MESH of complex geometry

[sophie Lu]

Hello,

I want to process complex urban ground as a MESH simulation. Now I have generate MESH of buildings successfully from DSM file. In this case, how can I extract the air area above the city? I have tried to generated a box that can cover the buildings and do Boolean cut, but it always warning that "cut cannot produce".

Is there any reference example or suggestion?

Thanks for your help!

Sophie

[louis.simvia]

Hello,

What software are you using to generate the mesh ?
According to what I understood, if you are using Salome shaper module to make the geometry, here is a video of how to make the mesh of the fluid domain around a house. You may find some tips that are related to current issue.
Let me know if this helps.