[stardust23]

Hello to everyone,
I’m a new user of GMSH and I’m having some problems with an easy case.
I’m trying to mesh the geometry coming from a step file generated with Rhinoceros (a cylinder). In order to mesh my case, I need to generate the internal volume and I’m using the funcion Volume() to do it. Unfortunately, I get an error when generating the 3D mesh about intersecting entities and I cannot figure out why.


This is the outlook of my geo file:

Merge "Cylinder.stp";
 //+
 Physical Surface("Outlet", 7) = {3};
 //+
 Physical Surface("Inlet", 8) = {2};
 //+
 Physical Surface("Wall", 9) = {1, 4};
 //+
 Surface Loop(100) = { 1, 2, 3, 4};
 //+
 Volume(200) = {100};

I’m attaching also the step file.
Thanks in advance to anyone willing to help!