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February 28, 2014, 14:34 
Shell Refinement running for 99 iterations

#1 
New Member
Paul McClafferty
Join Date: Feb 2014
Posts: 5
Rep Power: 4 
Sorry if this is a stupid question, but I was wondering if anyone could tell me what part of my snappyHexMeshDict is causing this to run for so long? I have tried changing some of it but have no luck reducing the time snappyHexMesh takes to run. Thanks very much


February 28, 2014, 15:05 

#2 
New Member
Paul McClafferty
Join Date: Feb 2014
Posts: 5
Rep Power: 4 
it also took just over an hour simply to run snappyHexMesh, any advice for a newcomer would be greatly appreciated


March 1, 2014, 11:04 

#3 
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Julian Langowski
Join Date: May 2011
Location: Bremen, Germany
Posts: 91
Rep Power: 7 
Dear Paul,
would be helpful to see your SnappyDict and the log as Code:
Code. minRefinementCells you are looking for. Best regards Julian
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March 1, 2014, 13:49 

#4  
New Member
Paul McClafferty
Join Date: Feb 2014
Posts: 5
Rep Power: 4 
Thanks for the response. I have tried changing that to 5, and then 0 but it still runs for a long time. here is the snappyHexMeshDict file
Quote:
Thanks for your help 

March 1, 2014, 14:12 

#5  
New Member
Paul McClafferty
Join Date: Feb 2014
Posts: 5
Rep Power: 4 
with that shmd i am getting the following error
Quote:
Thanks again 

March 1, 2014, 14:23 

#6  
Member
Julian Langowski
Join Date: May 2011
Location: Bremen, Germany
Posts: 91
Rep Power: 7 
Dear Paul,
concerning faster snapping: Try increasing minRefinementCells. Snappy tries to refine the mesh, until the defined number of cells still to refine is reached. Thus it stops earlier, if you increase the value. The other thing: Check the error message: Quote:
Best regards Julian
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March 20, 2015, 07:08 

#7 
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Tobias Holzmann
Join Date: Oct 2010
Location: Leoben (Austria)
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Rep Power: 27 
Is this topic solved?
Otherwise I will give some suggestions.
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Best regards, Tobias Holzmann Some interesting OpenFOAM tutorials, publications and videos on www.Holzmanncfd.de OpenFOAM Beginners should check out the new wiki on wiki.openfoam.com A list of some active OpenFOAM contributers can be found »here« A book about the basics of »Mathematics, Numerics, Derivations and OpenFOAM« can be found on www.Holzmanncfd.de 

March 20, 2015, 11:05 

#8 
New Member
Paul McClafferty
Join Date: Feb 2014
Posts: 5
Rep Power: 4 
Yes it is solved thanks anyway


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