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Forum: OpenFOAM Running, Solving & CFD

January 5, 2011, 06:39

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Try to have no more non-orthogonale faces ;-)

Try to have no more non-orthogonale faces ;-)

Forum: OpenFOAM Running, Solving & CFD

July 28, 2009, 07:40

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Hi Chiven I'm not a specialist but I think...

Hi Chiven

I'm not a specialist but I think that OpenFoam can compute complicated cases. (see the examples on the website) but you need a very good mesh.

Have you compared the areas where you...

Forum: OpenFOAM Running, Solving & CFD

July 28, 2009, 06:02

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Your mesh seems good. Have you post-processed...

Your mesh seems good. Have you post-processed your case to see the zone where the velocity is weirb ?
I don't use OpenFOAM for several months so I don't remember very good all the tricks I...

Forum: OpenFOAM Running, Solving & CFD

July 28, 2009, 02:36

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Hi Chiven. "Ok" by checkMesh seems to be...

Hi Chiven.

"Ok" by checkMesh seems to be not enough. Have you non-orthogonal faces ?

Forum: OpenFOAM Running, Solving & CFD

April 24, 2009, 09:06

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Checking two options in Gmesh I get a good mesh :...

Checking two options in Gmesh I get a good mesh :

Tools / Options / Mesh / Advanced
- Optimize quality of tetraedra
- Optimize quality of tetraedra with NetGen

Forum: OpenFOAM Running, Solving & CFD

April 24, 2009, 05:33

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

Hi all I just tried my case with a mesh...

Hi all

I just tried my case with a mesh generated by snappyHexMesh from the same STL sphere. I have now "good" results.
So the problem come from the mesh.
Maybe the topic should be moved to the...

Forum: OpenFOAM Running, Solving & CFD

April 23, 2009, 10:50

Replies: 12

potentialFoam around a sphere ; mesh by Gmsh

Views: 4,768

Posted By eliam

potentialFoam around a sphere ; mesh by Gmsh

Hi all

I'm new in OpenFOAM. I use it for an automotive application but I want to begin with easier cases.

I'm trying to study the flow around a sphere with potentialFoam (as a begin).
I made...

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