scaling a mesh generated by gmsh

mb.pejvak · September 26, 2019, 05:43

I want to scale a grid generated by gmsh to use in OpenFoam, but using

Code:

gmshToFoam -help

does not show there is option for scaling while converting. I can modify the .geo file, but when I do it I got some error while converting, otherwise it converted without any error. Is there any way to do what I explained?

mb.pejvak · September 26, 2019, 11:37

The problem arises from convering geo file to msh file with version 4. it should be done instead with version 2.

LuckyTran · September 27, 2019, 13:38

By the way there is an OpenFOAM utility for scaling a mesh, e.g.

Code:

transformPoints -scale "(1 1 1)"

You can use this after you convert the mesh to foam.

September 26, 2019, 05:43	scaling a mesh generated by gmsh	#1
mb.pejvak Senior Member Mehdi Babamehdi Join Date: Jan 2011 Posts: 158 Rep Power: 15	I want to scale a grid generated by gmsh to use in OpenFoam, but using Code: gmshToFoam -help does not show there is option for scaling while converting. I can modify the .geo file, but when I do it I got some error while converting, otherwise it converted without any error. Is there any way to do what I explained?

September 27, 2019, 13:38		#3
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,762 Rep Power: 66	By the way there is an OpenFOAM utility for scaling a mesh, e.g. Code: transformPoints -scale "(1 1 1)" You can use this after you convert the mesh to foam.

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September 26, 2019, 11:37		#2
mb.pejvak Senior Member Mehdi Babamehdi Join Date: Jan 2011 Posts: 158 Rep Power: 15	The problem arises from convering geo file to msh file with version 4. it should be done instead with version 2.