[nzy102]

Hello:

First, thank openfoam team for the wondful tool snappyhexmesh. I am working on meshing a quite geometry now. I made the geometry from solidworks. Then converted the solidworks file to STL. The problem with solidworks is it exported the geometry as a whole surface. So I couldn't make patches in the stl file. As a workaround, I imported the stl file in Rhino and saved every surface (patch) as a stl file in ASCII format. Then I put all the stil files together (integrated stl file). When I ran snappyhexmesh, I got something like:

===============================================
Shell **** does not support testing for inside
Probably it is not closed
================================================

I went back to open the integrated stl file in several different softwares ( blender, rhino and solidworks) and it looked that the stl file is closed. Does anybody here has a similar problem?

Is there any other way to makes patches for STL files in general?

Thank you so much.

[mattijs]

To use inside/outside we require every edge to have exactly two faces using it. Load in paraview, Filter->Feature Edges and switch on the 'non-manifold' edges. Disable all sharp angle ones (by setting angle to 180?).

[nzy102]

Hi Mattijs:

It gave me the same error.

Ning