Page 55 - ansys

(b) Proximity Size Function: The proximity size function allows you to specify the minimum
number of element layers created in regions that constitute “gaps” in the model. For the purposes
of specifying a proximity size function, a “gap” is defined in one of two ways:
w The internal volumetric region between two faces
w The area between two opposing boundary edges of a face

(c) Fixed Size Function: The fixed size function does not refine the mesh based on curvature or
proximity. Rather, you specify minimum and maximum sizes and gradation is provided between
sizes based on a specified growth rate.
Relevance Center: Relevance Center sets the gauge of the Relevance slider control in the Default
group. Options are Coarse, Medium, and Fine. The default value can be set automatically according to
the Physics Pref-erence setting as described above under the Default Group.
Element Size: Element Size allows you to specify the element size used for the entire model. This size
will be used for all edge, face, and body meshing. This option does not appear when Use Advanced Size
Function is on.
Smoothing: Smoothing attempts to improve element quality by moving locations of nodes with
respect to surrounding nodes and elements. The Low, Medium, or High option controls the number of
smoothing iterations along with the threshold metric where the mesher will start smoothing.
Span Angle: Center Span Angle Center sets the goal for curvature based refinement. The mesh will
subdivide in curved regions until the individual elements span this angle. The following choices are
available:
w Coarse – 91o to 60o

w Medium - 75o to 24o
w Fine – 36o to 12o

Figure:

48