CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums

Search Results

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

Page 1 of 2 1 2
Showing results 1 to 25 of 29
Search took 0.00 seconds. Search: Posts Made By: -mAx-
Forum: OpenFOAM Meshing & Mesh Conversion August 28, 2013, 00:37
Replies: 90
Views: 22,533
Posted By -mAx-
I meant pictures to see how you mesh looks like,...

I meant pictures to see how you mesh looks like, etc...
I would also try to extrude it for having 3d domain, and then import it in OF for excluding an issue because of 2d
Forum: OpenFOAM Meshing & Mesh Conversion August 27, 2013, 04:32
Replies: 90
Views: 22,533
Posted By -mAx-
post pictures of your mesh

post pictures of your mesh
Forum: OpenFOAM Meshing & Mesh Conversion August 27, 2013, 00:38
Replies: 90
Views: 22,533
Posted By -mAx-
can you post your controlDict file and also all...

can you post your controlDict file and also all the error message you get?
Forum: OpenFOAM Meshing & Mesh Conversion August 26, 2013, 04:49
Replies: 90
Views: 22,533
Posted By -mAx-
Ok, I didn't know

Ok, I didn't know
Forum: OpenFOAM Meshing & Mesh Conversion August 26, 2013, 03:54
Replies: 90
Views: 22,533
Posted By -mAx-
the second one. As I wrote, OF cannot compute...

the second one.
As I wrote, OF cannot compute "2d". So you need to give a thickness to your 2d model.
Just extrude your surfaces, and mesh volumes.
Then follow the tutorial for knowing what kind...
Forum: OpenFOAM Meshing & Mesh Conversion August 26, 2013, 00:50
Replies: 90
Views: 22,533
Posted By -mAx-
you cannot work with 2d in OF. In Gambit...

you cannot work with 2d in OF.
In Gambit extrude your 2d geometry, and export the 3d mesh in OF with fluent3DMeshToFoam
For the BC, check for instance airFoil2D (incompressible/simpleFoam)
Forum: OpenFOAM Meshing & Mesh Conversion May 3, 2013, 08:44
Replies: 90
Views: 22,533
Posted By -mAx-
try fluent3DMeshToFoam flat.msh

try fluent3DMeshToFoam flat.msh
Forum: OpenFOAM Meshing & Mesh Conversion January 31, 2013, 06:34
Replies: 90
Views: 22,533
Posted By -mAx-
Once your mesh is converted with fluentMeshToFoam...

Once your mesh is converted with fluentMeshToFoam or fluent3DMeshToFoam, then your geometry is ready.
What do you want to do with blockMesh?
Forum: OpenFOAM Meshing & Mesh Conversion November 14, 2012, 00:41
Replies: 90
Views: 22,533
Posted By -mAx-
how many cells?

how many cells?
Forum: OpenFOAM Meshing & Mesh Conversion November 13, 2012, 09:57
Replies: 90
Views: 22,533
Posted By -mAx-
:rolleyes: How big is your mesh, and how many...

:rolleyes:
How big is your mesh, and how many ram-memory do you have?
Forum: OpenFOAM Meshing & Mesh Conversion October 27, 2012, 12:01
Replies: 90
Views: 22,533
Posted By -mAx-
no blockMesh is just another way for meshing. ...

no blockMesh is just another way for meshing.
In your case you can go and define your boundary conditions
Don't forget to scale your problem with transformPoints
Also checkMesh and renumberMesh
;)
Forum: OpenFOAM Meshing & Mesh Conversion October 23, 2012, 01:21
Replies: 90
Views: 22,533
Posted By -mAx-
you are calling fluentMeshToFoam from...

you are calling fluentMeshToFoam from your_case_directory/constant/polyMesh instead of your_case_directory.
Move also your *.msh file into your_case_directory (not in /polyMesh)
Forum: OpenFOAM Meshing & Mesh Conversion August 29, 2012, 08:00
Replies: 90
Views: 22,533
Posted By -mAx-
no only the mesh is passed to OF. If you are...

no only the mesh is passed to OF.
If you are able to export your mesh as .msh file for instance, then you may be able to convert the mesh file into OF using fluent3DMeshToFoam
Forum: OpenFOAM Meshing & Mesh Conversion January 4, 2012, 01:32
Replies: 90
Views: 22,533
Posted By -mAx-
no idea this time

no idea this time
Forum: OpenFOAM Meshing & Mesh Conversion November 21, 2011, 12:55
Replies: 90
Views: 22,533
Posted By -mAx-
check CFL conditions in theory

check CFL conditions in theory
Forum: OpenFOAM Meshing & Mesh Conversion November 19, 2011, 03:08
Replies: 90
Views: 22,533
Posted By -mAx-
yes but you forgot "..." transformPoints -scale...

yes but you forgot "..."
transformPoints -scale "(100 100 100)"
Forum: OpenFOAM Meshing & Mesh Conversion October 26, 2011, 04:27
Replies: 90
Views: 22,533
Posted By -mAx-
From your pictures it sounds you only have one...

From your pictures it sounds you only have one volume.
Better do some splits to make hexa meshing easier:
*do some splits like I did (you can see where are surfaces neede for splits >> pink edges)....
Forum: OpenFOAM Meshing & Mesh Conversion October 25, 2011, 07:36
Replies: 90
Views: 22,533
Posted By -mAx-
post pictures

post pictures
Forum: OpenFOAM Meshing & Mesh Conversion October 25, 2011, 07:06
Replies: 90
Views: 22,533
Posted By -mAx-
After merging the volumes, you need to remesh the...

After merging the volumes, you need to remesh the new volume.
Then you can use the filter of any volume operation, and select Unmeshed. And finally select all. If any volume goes right, then this...
Forum: OpenFOAM Meshing & Mesh Conversion October 25, 2011, 00:47
Replies: 90
Views: 22,533
Posted By -mAx-
check if you have a surface called "wall". Gambit...

check if you have a surface called "wall". Gambit puts all surfaces without BC in a "wall" set, and those surfaces are defined as wall.
Then display the surface "wall" and check if they match the...
Forum: OpenFOAM Meshing & Mesh Conversion October 21, 2011, 09:49
Replies: 90
Views: 22,533
Posted By -mAx-
IN paraview, basically available are boundary...

IN paraview, basically available are boundary surfaces and fluid-domain.
By openingany boundary surface, you can display any variable on this surface.
If you want to see something in your model,...
Forum: OpenFOAM Meshing & Mesh Conversion October 17, 2011, 05:28
Replies: 90
Views: 22,533
Posted By -mAx-
in the bounding box, the (16 16 4) agrees what...

in the bounding box, the (16 16 4) agrees what you mentionned:"the lenght of the tube is 3cm and the lenght of the square is 1 cm" (3+1)
That means you created your geometry in Gambit with cm-scale...
Forum: OpenFOAM Meshing & Mesh Conversion October 17, 2011, 04:02
Replies: 90
Views: 22,533
Posted By -mAx-
Basically you need to get your dt from your...

Basically you need to get your dt from your maximal expected velocity on your smallest cell, and then take factor 0.5 >> dt # 0.5 x min-cell/max-U

But in your case, did you scale your domain?
In...
Forum: OpenFOAM Meshing & Mesh Conversion October 17, 2011, 01:25
Replies: 90
Views: 22,533
Posted By -mAx-
Courant Number (Co) is your problem. How did...

Courant Number (Co) is your problem.
How did you define your dt?
Forum: OpenFOAM Meshing & Mesh Conversion October 10, 2011, 01:06
Replies: 90
Views: 22,533
Posted By -mAx-
"time step continuity errors " aren't error as...

"time step continuity errors " aren't error as you think.
>> http://www.openfoam.com/docs/user/monitoring-jobs.php

Very very coarse approach to numerics: exact mathematics equation A=B will be...
Showing results 1 to 25 of 29
Page 1 of 2 1 2

 
Forum Jump

All times are GMT -4. The time now is 00:30.

Contact Us - CFD Online - Privacy Statement - Top