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Old   February 3, 2012, 02:27
Default solution converged
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Shashwat
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Dear folks
I would like to know how to find the solution is converged
Please help me

Please find the attached print screen shot.

I need your help about the converged solution

Regards

shashwat
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Old   February 3, 2012, 03:27
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Check your global parameter of interest to see if it has reached a steady value.
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Old   February 3, 2012, 06:40
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Glenn Horrocks
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This question is related to this FAQ:
http://www.cfd-online.com/Wiki/Ansys...gence_criteria
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Old   February 3, 2012, 07:20
Default convergence
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Quote:
Originally Posted by Graham81 View Post
Check your global parameter of interest to see if it has reached a steady value.
How to set the global parameter

Is it monitor points?

Thanks

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Shashwat
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Old   February 3, 2012, 07:31
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Faisal Durrani
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Suppose you are interested in the final flow patterns. Then for that I would suggest you introduce velocity monitors through out the domain and watch those value reach a certain value during solver. Once they have reached a statistically stationary state then try to reduce your time step value to reduce your residual value to suppose 1e-5. Then you can consider your simulation converged.
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Old   February 5, 2012, 18:16
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Faisal's comment is simplistic and not generally applicable. The FAQ discussion on this topic is more general http://www.cfd-online.com/Wiki/Ansys...gence_criteria
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Old   February 6, 2012, 14:57
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Quote:
Originally Posted by ghorrocks View Post
Faisal's comment is simplistic and not generally applicable. The FAQ discussion on this topic is more general http://www.cfd-online.com/Wiki/Ansys...gence_criteria
Hi, I checked out the link, it says to read a Tips on obtaining convergence section in the CFX documentation. Can you please provide a link to it as I am finding difficulty in finding this section. Thanks
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Old   February 6, 2012, 19:48
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/ANSYS Inc/commonfiles/v140/help/en-us/pdf, then all the PDF files starting with cfx_*.pdf. The Modelling guide, pre, theory and reference manual contain useful information.
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