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Defects in surface imprint

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Old   February 11, 2021, 12:56
Unhappy Defects in surface imprint
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Hi everyone,

I'm running simulations on a geometry with side-holes. In post-processing I want to evaluate some parameters on the single side-hole, to do so I am loading the stl surface in Fluent and then I am doing the surface imprint.

Problem is that when I do this on a curved surface I get some defects as shown here:

This only happens on the inner side, while if I do the same on the external side everything is fine:

Does anybody know how to solve this and why it happens?

Thank you in advance
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imprint face, post processing, surface & solid bodies

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