[sachinlb]

Dear All,
May I know how to plot converegence history in openfoam?

[stevenvanharen]

The foamLog script will generate xy-files based on the log file generated by the run.

[boger]

You can also monitor convergence "real time" using the pyFoam package.

[santiagomarquezd]

There is an old thread which could be helpful (this is the way I monitor residuals):


Tutorial of how to plot residuals !

Regards

[fferroni]

Hello.

I have the same question, however, when I run FoamLog, the outputs files I get are only for the first time-step of my solution, so they only have 1 x-y entry in each of them. I checked the log file and it has many more timesteps..?

Kind Regards,

Francesco

[hawkeye321]

Do you guys know how I can plot residuals at a special time step?

[Lieven]

What do you mean exactly with "at a special time step".

Using the foamLog utility you can plot them in function of the simulated time but I don't know if this is what you want to do...

[hawkeye321]

For example, how can I plot the residuals at t = 5s or so,e other time step?

[hawkeye321]

or lets say, how can I plot the final residuals as a function of time?

[gschaider]

Originally Posted by mahdiiowa

or lets say, how can I plot the final residuals as a function of time?

I'd personally recommend pyFoamPlotRunner.py/pyFoamPlotWatcher.py from PyFoam, but there is a whole thread that discusses different options:

http://www.cfd-online.com/Forums/ope...-new-post.html