[Ahadi]

Hello everyone, I am really stuck with this problem for couple of days now and hope that you can help me . I have created a simple T-shape pipe geometry and created a mesh for it with Salome. Now, I am trying to convert this mesh to openFoam (ideasunvtofoam) and I am having a segmentation fault. Could you please try to convert the mesh and see if it works with you so at least I know where the error is coming from. The files for the Salome geometry and the mesh files can be seen here

https://www.dropbox.com/sh/3wd70o7w9...xJm8I0IoGhSdXa

Regards and thanks for you help

[Ahadi]

UPDATE: I have recreated the geometry step by step and exported the corresponding mesh. It turns out that the problem lies with the patches creation and export. What I did as explained in one of the tutorials is that I created the geometry and then used explode to get the faces that constitute the inlet and outlet patches. Afterwards, these faces were grouped under patches. Then these patches in the geometry were used to create the group patches in the mesh which then exported along in the mesh file. Is this the right way to construct and export the patches or there is another way that works?? your help guys is really appreciated thanks

[gkarlsen]

Originally Posted by Ahadi

UPDATE: I have recreated the geometry step by step and exported the corresponding mesh. It turns out that the problem lies with the patches creation and export. What I did as explained in one of the tutorials is that I created the geometry and then used explode to get the faces that constitute the inlet and outlet patches. Afterwards, these faces were grouped under patches. Then these patches in the geometry were used to create the group patches in the mesh which then exported along in the mesh file. Is this the right way to construct and export the patches or there is another way that works?? your help guys is really appreciated thanks

No expert at this.. but that is not what I do I create a single solid, and add groups of faces to it in the mesh module. You can find an example of this method in the Y-shaped pipe tutorial found here:

http://www.caelinux.org/wiki/index.p...ELinux_2007.29

[wouter]

Ahadi,
I also am not an expert. My strategy is to use the geom module to create STL files of my patches and with HELYX-OS I create with snappyHexMesh my mesh. I export the polyMesh directory to my case and change the boundaries, because HELYX-OS does not have my solvers, otherwise you can HELYX-OS to run your case.
But I noticed in your mesh that there is no internal mesh and openFOAM needs that. So the same as gkarlsen said.

Hope this helps
Wouter

[gkarlsen]

Originally Posted by wouter

Ahadi,
I also am not an expert. My strategy is to use the geom module to create STL files of my patches and with HELYX-OS I create with snappyHexMesh my mesh. I export the polyMesh directory to my case and change the boundaries, because HELYX-OS does not have my solvers, otherwise you can HELYX-OS to run your case.
But I noticed in your mesh that there is no internal mesh and openFOAM needs that. So the same as gkarlsen said.

Hope this helps
Wouter

This is actually what I do as well, so I support Wouter's recommendation. I find Helyx-os to be real newbie friendly, and with it I can make much better hex-meshes refined in the right locations than I ever could manage directly from Salome. I work mainly with interFoam, which is supported by the Helyx-os GUI. That obviously makes it even better

My answer above is only relevant if you actually want to use Salome meshing for your geometry.

Geir

[dzi]

Hi,
FYI I am also struggeling with snappy hex mesh on multi region and just started a new thread.
http://www.cfd-online.com/Forums/ope...ns-salome.html

regards dirk