renumberMesh increases max aspect ratio

ayoros · April 2, 2009, 10:15

Hi all,

Sometimes I see renumberMesh increasing max aspect ratio, max skewness, max non - orthogonality.

I find this weird because it is only supposed to reorder the nodes, not to move them.

I must say that it happens when large aspect ratio (around 20) exists before renumbering.

Did anyone experiment such a behavior ? Or must I pay more attention to my initial mesh ?

Thanks,
Fabien

mattijs · April 3, 2009, 06:17

Might be a write truncation problem. Increase the write precision in your controlDict or even better set the writeFormat to binary.

ayoros · April 3, 2009, 08:18

Thanks Mattijs ! You were right. I turned back write precision to 6 and renumberMesh works well.

April 2, 2009, 10:15	renumberMesh increases max aspect ratio	#1
ayoros New Member Join Date: Mar 2009 Posts: 29 Rep Power: 17	Hi all, Sometimes I see renumberMesh increasing max aspect ratio, max skewness, max non - orthogonality. I find this weird because it is only supposed to reorder the nodes, not to move them. I must say that it happens when large aspect ratio (around 20) exists before renumbering. Did anyone experiment such a behavior ? Or must I pay more attention to my initial mesh ? Thanks, Fabien

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April 3, 2009, 06:17		#2
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	Might be a write truncation problem. Increase the write precision in your controlDict or even better set the writeFormat to binary.

April 3, 2009, 08:18		#3
ayoros New Member Join Date: Mar 2009 Posts: 29 Rep Power: 17	Thanks Mattijs ! You were right. I turned back write precision to 6 and renumberMesh works well.