CADFamily.com: ANSYS-General Preprocessing Part B

Local Meshing Controls

Local Mesh Controls can be applied to either a Geometry Selection or a Named Selection. These are available only when the mesh branch is highlighted. Available controls include :

-Method Control

-Sizing Control

-Contact Sizing Control

-Refinement Control

-Mapped Face Meshing (EMAG and cyclic, not covered)

-Inflation Control

-Pinch Control

-Gap Tool (EMAG only, not covered)

Local Meshing Controls : Method (continued)

-Method Control : Provides the user with options as to how solid bodies are meshed: (Valid only for bodies).

-Automatic (default):

.Body will be swept if possible. Otherwise, the “Patch Conforming” mesher under “Tetrahedrons” is used.

-Continued

Curvature and Proximity Refinement = Yes:

-Define by: maximum element size or approximate number of elements.

-Defeaturing Tolerance (yes): adds tolerance controls to defeature edges.

-Curvature and Proximity:automatically refines mesh based on curvature and proximity of features.

-Num Cells across Gap–Specifies the number of cells desired in narrow gaps. Refinement is limited by the Min Size Limit.

-Span Angle–Mesh will subdivide in curved regions till the individual elements span the specified angle. Limited by Min Size Limit.

-Hex Dominant : Creates a free hex dominant mesh. Useful for meshing bodies that cannot be swept. Recommended for meshing bodies with large interior volumes. (only available with ANSYS Structural licenses and above)

-The hex-dominant meshing algorithm creates a quad-dominant surface mesh first, then pyramid and tetrahedral elements are filled in as needed.

.“Control Messages” will appear to warn user if volume may not be suitable for hex-dominant meshing