[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: 12	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

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OpenFOAM course for beginners	Jibran	OpenFOAM Announcements from Other Sources	2	November 4, 2019 09:51
OpenFOAM v3.0+ ??	SBusch	OpenFOAM	22	December 26, 2016 15:24
renumberMesh in openfoam	cctv	OpenFOAM Programming & Development	4	November 13, 2013 16:58
OpenFOAM Foundation releases OpenFOAM 2.2.2	opencfd	OpenFOAM Announcements from ESI-OpenCFD	0	October 14, 2013 08:18
64bitrhel5 OF installation instructions	mirko	OpenFOAM Installation	2	August 12, 2008 19:07

December 11, 2013, 06:01		#2
Thangam Member Thangam Natarajan Join Date: Dec 2010 Location: Perth Posts: 70 Rep Power: 15	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.