MESHING 
Mapped Mesh
Meshing -> Structured -> Volumes -> Select all volumes
-> Then Cancel the further process
Meshing -> Structured -> Lines -> Enter number to divide line -> Choose "2,
4 or 6" for
the lines -> Generate
Use the higher number such as 2 or 4 for the
higher accurate calculation.
ATILA requires that the mesh be composed exclusively of second order
elements. The corresponding setting can be found under the Meshing menu.
Select Quadratic Elements, then Quadratic. Note that
this option is automatically set when you start the ATILA-GiD interface.
For the transformer, we will define a structured mesh. Select Structured |
Volumes from the Meshing menu.

Apply this meshing condition to all the volumes in the geometry.

Then, define the number of subdivisions on all lines. Define 2 subdivisions along
the thickness of the transformer.


Next, impose 4 subdivisions in the width of the transformer.

And finally, define 6 subdivisions along the length of each section of the transformer.

To construct the mesh, select the
Meshing command from the
Meshing menu.
GiD asks for a default element size, which, here, is of no importance since
the whole geometry will receive a structured mesh. You can therefore use any
arbitrary value, the mesh will be the same.
When the meshing is complete, GiD displays information about the number of nodes
and elements that were generated.
The resulting mesh is shown in the next figure.