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May 5, 2011, 09:44 
questions to the plot of pyFoamPlotWatcher

#1 
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Hi,
I have simulated a steady state flow of air with no heat transfer with simpleFoam. Because it is my first time using the pyFoamPlotWatcher I have some questions:  I think the epsilon_max is very strange. Can I plot the epsilon values to see where the high epsilon value appears in the geometry?  What is meant with CUmultative and Global?  Is it fine that the residues begin to jitter when they shrink? Is this due to the logarithmic scale? Best Regards, tH3f0rC3 

May 5, 2011, 11:03 

#2 
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don lenardo
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you can use paraView to show the epsilon values of your geometry!


May 9, 2011, 02:59 

#3  
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Quote:
And do you know what is meant with continuity? cumultative is plotted global and cumultative. As I understand, cumultative is the summed version of global. But what is meant with global continuity? Best Regards, tH3f0rC3 Last edited by tH3f0rC3; May 9, 2011 at 03:28. 

May 9, 2011, 03:33 

#4 
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don lenardo
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Bounding variables sometimes occur. Their values depend amongst others on the geometry. So in your cae these values could be correct!
In my (complex) geometry, bounding variables occur too in some loadcases but I "have to live with them" and neglect them. 

May 9, 2011, 03:43 

#5 
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Ah ok,
thanks for your answer! 

February 20, 2015, 06:40 
Continuity

#6 
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Jan N. Wieczorek
Join Date: Jul 2014
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Am I right if I assume the "Continuity" plot to show the error of the solution of the continuity equation?
normally it should be zero that is (as far as I can see): no mass is added and nothing is lost. Is this correct?  Another question: why does the residual plot always show the first/initial residual of a timestep? shouldn't it be displaying the last/final residual after the iterations done? 

March 5, 2015, 09:25 

#7  
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Alex
Join Date: Oct 2013
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Hi all,
Quote:
Regards, Alex
__________________
Web site where I present my Master's Thesis: foamingtime.wordpress.com The case I talk about in this site was solved with chtMultiRegionSimpleFoam solver and involves radiation. Some basic tutorials are also resolved step by step in the web. If you are interested in these matters, you are invited to come in! 

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