Is there a way to remove/replace the overlapping faces in Engrid, or outside (then re-import it so that the boundary layer mesh is still recognized as such)? I tried exporting to Blender but I could not see the boundary layer mesh in the Blender view even though the file size had increased (suggesting it had been saved). Is this a known bug in the prismatic layer tool?
![meshlab split mesh meshlab split mesh](https://www.simscale.com/forum/uploads/default/optimized/2X/a/aa1eb204a1912d0043d9599ec4c4a0b3d3d24d68_2_1035x519.png)
I tried to fix this problem using “Fix Triangulation” in Engrid but it failed with “there appears to be a bug in Engrid”. The actual blade mesh directly below was smooth, quite flat with wide nicely generated triangles. I exported all to an STL file and Meshlab showed that there were overlapping faces but only on the boundary layer mesh itself. I then tried to divide the layer but Engrid complained saying there were overlapping faces. I then created the prismatic boundary layer (1 iteration). I then improved the surface mesh (one iteration) and exported the result to Meshlab to ensure watertight and no overlapping faces.
Meshlab split mesh Patch#
Select the primary patch and glue in place. I then exported it to Engrid and applied the boundary codes etc. Open all the STL files by using Cntrl key with mouse selection. Note that if there are no disconnected parts of the mesh besides the armor, using the By Loose Parts option might be faster.
![meshlab split mesh meshlab split mesh](http://www.huyaoyu.com/Resources/Posts/CGAL/AFS/reconstructed.png)
By Material Creates separate mesh objects for each material.
![meshlab split mesh meshlab split mesh](http://fab.cba.mit.edu/classes/863.15/section.Harvard/people/Durand/images/project6/15_mesh_v2.png)
I then imported it into Blender to provide a surrounding box in a similar manner to the tutorial. Separates the mesh in its unconnected parts. I split this into separate files using Meshlab to provide separate upper and lower boundary codes (a test to re-combine them showed that it remained watertight with no overlapping faces). I have an STL file that contains a thin blade. My problem is that when I try to divide the prismatic boundary layer Engrid says that there are overlapping faces. Divide Prismatic Boundary Layer Mesh causes overlapping faces - CFD Online Discussion Forumsįirstly.