[Mojtaba.a]

Hi All,

The question is simple. I have an STL file like this:

solid solidBody1
facet normal -0.956157 -0.0404525 -0.290047
    outer loop
       vertex -0.227845 0.803515 0.212524
       vertex -0.241879 0.803515 0.258788
       vertex -0.232543 0.826684 0.22478
...
endsolid
solid solidBody2
facet normal -0.956157 -0.0404525 -0.290047
    outer loop
       vertex -0.227845 0.803515 0.212524
       vertex -0.241879 0.803515 0.258788
       vertex -0.232543 0.826684 0.22478
...
endsolid

Can I refer to each solidbody inside snappyHexMeshDict?

[AtoHM]

Hi
AFAIK there are at least two options:

1) split the STL file in two. Just take out the second section from solid ... endsolid and put it into a separate file. Then you can address each region in the geometry {} subdictionary of the snappyHexMeshDict.
2) You can define them under regions, give them a custom name (or keep the original one) and then use that name to refer to the regions, e.g. in the refinementSurfaces subdictionary. Example is here http://www.wolfdynamics.com/wiki/meshing_OF_SHM.pdf Checkout slide 20, this is how you address the regions. If the regions are closed, you probably need to use locationsInMesh instead of locationInMesh and set two points inside. Then in refinementSurfaces subdictionary you are also able to create cellZones directly in for each region.

Hope this helps.