pro\e model to be exported for gambit meshing
 

hi!
i m new student of CFD. i hav developed a model in pro\e wildfire 2.0. for simplicity, i hav 1st developed an annular pipe of length 253in or simply a annulus space b/w them(hollow pipe) that is actually flow domain. i m saving this pro\e model or part as a copy in iges formate for gambit.after importing in gambit, when i perform direct vol meshing,it could not mesh the whole pipe. when i 1st mesh the 4 edges along the length of pipe and then perform vol meshing, it meshes the whole pipe like a solid pipe without considering the annulus space in the center.
plz, tel me the detail steps for pro\e model exporting to gambit and perform mesh.
i will b g8ful 2 u!

Hi,
Try to export step file instead of iges
In Gambit,if it comes as 1 volume then stitch the volume with the faces u want(again create faces with req. edges)
When u hv required volume, mesh volumes separately
If still not clear, upload an image