Keyur Kanade
Ansys Employee

Please split that face in design modeler. 

Also use local sizing in meshing. 

Please check following videos

Ansys Meshing Sizing:

DM Share topology:

SpaceClaim Share topology:

Fluent Meshing Watertight Workflow:

Ansys Meshing: Decomposition for hex meshing:

Ansys Meshing: Meshing Methods:

Ansys Meshing: Inflation:




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