[Scram_1]

Hey Zinedine,
Thanks for your quick reply!
This is what I get when I do checkMesh

Create polyMesh for time = 0

Time = 0

Mesh stats
points: 167512
internal points: 0
faces: 331555
internal faces: 164045
cells: 82600
faces per cell: 6
boundary patches: 8
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 82600
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 0

Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology
INLET_TOP 59 120 ok (non-closed singly connected)
INLET_BOTTOM 59 120 ok (non-closed singly connected)
OUTLET 118 238 ok (non-closed singly connected)
WALL_STRAIGHT_TOP 324 650 ok (non-closed singly connected)
WALL_STRAIGHT_BOTTOM324 650 ok (non-closed singly connected)
WALL_WAVY_BOTTOM 713 1430 ok (non-closed singly connected)
WALL_WAVY_TOP 713 1430 ok (non-closed singly connected)
frontAndBackPlanes 165200 167512 ok (non-closed singly connected)

Checking geometry...
Overall domain bounding box (1.688336 -3.224465 -0.1007603) (9.43028 3.224465 0.1007603)
Mesh (non-empty, non-wedge) directions (1 1 0)
Mesh (non-empty) directions (1 1 0)
All edges aligned with or perpendicular to non-empty directions.
Boundary openness (3.079742e-18 -5.752289e-17 -6.754386e-19) OK.
Max cell openness = 2.319659e-16 OK.
Max aspect ratio = 4.989274 OK.
Minimum face area = 4.319345e-05. Maximum face area = 0.00416419. Face area magnitudes OK.
Min volume = 8.704371e-06. Max volume = 3.492038e-05. Total volume = 1.330074. Cell volumes OK.
Mesh non-orthogonality Max: 33.49753 average: 9.974007
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 0.4789947 OK.
Coupled point location match (average 0) OK.

Mesh OK.

End

I want to know what are units of my mesh. This is the bounding box dimensions of checkMesh Overall domain bounding box (1.688336 -3.224465 -0.1007603) (9.43028 3.224465 0.1007603). Now the numbers here are in m or mm? The geometry that I had created in solidWorks was initially in mm. I'm asking this because my boundary conditions will change accordingly.
Thanks!!
Ram

[Zinedine]

Hi Ram
As far as I understand the output is in m.
Regards

Zinedine

[Zinedine]

Hi again
Have you visualised your mesh using paraFoam for a quick check
just to be sure.

Regards

Z.

[Scram_1]

I have checked in paraview as well...The numbers are correct. But I'm not sure about the units...It is showing 9.43 but whether it is mm or m I dont know

[Zinedine]

Hi agsin
I guess it is in m

Regards

Z.

[vnarayana]

i am validating one paper, i asked my friend to send mesh from ansys. its a 2D geometry. fluentMeshToFoam temp.msh i got the following

narayana@narayana-Lenovo-G50-80:~$ cd /home/narayana/cavity
narayana@narayana-Lenovo-G50-80:~/cavity$ fluentMeshToFoam temp.msh
/*---------------------------------------------------------------------------*\\
| ========= | |
| \\\\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\\\ / O peration | Version: 2.4.0 |
| \\\\ / A nd | Web: www.OpenFOAM.org |
| \\\\/ M anipulation | |
\\*---------------------------------------------------------------------------*/
Build : 2.4.0-f0842aea0e77
Exec : fluentMeshToFoam temp.msh
Date : Jun 26 2016
Time : 21:23:00
Host : "narayana-Lenovo-G50-80"
PID : 3078
Case : /home/narayana/cavity
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

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



FINISHED LEXING


dimension of grid: 0
Creating shapes for 3-D cells
Building patch-less mesh...done.

for a trial i used icoFoam. my solver is buoyantBoussinesqSimpleFoam.
in the constant folder i found boundary file that consists of only zero value.
what should i do ?

[Bharath Bhushan]

hi friends,


I am trying to convert .msh file to openfoam using both fluentMeshToFoam and fluent3DMeshToFoam. But I am getting an error in both the cases.

fluentMeshToFoam - Found end of section in unknown
,Embedded blocks in comment or unknown:

fluent3DMeshToFoam - Do not understand the characters:
on line 1



please can anybody let me know how to solve this


Thank you

[kera]

is your ".msh" mesh file in binary or ascii format?

Originally Posted by Bharath Bhushan

hi friends,


I am trying to convert .msh file to openfoam using both fluentMeshToFoam and fluent3DMeshToFoam. But I am getting an error in both the cases.

fluentMeshToFoam - Found end of section in unknown
,Embedded blocks in comment or unknown:

fluent3DMeshToFoam - Do not understand the characters:
on line 1



please can anybody let me know how to solve this


Thank you

[syn1993530]

syn@syn-Lenovo:~$ fe32
syn@syn-Lenovo:~$ cd /home/syn/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system/
syn@syn-Lenovo:~/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system$ fluentMeshToFoam 1.msh
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | foam-extend: Open Source CFD |
| \\ / O peration | Version: 3.2 |
| \\ / A nd | Web: http://www.foam-extend.org |
| \\/ M anipulation | For copyright notice see file Copyright |
\*---------------------------------------------------------------------------*/
Build : 3.2-334ba0562a2c
Exec : fluentMeshToFoam 1.msh
Date : Mar 29 2017
Time : 16:31:08
Host : syn-Lenovo
PID : 3648
CtrlDict : "/home/syn/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system/system/controlDict"
Case : /home/syn/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

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



--> FOAM FATAL IO ERROR:
cannot open file

file: /home/syn/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system/system/controlDict at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 61.

FOAM exiting

syn@syn-Lenovo:~/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system$



can you help me ?
Yining Song

[Bharath Bhushan]

Originally Posted by kera

is your ".msh" mesh file in binary or ascii format?

thanks for the quick reply kera,


file is in binary

[kera]

Originally Posted by Bharath Bhushan

file is in binary

That seems to be the problem, as far as I know your ".msh" file should be in ASCII format.

Originally Posted by syn1993530

cannot open file

file: /home/syn/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole/system/system/controlDict at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 61.

FOAM exiting

Execute your command

fluentMeshToFoam 1.msh

from the base directory i.e., from:

syn@syn-Lenovo:~/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole$

Regards,
Ricky

[Bharath Bhushan]

Originally Posted by kera

That seems to be the problem, as far as I know your ".msh" file should be in ASCII format.



Execute your command

fluentMeshToFoam 1.msh

from the base directory i.e., from:

syn@syn-Lenovo:~/solids4foamphilip/tutorials/nonLinGeomSolidFoam/plateHole$

Regards,
Ricky

oh cool, then will try it. Thank you kera.

Yining Song syn1993530, I also experienced the same problem like you. One should be in the base directory to run the solver, not in any folder like 0 or constant or system.