Number of refinement
 

Hello,

May anyone help me.
I want to know if I change the number of refinement, did I need to change the other setting also..???..
I want to reduce the number of refinement because my laptop unable to support a large number of refinement.
But when I do so there will be error where hole been detected.

Thank you.

refinement increases the chance of successful meshing.
depending on the geometry, a certain level of refinement is needed to avoid the holes inside the domain.
one solution is to confine the refinement only to critical regions and for other regions keep the element size as big as possible.