[Technical] how to order the vertices in blockMesh?

andrei.cimpoeru · December 11, 2012, 10:50

Hi

Is there any rule regarding the order of the vertices in a blockMesh file.

I know that the first entry in the blockmesh file is vertex 0. how do you find 5 6 7 8 .......
I would appreciate your help?

Regards

blacksquirrel · December 11, 2012, 12:09

The vertices are in the order you put them in the file.
The first vertex is 0. the next one is number 1 and so on. It's totally up to you.

The complicated part is the right declaration of the blocks and patches, because your local coordinate system is defined by the order of the vertices in the block (which isn't necessarily (0 1 2 ..7).

More info can be found here:
http://www.openfoam.org/docs/user/blockMesh.php

andrei.cimpoeru · December 11, 2012, 14:17

thanks man

December 11, 2012, 10:50	how to order the vertices in blockMesh?	#1
andrei.cimpoeru Member AndreiCFD Join Date: Nov 2012 Posts: 47 Rep Power: 14	Hi Is there any rule regarding the order of the vertices in a blockMesh file. I know that the first entry in the blockmesh file is vertex 0. how do you find 5 6 7 8 ....... I would appreciate your help? Regards

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
blockMesh - two blocks with different vertices	Rojj	OpenFOAM Pre-Processing	3	March 21, 2023 21:39
Help needed! How to continue with 2nd order calculations from 1st order solution?	LeoKnight7	FLUENT	4	July 1, 2016 05:15
what's faster, 2nd order eqs from the begining or 1st order and then 2nd order eqs?	TimberJ3	FLUENT	0	April 1, 2014 10:08
Unstable flow simpleFoam 2nd order	Valle	OpenFOAM	0	August 26, 2009 09:12
1st order temporal & 2nd order spatial	Prateep Chatterjee	FLUENT	0	January 19, 2003 01:31

December 11, 2012, 12:09		#2
blacksquirrel Member Join Date: Jun 2011 Posts: 53 Rep Power: 15	The vertices are in the order you put them in the file. The first vertex is 0. the next one is number 1 and so on. It's totally up to you. The complicated part is the right declaration of the blocks and patches, because your local coordinate system is defined by the order of the vertices in the block (which isn't necessarily (0 1 2 ..7). More info can be found here: http://www.openfoam.org/docs/user/blockMesh.php

December 11, 2012, 14:17		#3
andrei.cimpoeru Member AndreiCFD Join Date: Nov 2012 Posts: 47 Rep Power: 14	thanks man