Mesher Still Generates Internal Surfaces After Boolean Subtraction

[a.y.al-wardi]

I’m working on a model where I’ve performed a Boolean subtraction (in DesignModeler) to remove internal components from a larger chamber. The Boolean appears to be successful as I can visually confirm the void region and there's only one solid body listed in the structure tree.

However, when I open the geometry in ANSYS Meshing, the internal surfaces from the subtracted region are still being meshed, even though the volume was removed.

What I have tried: 

• Performed Boolean subtraction properly (target body first, tool body second, “Keep tool body” unchecked)

• Verified in section view that the void is present

• Deleted/suppressed all leftover bodies

• Confirmed that only one solid body exists

• Exported the final result as a clean Parasolid (.x_t), and re-imported into a fresh Workbench project

 

Why is ANSYS Meshing still picking up and generating mesh on internal surfaces after Boolean subtraction?

Any suggestions on how to fully eliminate these would be appreciated.

[Rob]

Please post some images.