Smoothing is used to adjust the locations of element corners (nodes) to reduce distortions in these elements.
To apply smoothing to the elements of your mesh:
In the Modification menu select the Smoothing item or click "Smoothing" button in the toolbar.
The following dialog will appear:
In this dialog:
specify the IDs of the elements which will be smoothed:
choose the Smoothing Method:
Centroidal smoothing pulls a node toward the element-area-weighted centroid of the surrounding elements.
Typically, the Laplacian method will produce the mesh with the least element distortion. It is also the fastest method. Centroidal smoothing usually produces a mesh with more uniform element sizes. Both methods produce good results with "free" meshes.
The initial mesh
The smoothed mesh
See Also a sample TUI Script of a Smoothing operation.