SnappyHexMesh for refining the patch from the background mesh
 

Hello,

I was trying to find a way to refine the patches using snappyHexMesh I had created using blockMesh? I can do it for an external stl file but have been struggling with this.

Can you please help me?

Thank you in advance.

Regards,
Saugat

I have not done it, but I have two ideas:
1- Make a .stl with named faces. Define their region names in geometry, and use surface refinement on them. The faces are surfaces, and you can make them coincide with your blockMesh patches

2- use a searchablebox geometry, overlap it over your whole patch, and use refinementregion there.

Thank You ghastbug!

I see that I can make it work from the second suggestion.

However, it is only a workaround. I still am trying to figure out how to select the patches for it to meshed around from refinement surfaces.

Thank You.