 'Solving for Uy' | cut -d' ' -f9 | tr -d ','" title 'Uy' with lines,\
"< cat log | grep 'Solving for Uz' | cut -d' ' -f9 | tr -d ','" title 'Uz' with lines,\
"< cat log | grep 'Solving for omega' | cut -d' ' -f9 | tr -d ','" title 'omega' with lines,\
"< cat log | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,\
"< cat log | grep 'Solving for p' | cut -d' ' -f9 | tr -d ','" title 'p' with lines
pause 1
reread

gnuplot Residuals -

Now type (in the terminal):

gnuplot residual

It needs gnuplot ...

Sasan.

[Bernhard]

Originally Posted by andrei.cimpoeru

Has anyone any idea how to plot the residuals in OpenFoam from a >.log file ?

The foamLog utility is designed for it. It will extract the residuals and put them in different files.

[andrei.cimpoeru]

I used the foamLog and I have the files I used excel package which comes with ubuntu 11.10 but i want to something which is automatically ........

[Bernhard]

Then you should dig into the first answer you got.

[wyldckat]

Quick answer: http://www.cfd-online.com/Forums/ope...residuals.html

[wernsen]

pyFoamPlot... is the best to do this job ad its simple too!

[Jackie Chen]

Originally Posted by wernsen

pyFoamPlot... is the best to do this job ad its simple too!

no command found. is this a valid command?thanks

[eysteinn]

Originally Posted by Jackie Chen

no command found. is this a valid command?thanks

You need to install pyFoam:
http://openfoamwiki.net/index.php/Contrib_PyFoam