[mesh manipulation] renumberMesh in openfoam

cctv · October 22, 2013, 06:55

Hi
Does anyone know that the function renumberMesh would change the value of points and why? I run "renumberMesh -orderpoints" and found out that the value of points had been changed. I was so surprised about this.
Thanks
Yu

Thangam · December 11, 2013, 06:01

The renumberMesh is an utility to reduce the bandwidth by renumbering the cell list. OF orders the nodes in a sequential manner so that once renumbered, this will use much less memory and convergence is achieved relatively quickly. It is always a good practice to perform this task before processing your case. I think this should in no way affect your geometry and your mesh.

October 22, 2013, 06:55	renumberMesh in openfoam	#1
cctv Member Yu CAO Join Date: May 2013 Posts: 76 Rep Power: 13	Hi Does anyone know that the function renumberMesh would change the value of points and why? I run "renumberMesh -orderpoints" and found out that the value of points had been changed. I was so surprised about this. Thanks Yu

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December 11, 2013, 06:01		#2
Thangam Member Thangam Natarajan Join Date: Dec 2010 Location: Perth Posts: 70 Rep Power: 16	The renumberMesh is an utility to reduce the bandwidth by renumbering the cell list. OF orders the nodes in a sequential manner so that once renumbered, this will use much less memory and convergence is achieved relatively quickly. It is always a good practice to perform this task before processing your case. I think this should in no way affect your geometry and your mesh.