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-   -   snappyHexMesh with zero Thickness surface imported from a Geometry (http://www.cfd-online.com/Forums/openfoam-meshing/106646-snappyhexmesh-zero-thickness-surface-imported-geometry.html)

hfs September 4, 2012 11:41

snappyHexMesh with zero Thickness surface imported from a Geometry
 
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Hello!

I have a Geometry of an Umbrella structure (in dwg format) [see the attached photo] and I need to do a wind simulation on it using OpenFOAM

As far as I know, I need to make an STL file.

The problem is that the membrane part of the Umbrella is surfaces (not a solid) so I could not make an STL file out of it.

One approch is to give the membrane a thickness (convert it to solid) I did that. but when asking autoCAD to export it as an STL the membrane is messed up!

My question is: Is there a way to make an STL file including zero Thickness surface?!
or
Is there a way to use snappyHexMesh without doing the STL step? if there is, how to deal with the internal faces in openFoam? Can I deal with them as patches and assign BC to them?

Thanks for your help!


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