The mesher examines curvature on edges and faces and computes element sizes on these entities such that the size will not violate the maximum size or the curvature normal angle, which are either automatically computed by the mesher or defined by the user.

Curvature-based sizing is defined by the following properties:

The Curvature Normal Angle is the maximum allowable angle that one element edge is allowed to span given a certain geometry curvature.