[hk.narahari]

. I am trying to develop a case study for teaching CFD in the class to this end I am using OpenVSP, GMSH and SU2.
1. I have created a wing in OpenVSP , exported the CFD mesh as .stl file.
2. Opened the .stl file in GMSH GUI and added a box .
3. I am able to create the 3d mesh and export it in SU2 format.
My difficulty is how do I include markers in the .geo file ? In this case I want to treat the airfoil as one marker (EULER) and box as farfield. The geo file is
------------------------------------------------------------
Merge "wing1.stl";
SetFactory("OpenCASCADE");
Box(1) = {-20.0, -20.0, -25.0, 35, 35, 35};
------------------------------------------------------------
The wing is just default wing which is in OpenVSP
Apologies for asking a basic question , but any suggestions will be greatly appreciated
Thanks in advance
Narahari