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antopnieta January 14, 2008 15:18

I'm new with OpenFOAM... and h
 
I'm new with OpenFOAM... and have this error when convert a Fluent mesh to Open Foam...

cornejo@bachasaurus:~> fluentMeshToFoam /home/pcornejo/OpenFoam/pcornejo-1.4.1/run/tutorials/icoFoam/ bola2 /home/pcornejo/Desktop/bola.txt
/*---------------------------------------------------------------------------*\
| ========= | |
| \ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \ / O peration | Version: 1.4.1 |
| \ / A nd | Web: http://www.openfoam.org |
| \/ M anipulation | |
\*---------------------------------------------------------------------------*/

Exec : fluentMeshToFoam /home/pcornejo/OpenFoam/pcornejo-1.4.1/run/tutorials/icoFoam/ bola2 /home/pcornejo/Desktop/bola.txt
Date : Jan 14 2008
Time : 18:13:03
Host : bachasaurus
PID : 19386
Root : /home/pcornejo/OpenFoam/pcornejo-1.4.1/run/tutorials/icoFoam/
Case : bola2
Nprocs : 1
Create time



--> FOAM FATAL IO ERROR : cannot open file

file: /home/pcornejo/OpenFoam/pcornejo-1.4.1/run/tutorials/icoFoam//bola2/system/contr olDict at line 0.

From function regIOobject::readStream(const word&)
in file db/regIOobject/regIOobjectRead.C at line 66.

FOAM exiting



-----------------
i don't understand why.... what is wrong??

Please help me!!

Thank to all

nsp82 January 15, 2008 00:09

Hi bola, Before you run flu
 
Hi bola,

Before you run fluentMeshToFoam, make sure that you have a controlDict file in your <root>/<case>/system/ folder. copy thye control dict from one of the tutorial cases.

Also try running a few example cases first.

antopnieta January 15, 2008 14:53

Thank!
 
Thank!

danielle February 12, 2008 11:20

Hi, I need to know if my mesh
 
Hi,
I need to know if my mesh is correct (converted by fluent3DMeshToFoam).
With Fluent CFD code I get the correct comportment (the same mesh), but with openFoam the courant number increase from 1e-3 to one after 100 iterations, and I get strange comportment.
I use 4 non-orthogonal correctors.
Thank you a lot for help

a check mesh gives me:


Time = constant

Mesh stats
points: 314704
edges: 1088715
faces: 1277556
internal faces: 1211202
cells: 492171
boundary patches: 13
point zones: 0
face zones: 0
cell zones: 2

Number of cells of each type:
hexahedra: 257595
prisms: 0
wedges: 0
pyramids: 4884
tet wedges: 0
tetrahedra: 229692
polyhedra: 0

Checking topology...
Boundary definition OK.
Point usage OK.
Upper triangular ordering OK.
Topological cell zip-up check OK.
Face vertices OK.
Number of identical duplicate faces (baffle faces): 11380
Face-face connectivity OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces ...
Patch Faces Points Surface
wall_cylin_int_Pied 22752 10349 multiply connected surface (shared edge)
wall_cylin_ext_G 8448 8624 ok (not multiply connected)
wall_capt_inlet_G 960 980 ok (not multiply connected)
inlet3 142 76 ok (not multiply connected)
inlet2 140 75 ok (not multiply connected)
outlet 25 33 ok (not multiply connected)
Wall_top 2653 2755 ok (not multiply connected)
inlet1 78 43 ok (not multiply connected)
wall_buttom 2669 1406 ok (not multiply connected)
wal_capt_inlet_F 873 685 ok (not multiply connected)
wall_cylin_inter 809 420 multiply connected surface (shared edge)
wall_cylin_ext_F 24925 19277 ok (not multiply connected)
wall_disc_inlet 1880 949 ok (not multiply connected)
<<Writing 10349 conflicting points to set nonManifoldPoints

Checking geometry...
Domain bounding box: (-0.1399975542 -0.1399975132 -8.615330671e-16) (0.1399975409 0.1399974832 0.99)
Boundary openness (-1.08376269439e-17 2.89040432417e-17 -1.39722202889e-16) OK.
Max cell openness = 1.66037625622e-15 OK.
Max aspect ratio = 21.4330745345 OK.
Minumum face area = 1.22452202869e-07. Maximum face area = 8.99152813257e-05. Face area magnitudes OK.
Min volume = 2.74672353669e-11. Max volume = 2.5560068467e-07. Total volume = 0.0347227605366. Cell volumes OK.
Mesh non-orthogonality Max: 84.9996185403 average: 12.6589058903
*Number of severely non-orthogonal faces: 49.
Non-orthogonality check OK.
<<Writing 49 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
Max skewness = 1.33507309587 OK.
Min/max edge length = 0.00021842066229 0.0171267937215 OK.
All angles in faces OK.
Face flatness (1 = flat, 0 = butterfly) : average = 0.999999944124 min = 0.995345751937
All face flatness OK.

Mesh OK.

End


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