I need your invaluable supports, friends.
 

Hi Experts,
I'm an interventional cardiologist. we generated a pipe in .stl format then we tried to to meshing , at first with named selection e defined inlet outlet but we couldn't define the fluid volume within the pipe, and because of that we couldn't do the meshing. I think the reason is because of the without caping the holes at both sides. And I tried to close these holes with creating surfaces in Spaceclaim but several times I tried but failed. Could you please help me how to do it in Spaceclaim before going to meshing step? I need your kind hlps friends.
Kind REgards
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Thanks mali28. Just see your message. I wil send the geometry now.
Kind Regards