[soankerabhinay]

I am completely new to Openfoam! I did generate tetramesh using TETGEN and trying to convert that mesh into openfoam for heat transfer analysis.

I used tetgenTOFoam but it returns error as shown in the pic!

Does anyone help me with the step by step procedure to convert tetgen to openfoam? I dont see any information about tetgen to openFoam!

Also, can we generate tetramesh in the openfoam without importing it externally? if so, please share the information. Thank you!

[opedrofunk]

You need to have the basic structure of an OpenFOAM case set up to run tetgenToFoam, one which at a minimum contains:

$ tree
.
├── constant
│** └── polyMesh
└── system
    └── controlDict

Then it will work fine. FYI: If you're looking for a good free preprocessor for tetgen, check this:

http://www.cfd-online.com/Forums/ope...up-tetgen.html

Cheers,
Peter

[alexeym]

Hi,

@opedrofunk As you can see, soankerabhinay tried to convert mesh in one of tutorial cases, so there was basic file structure.

@soankerabhinay I think it is a space in the folder name that mess up the conversion. Try renaming "New folder" into "new-folder".

[opedrofunk]

@alexym Assuming that he correctly copied the complete case to the run directory, I would be inclined to agree with you - spaces in path/file names will throw an error (at least on linux/unix systems). However, this normally yields a different error than the one posted by soankerabhinay. For example:

$ cd New\ Folder/
$ tree
.
├── constant
│** └── polyMesh
└── system
    └── controlDict

$ tetgenToFoam ~/Desktop/test.1
/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 2.3.x-cf370883644e
Exec   : tetgenToFoam /Users/peter/Desktop/test.1
Date   : Feb 16 2015
Time   : 10:16:09
Host   : "peter"
PID    : 25646
fileName::stripInvalid() called for invalid fileName /Users/peter/OpenFOAM/peter-2.3.x/run/NewFolder
    For debug level (= 2) > 1 this is considered fatal
Abort trap: 6

It may be that windows behaves differently in this case (I don't have access to a windows box to test). Which is why I still suspect the case structure might be off.

Anyway, alexym is right - don't use spaces in file/directory names.

Regards,
Peter

[soankerabhinay]

@Alexeym, Thank you so much! As you said, space was the culprit! It worked when that was fixed. Thanks again.

@opedrofunk, Thank you for the swift response and also for the info about sketchup-tetgen interface, it is such an easy tetgen per-processor to work with