From ansys meshing to openfoam
 

I have created a 3d geometry with gambit and meshing with ansys meshing and i exported as .msh

when i type fluent3DMeshToFoam singleserpantinefine.msh


/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.1.0-0bc225064152
Exec : fluent3DMeshToFoam singleserpantinefine.msh
Date : Oct 02 2012
Time : 12:30:08
Host : "danath-desktop"
PID : 1915
Case : /home/danath/OpenFOAM/danath-2.1.0/run/tutorials/singleserpantine
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Dimension of grid: 3
Number of points: 9835676
Number of faces: 28616972
Number of cells: 9401296
--> FOAM Warning : Found unknown block of type: "3010"
on line 14


--> FOAM FATAL ERROR:
Do not understand characters: �
on line 15

From function fluentMeshToFoam::lexer
in file fluent3DMeshToFoam.L at line 747.

FOAM exiting

where is the problem ?


http://albertopassalacqua.com/?p=885 is it safe ?

Greetings Evangelos,

The fix that is presented in http://albertopassalacqua.com/?p=885 is meant to be used as follows:

1. Edit the file "~/.bashrc" and add to the end of the file a new line with:
   
   Code:

   ---

   export AWP_WRITE_FLUENT_MESH_ASCII=1

   ---

2. Start a new terminal.
3. Launch Workbench directly from the new terminal.
   • If you are only able to launch the Workbench application from the menu, then you might need to logout and then log back in.
4. Export the mesh on Workbench again to ".msh".
5. Now you can go back to the terminal and convert the ".msh" file to OpenFOAM.

Best regards,
Bruno

Hi,

I would like to trythis fix to see if I can succesfully import my Ansys mesh. However I am running Ansys Workbench in Windows, how can I specify that I would like the .msh-file in ASCII-format?

Regards,

Jone

Greetings Jone and welcome to forum!

Search for "How To Manage Environment Variables in Windows". Example: http://support.microsoft.com/kb/310519

Best regards,
Bruno

Hi, Jone,

Depending on which ANSYS version you are using. If you are using V14, then, you do not have to set the ascii = 1 throught windows variable.

In Workbench Meshing, seclect "Tools", then, click "Export" under Meshing. Set ANSYS Fluent format to "Ascii".

After this, you can export the mesh and select Fluent *.msh format.

Pei-Ying

Thank you very much both of you! I will check this out as soon as I get my new installation running.

Have a nice day!

Hi,

I`m trying to export a mesh file from Ansys to OpenFOAM but received this error message: -

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.1.1-221db2718bbb
Exec : fluentMeshToFoam surface3.msh
Date : Aug 24 2016
Time : 12:22:10
Host : "ck-VirtualBox"
PID : 3632
Case : /home/ck/Desktop/Test/surface
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

fileName::stripInvalid() called for invalid fileName surface3.STEP
For debug level (= 2) > 1 this is considered fatal
Aborted (core dumped)


Can anyone help me on that? I am using Ansys version 16.2 and i have followed the treat to change the file format to ASCII yet the problem doesn`t resolved.

I have no idea on the following statement: "stripInvalid() called for invalid fileName surface3.STEP" . I placed this geometry file in the same folder with surface3.msh. If i removed this file from the folder, i get an error message :-

--> FOAM FATAL IO ERROR:
cannot find file

file: /home/ck/Desktop/Test/surface/system/controlDict at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 73.

FOAM exiting


Thanks.

Plz See this:

https://www.youtube.com/watch?v=f9-GDWLKixg