CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM

Fluent case to OpenFOAM conversion

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   September 9, 2010, 16:32
Default Fluent case to OpenFOAM conversion
New Member
Michael Elmore
Join Date: Sep 2010
Posts: 1
Rep Power: 0
umichsct is on a distinguished road
Hey guys, I'm new to OpenFOAM, and still relatively new to Fluent, so bear with me, but I'd appreciate any help I can get.

I'm trying to recreate a Fluent case in OpenFOAM. I've already converted the mesh (using fluent3DMestToFoam), but setting the boundary conditions and other settings isn't getting anywhere. I've also already scaled the mesh, and you can ignore the parallel partitioning; I'm pretty sure I can take care of that later. Here's the Fluent settings I was using before:

grid scale 0.001 0.001 0.001
report reference-values velocity 30
define models viscous ke-realizable yes
define models viscous near-wall-treatment non-equilibrium-wall-fn yes
define operating-conditions reference-pressure-location 14 2 2
define boundary-conditions zone-type car wall
define boundary-conditions zone-type ground wall
define boundary-conditions zone-type wall wall
define boundary-conditions zone-type inlet velocity-inlet
define boundary-conditions zone-type outlet pressure-outlet
define boundary-conditions wall ground yes motion-bc-moving yes shear-bc-noslip yes no 30 1 0 0 no no 0 no 0.5
define boundary-conditions wall car yes motion-bc-stationary yes shear-bc-noslip no 0 no 0.5
define boundary-conditions wall wall yes motion-bc-stationary yes shear-bc-spec-shear no 0 no 0.5 no 0 no 0 no 0
define boundary-conditions velocity-inlet inlet yes yes no 30 yes no 1 no 0 no 0 yes no 0.1 no 0.1
define boundary-conditions pressure-outlet outlet no 0 no yes yes no 0.1 no 0.1 no no
solve set under-relaxation pressure 0.1 mom 0.1 k 0.1 epsilon 0.1
solve set discretization-scheme pressure 12 mom 1 k 1 epsilon 1
solve set gradient-scheme yes
solve monitors residual plot yes
solve monitors residual check-convergence no no no no no no
solve initialize compute-defaults velocity-inlet inlet
parallel partition method principal-axes 4

I should probably note that this is for a car inside of a control volume, if you haven't guessed. OpenFOAM's more independent case filing has gotten me confused; I'm not quite sure which information goes where. In addition, I'm rather confused on OpenFOAM's terminology on boundary types, if anyone could clear those up - are there set boundaries like velocity inlets similar to Fluent?

I know I'm asking a lot, but anything you've got is well appreciated.
umichsct is offline   Reply With Quote

Old   September 10, 2010, 13:56
Senior Member
santiagomarquezd's Avatar
Santiago Marquez Damian
Join Date: Aug 2009
Location: Santa Fe, Santa Fe, Argentina
Posts: 452
Rep Power: 23
santiagomarquezd will become famous soon enough
Check the tutorials in User Guide.

Research Scientist
Research Center for Computational Methods (CIMEC) - CONICET/UNL
Tel: 54-342-4511594 Int. 7032
Colectora Ruta Nac. 168 / Paraje El Pozo
(3000) Santa Fe - Argentina.
santiagomarquezd is offline   Reply With Quote

Old   December 15, 2010, 13:12
New Member
rock.senthilkumar's Avatar
Join Date: Sep 2010
Location: Ranchi, India
Posts: 20
Rep Power: 15
rock.senthilkumar is on a distinguished road
Hai umichsct,
I am familiar with FLUENT but not openFOAM. So I am not sure about this just convert using FluentMeshToFoam instead of Fluent3DMeshToFoam for further details :- . Remember before that check your conversion steps for Fluent3DMeshToFoam with :- & .After this try also your problem exists, sorry.

Last edited by rock.senthilkumar; December 15, 2010 at 14:43.
rock.senthilkumar is offline   Reply With Quote

Old   April 20, 2011, 16:36
Senior Member
maysmech's Avatar
Join Date: Jan 2010
Posts: 347
Blog Entries: 2
Rep Power: 17
maysmech is on a distinguished road
Hi Foamers,

Is it possible to use a Fluent case & data as initial value for OpenFOAM?

I need to convert not only the mesh but also cells fields value.
maysmech is offline   Reply With Quote

Old   April 23, 2011, 14:59
Senior Member
maysmech's Avatar
Join Date: Jan 2010
Posts: 347
Blog Entries: 2
Rep Power: 17
maysmech is on a distinguished road
Is it possible to import CGNS format to OpenFOAM 1.7?
maysmech is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
[Salome] mesh conversion Salome --> OpenFoam vaina74 OpenFOAM Meshing & Mesh Conversion 42 March 4, 2022 20:41
Comparison of axisymmetric case, Starccm+ and OpenFOAM linnemann OpenFOAM Running, Solving & CFD 12 June 16, 2011 05:43
Creating a new OpenFOAM case Wesley OpenFOAM 26 May 3, 2011 12:26
Which Linux Distro for OpenFOAM and Fluent jason.ryon OpenFOAM 9 December 8, 2010 18:31
Fluent elbow in Openfoam chemeng OpenFOAM 1 January 21, 2010 03:52

All times are GMT -4. The time now is 06:44.