NREFINE

NREFINE, NN1, NN2, NINC, LEVEL, DEPTH, POST, RETAIN
Refines the mesh around specified nodes.

Valid Products: Pro | Premium | Enterprise | PrepPost | Solver | AS add-on

NN1, NN2, NINC

Nodes (NN1 to NN2 in increments of NINC) around which the mesh is to be refined. NN2 defaults to NN1, and NINC defaults to 1. If NN1 = ALL, NN2 and NINC are ignored and all selected nodes are used for refinement. If NN1 = P, graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI). A component name may also be substituted for NN1 (NN2 and NINC are ignored).

LEVEL

Amount of refinement to be done. Specify the value of LEVEL as an integer from 1 to 5, where a value of 1 provides minimal refinement, and a value of 5 provides maximum refinement (defaults to 1).

DEPTH

Depth of mesh refinement in terms of number of elements outward from the indicated nodes (defaults to 1).

POST

Type of postprocessing to be done after element splitting, in order to improve element quality:

OFF

 — 

No postprocessing will be done.

SMOOTH

 — 

Smoothing will be done. Node locations may change.

CLEAN

 — 

Smoothing and cleanup will be done. Existing elements may be deleted, and node locations may change (default).

RETAIN

Flag indicating whether quadrilateral elements must be retained in the refinement of an all-quadrilateral mesh. (Mechanical APDL ignores this argument if you are refining anything other than a quadrilateral mesh.)

ON

 — 

The final mesh will be composed entirely of quadrilateral elements, regardless of the element quality (default).

OFF

 — 

The final mesh may include some triangular elements to maintain element quality and provide transitioning.

Notes

This command refines all area elements and tetrahedral volume elements adjacent to the specified nodes.

Mesh refinement is not available on a solid model containing initial conditions at nodes (IC), coupled nodes (CP family of commands), constraint equations (CE family of commands), or boundary conditions or loads applied directly to any of its nodes or elements. This restriction applies to nodes and elements anywhere in the model, not just in the region where you want to request mesh refinement. For more information about mesh refinement, see Revising Your Model.

This command is also valid for rezoning.

Menu Paths

Main Menu>Preprocessor>Meshing>Modify Mesh>Refine At>Nodes