Reading Co-ordinates from a file for blockMesh

fu-ki-pa · June 28, 2011, 06:30

Greetings !

Is there any way I can read the coordinates from a file rather than using simpleGrading in blockMesh . To make my point clear , I have an uniform mesh in streamwise (say x) and spanwise (say z) directions in a channel and the third direction which is non-uniform (say y) co-ordinate is to be read from a file. Can i do it by tweaking the blockMeshDict file ?.

I will be more than happy if i can generate using an expression (Say, Tanh or Sinh functions) inside blockMeshDict

Thanks and Regards

fu-ki-pa

Bernhard · June 28, 2011, 06:45

This is not possible with the original blockMesh afaik. But if you make your own utility, based on this blockMesh, you will definitely be able to do something like this.

olesen · June 29, 2011, 05:20

Quote:

Originally Posted by Bernhard

This is not possible with the original blockMesh afaik. But if you make your own utility, based on this blockMesh, you will definitely be able to do something like this.

You'll also notice that blockMesh now has its own library routines (see http://repo.or.cz/w/OpenFOAM-2.0.x.g...mesh/blockMesh) which should make this type of customization somewhat easier.

June 28, 2011, 06:30	Reading Co-ordinates from a file for blockMesh	#1
fu-ki-pa New Member Fu Join Date: Jun 2010 Location: India Posts: 4 Rep Power: 4	Greetings ! Is there any way I can read the coordinates from a file rather than using simpleGrading in blockMesh . To make my point clear , I have an uniform mesh in streamwise (say x) and spanwise (say z) directions in a channel and the third direction which is non-uniform (say y) co-ordinate is to be read from a file. Can i do it by tweaking the blockMeshDict file ?. I will be more than happy if i can generate using an expression (Say, Tanh or Sinh functions) inside blockMeshDict Thanks and Regards fu-ki-pa

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June 28, 2011, 06:45		#2
Bernhard Senior Member Bernhard Join Date: Sep 2009 Location: Delft Posts: 513 Rep Power: 9	This is not possible with the original blockMesh afaik. But if you make your own utility, based on this blockMesh, you will definitely be able to do something like this.