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Old   June 6, 2019, 05:53
Default pyFoamPlotRunner
Owais Shabbir
Join Date: May 2019
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Dear All,

I have a very simple question. I am running my case and I have around 3000 steps to be simulated. I run my case using simpleFoam > log.simplefoam
When I am looking at the graphs I notice that epsilon shoots to an extremely high value as shown in the pic. But later it gets better and I would like to read the values been updated on the graph but the y-axis is extended making it impossible to read the instant values. Is there a way to make the 'Bounded Variables' graph to only show last few steps value instead of showing it from 0.

Secondly does it matter if the epsilon behaves initially in this behavior because the other variables don't show a similar trend. The Cumulative Continuity also tries to converge at -60 which I can't really judge if it is a good value or not.

Details about my case:

simpleFoam with k-epsilon model
Calculating epsilon = (0.09^0,75)*(k^1,5)/L
Relaxation factors: p=0,2 U=0,7 k=0,4 epsilon=0,6
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Old   June 11, 2019, 09:30
Default one possible solution
Owais Shabbir
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For people stumbling upon this question, I found an alternative way for this.

In the controlDict file, for the startFrom option chose the entry latestTime. Simply restart the simulation and the graphs will be updated with the new values.

Remarks: Some errors might show up in the restarting of the simulation and that is because the final time folder you stopped at isn't completed. So just delete that folder and it will work fine.

If anyone else want to give their insights on this, I'd also appreciate it.
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continuity residual, gnuplot, pyfoamplotrunner, residuals

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