Steady state conjugate heat transfer analysis in openfoam version 7

srikarg · September 22, 2019, 07:42

Hi, I am running "chtMultiRegionSimpleFoam" solver and irrespective of the case, meshing and number of iterations, I get the note:

"Regions not converged after XXXXX iterations". I even tried decreasing the tolerance to 0.1, still the note comes

Can anyone tell me what could have been done better?
I am performing simulation for steadystate, laminar and incompressible flow.

HPE · September 22, 2019, 08:08

How to give enough info to get help

How to create a Minimal, Reproducible Example

amuzeshi · September 22, 2019, 11:31

Quote:

Originally Posted by srikarg

Hi, I am running "chtMultiRegionSimpleFoam" solver and irrespective of the case, meshing and number of iterations, I get the note:

"Regions not converged after XXXXX iterations". I even tried decreasing the tolerance to 0.1, still the note comes

Can anyone tell me what could have been done better?
I am performing simulation for steadystate, laminar and incompressible flow.

If you upload your case I can cross-check your settings. fvScheme and fvSolution are not enough to judge about it.

srikarg · September 22, 2019, 11:55

Quote:

Originally Posted by amuzeshi

If you upload your case I can cross-check your settings. fvScheme and fvSolution are not enough to judge about it.

Please find the case through the link

https://drive.google.com/drive/folde...8N?usp=sharing

amuzeshi · September 27, 2019, 10:38

Quote:

Originally Posted by srikarg

Please find the case through the link

https://drive.google.com/drive/folde...8N?usp=sharing

Your case does not include ' thermophysicalProperties ' in constant/fluid or sink.
So it can not be run.

amuzeshi · September 27, 2019, 13:31

Quote:

Originally Posted by srikarg

Please find the case through the link

https://drive.google.com/drive/folde...8N?usp=sharing

BTW, what kind/version of openfoam do you use?

srikarg · September 28, 2019, 02:36

Quote:

Originally Posted by amuzeshi

BTW, what kind/version of openfoam do you use?

I use Openfoam version 5. Kindly find the updated case at

https://drive.google.com/drive/folde...dh?usp=sharing

amuzeshi · October 11, 2019, 04:06

Quote:

Originally Posted by srikarg

I use Openfoam version 5. Kindly find the updated case at

https://drive.google.com/drive/folde...dh?usp=sharing

Dear Sirkarg,
As I use openfom > 6 and this solver is deprecated hereafter, I can not reproduce your example until I have enough time to install version 5. Sorry for late.

Best,
Ali

amuzeshi · October 11, 2019, 07:58

Quote:

Originally Posted by srikarg

Hi, I am running "chtMultiRegionSimpleFoam" solver and irrespective of the case, meshing and number of iterations, I get the note:

"Regions not converged after XXXXX iterations". I even tried decreasing the tolerance to 0.1, still the note comes

Can anyone tell me what could have been done better?
I am performing simulation for steadystate, laminar and incompressible flow.

Can you share your solution output log (terminal)?

Best,
Ali

September 22, 2019, 07:42	Steady state conjugate heat transfer analysis in openfoam version 5	#1
srikarg New Member Srikar Join Date: Sep 2019 Posts: 14 Rep Power: 5	Hi, I am running "chtMultiRegionSimpleFoam" solver and irrespective of the case, meshing and number of iterations, I get the note: "Regions not converged after XXXXX iterations". I even tried decreasing the tolerance to 0.1, still the note comes Can anyone tell me what could have been done better? I am performing simulation for steadystate, laminar and incompressible flow. Last edited by srikarg; September 22, 2019 at 08:46.

September 22, 2019, 08:08		#2
HPE Senior Member Herpes Free Engineer Join Date: Sep 2019 Location: The Home Under The Ground with the Lost Boys Posts: 932 Rep Power: 11	How to give enough info to get help How to create a Minimal, Reproducible Example __________________ The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror

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