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Forum: OpenFOAM Meshing & Mesh Conversion

July 25, 2013, 08:11

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Have you checked if your stl file was precise...

Have you checked if your stl file was precise enough ?
As I said on my previous message, my stl file was already extremly wavy.

Forum: OpenFOAM Meshing & Mesh Conversion

April 29, 2013, 08:47

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi ! I looked for a solution with salome Meca...

Hi !
I looked for a solution with salome Meca and many people say it is impossible to change the precision of the Stl file generation in Salome.
I use instead AutoCAD in which it is easy to control...

Forum: OpenFOAM Meshing & Mesh Conversion

April 23, 2013, 12:45

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi, Thanks to your answer I saw that a problem...

Hi,
Thanks to your answer I saw that a problem comes from the STL surface itself.
I generated a surface with splines and then extruded it with salome Meca.
At this moment, Salome changed the...

Forum: OpenFOAM Meshing & Mesh Conversion

April 23, 2013, 03:38

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi, sure you can see the mesh ! I...

Hi,

sure you can see the mesh !

I realized last night that I did not recheck my Yplus when I changed the layer controls. I replaced the
finalLayerThickness 0.5;
by
finalLayerThickness 1;
...

Forum: OpenFOAM Meshing & Mesh Conversion

April 22, 2013, 11:47

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi FOAMers, as I promised, I tested the new...

Hi FOAMers,

as I promised, I tested the new set of parameters proposed by JR22 for the layer.
It did not really change the problem as I still see some jump of pressure of the angle parts of the...

Forum: OpenFOAM Meshing & Mesh Conversion

April 20, 2013, 03:10

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Thanks for the answer. Actually I tried to...

Thanks for the answer.
Actually I tried to change the layer mesh in many ways but it did not have any effect on the problem I showed above. I think the fact that my surface snapping is not entirely...

Forum: OpenFOAM Meshing & Mesh Conversion

April 19, 2013, 08:26

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi I just tried a new simulation with the new...

Hi
I just tried a new simulation with the new geometry and you can find enclosed what I see for the pressure field.

The quality of the snapping seems to be very important, for the fields near the...

Forum: OpenFOAM Meshing & Mesh Conversion

April 19, 2013, 06:06

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Hi David, Thanks for the advices it helped me a...

Hi David,
Thanks for the advices it helped me a lot.
Increasing the solve iter from 30 to 1000 did not change anything first, I still had this "smooth castellated" mesh.

Then, I upgraded my...

Forum: OpenFOAM Meshing & Mesh Conversion

April 18, 2013, 06:15

Replies: 16

[snappyHexMesh] Snap Precision to a STL Surface

Views: 5,701

Posted By malaboss

Snap Precision to a STL Surface

Hi FOAMers !
I am now studying an airfoil and I would like to create the mesh around it with snappyHexMesh. When I ran some simulations, it gave me a high drag.
Looking at the profile more...

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