un-necessary connections in Mesh


I have a geometry in which there were 3 parts. I formed them into one part in design modeler. However, when i go to mesh generation, i am getting connections (contact regions).

for all my other geometries, its not the case (i dont get any contact regions). its only for this geometry which is a bit complicated.

can i do something to avoid getting contact regions? i tried to delete the contact regions manually but reappear in FLUENT setup. May be there is something to be done?



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