NLAY

 — 

The number of sculpting layers beginning with detected seed elements. For local (partial) remeshing, this option helps the remesher to detect remeshing regions from the whole deformed model. Valid for both 2-D and 3-D analysis.

Default: 2-D analysis: VAL1 = 10. 3-D analysis: VAL1 = 2.

Generally, a larger VAL1 leads to larger remeshing regions and tends to unite isolated multiple regions. A larger value also tends to result in better remeshing quality (and increases mapping and solution overhead accordingly).

Only elements with the same element and material properties as seed elements are included into the remeshing regions.

VAL1 = 0 is not valid, as the remeshing regions would contain only the detected seed elements, resulting in many small cavities within remeshing regions (especially if the specified mesh-quality metric threshold [NLADAPTIVE] is relatively large).

For more information about this control, see Sculpting Layers Control in the Mechanical APDL Advanced Analysis Guide.

BDRA

 — 

The boundary angle threshold in degrees. Use this option to retain geometry features of the original (source) mesh. Valid for both 2-D and 3-D analysis.

In a 3-D analysis, this value is the dihedral angle (the angle between the normal vectors from two neighboring surface facets). In a 2-D analysis, this value is the 2-D patch boundary edge normal angle. If the edge angle or dihedral angle is larger than the specified threshold, the node shared by 2-D edges or edges shared by 3-D facets are retained during remeshing.

Valid values: 0 < VAL1 < 80.

Default: 2-D analysis: VAL1 = 10. 3-D analysis: VAL1 = 15.

Generally, a larger VAL1 improves the quality of the new mesh (and may even repair local tiny edges or facets of poor quality). Too large a value, however, may also smooth out some geometric features, leading to slightly different results and possibly causing convergence issues in the substeps immediately following remeshing.

For more information about this control, see Boundary-Angle and Edge-Angle Control in the Mechanical APDL Advanced Analysis Guide.

AEDG

 — 

The edge angle threshold in degrees. Valid for 3-D analysis only.

Use this control to split 3-D patch segments. The edge angle is the angle between adjacent surface segment edges sharing a node. If the edge angle is larger than the specified threshold (VAL1), the segment splits and the node is automatically treated as a node to be retained.

Default: VAL1 = 10.

Generally, a larger VAL1 improves the quality of the new mesh, but may result in loss of feature nodes. The effect is similar to that of boundary angles (Control = BDRA).

For more information about this control, see Boundary-Angle and Edge-Angle Control in the Mechanical APDL Advanced Analysis Guide.

SRAT

 — 

The global sizing ratio for remeshing. Valid for both 2-D and 3-D analysis.

Default: VAL1 = 1.0. The default value results in the new mesh having a similar size as that of the original mesh.

Generally, set the value (VAL1) to >= 0.7. The model can be refined (< 1.0) or coarsened (> 1.0) up to 3x depending on the number of 3-D elements, and approximately 2x for 2-D elements.

For more information about this control, see Global Sizing Control in the Mechanical APDL Advanced Analysis Guide.

GRAD

 — 

Controls the new mesh sizing gradient during remeshing. Valid for both 2-D and 3-D analysis.

Valid values: VAL1 = 0, 1, or 2.

For more information about this control, see Gradient Control in the Mechanical APDL Advanced Analysis Guide.

LIST

 — 

Lists all mesh-quality control parameters.

If VAL1 has been specified for a given mesh control, the most recently specified value is listed. If a value was not explicitly specified, the default value is listed (assuming that the problem has been solved at least once).