[Other] [Request] OpenFOAM mesh to 2D Ansys fluent mesh

anon_q · February 14, 2019, 10:28

The foamMeshToFluent utility can convert only 3D meshes to Ansys Fluent Mesh. Is there any tool that generate 2D Fluent Mesh from OpenFOAM?

As you know, in OpenFOAM if we want to do a 2D simulation we create a 3D mesh with at least one cell thick in the third dimension and specifying it as empty Boundary condition.

IMO, it is more natural to have a tool or at least adding some options to the existing foamToFluentMesh utility to convert these 2D meshes to 2D mesh for Ansys Fluent.

Is it is easy to program this tool?

makaveli_lcf · February 15, 2019, 04:42

Hi Evren!

You are right since OpenFOAM works with 3D meshes by default and one does not have to treat 2D or axis-symmetric meshes in some special way, no modifications come to your equations. There are too possibilities:

Write a request at git repository for a feature to OF developers.
Compare format of the 3D and 2D ASCII meshes for FLUENT and write some utility to cut OF-to-FLuent mesh from 3D to 3D.

Cheers,
Alexander

anon_q · February 16, 2019, 15:59

Thank you for your reply dear Alexander,
Yes I tried to go with the second option but it will take some time. here is an example of Fluent 2D ascii mesh.
Regarding the first option, I am pretty sure they will never accept the feature request.

makaveli_lcf · February 19, 2019, 03:23

hi Evren) it depends to which team you talk, ESI are quite open. I will have a look a bit later what can be done.

anon_q · February 19, 2019, 16:45

Thank you for your interest

hoyos98 · January 14, 2022, 13:25

Hello, I'd like to know if you found a solution. Thanks!

Desimuser1 · July 3, 2023, 06:24

use fluent3DMeshToFoam myMesh.msh

February 14, 2019, 10:28	[Request] OpenFOAM mesh to 2D Ansys fluent mesh	#1
anon_q Senior Member Join Date: Mar 2018 Posts: 115 Rep Power: 8	The foamMeshToFluent utility can convert only 3D meshes to Ansys Fluent Mesh. Is there any tool that generate 2D Fluent Mesh from OpenFOAM? As you know, in OpenFOAM if we want to do a 2D simulation we create a 3D mesh with at least one cell thick in the third dimension and specifying it as empty Boundary condition. IMO, it is more natural to have a tool or at least adding some options to the existing foamToFluentMesh utility to convert these 2D meshes to 2D mesh for Ansys Fluent. Is it is easy to program this tool? Last edited by anon_q; February 16, 2019 at 15:56.

February 15, 2019, 04:42		#2
makaveli_lcf Senior Member Dr. Alexander Vakhrushev Join Date: Mar 2009 Posts: 256 Blog Entries: 1 Rep Power: 19	Hi Evren! You are right since OpenFOAM works with 3D meshes by default and one does not have to treat 2D or axis-symmetric meshes in some special way, no modifications come to your equations. There are too possibilities: Write a request at git repository for a feature to OF developers. Compare format of the 3D and 2D ASCII meshes for FLUENT and write some utility to cut OF-to-FLuent mesh from 3D to 3D. Cheers, Alexander __________________ Best regards, Dr. Alexander VAKHRUSHEV Christian Doppler Laboratory for "Metallurgical Applications of Magnetohydrodynamics" Simulation and Modelling of Metallurgical Processes Department of Metallurgy University of Leoben http://smmp.unileoben.ac.at

February 19, 2019, 03:23		#4
makaveli_lcf Senior Member Dr. Alexander Vakhrushev Join Date: Mar 2009 Posts: 256 Blog Entries: 1 Rep Power: 19	hi Evren) it depends to which team you talk, ESI are quite open. I will have a look a bit later what can be done. __________________ Best regards, Dr. Alexander VAKHRUSHEV Christian Doppler Laboratory for "Metallurgical Applications of Magnetohydrodynamics" Simulation and Modelling of Metallurgical Processes Department of Metallurgy University of Leoben http://smmp.unileoben.ac.at

January 14, 2022, 13:25	Same issue, did you solve it?	#6
hoyos98 New Member jose daniel Join Date: Apr 2020 Posts: 26 Rep Power: 6	Hello, I'd like to know if you found a solution. Thanks! thedal likes this.

July 3, 2023, 06:24	fluent3DMeshToFoam	#7
Desimuser1 Member desimuser1 Join Date: Mar 2023 Posts: 35 Rep Power: 3	use fluent3DMeshToFoam myMesh.msh

February 16, 2019, 15:59		#3
anon_q Senior Member Join Date: Mar 2018 Posts: 115 Rep Power: 8	Thank you for your reply dear Alexander, Yes I tried to go with the second option but it will take some time. here is an example of Fluent 2D ascii mesh. Regarding the first option, I am pretty sure they will never accept the feature request.

February 19, 2019, 16:45		#5
anon_q Senior Member Join Date: Mar 2018 Posts: 115 Rep Power: 8	Thank you for your interest

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