Select Meshing Assign sizes
Lines. In the window that comes up, enter the size of the elements around
the lines that will be chosen. Enter 0,5 and click OK.
Select the lines defining the base of the prism. Press ESC.
Select Meshing Generate.
A window comes up asking if the previous mesh should be eliminated. Click
Yes.
Another window appears in which you may enter a maximum element size. Leave
the default value unaltered and click OK. This results in a high concentration
of elements around the chosen lines, given that the selected element size
(0,5) is much smaller than that of the rest of the elements in the model.
(See Figure 6.)
Figure 6. Mesh with a concentration
of elements around lines.