Assign size to lines

We are going to set a specific mesh size to some of the lines of the model:

• To see entity numbers select the Label option (see Labels). Select all the lines in order to see their numbers.
• Select Mesh->Unstructured->Assign sizes on lines. In the window that appears, enter the size of the elements around the lines that will be chosen. Enter 0.5 and click Assign.
• Select the lines defining the base of the prism (i.e. lines 1, 2, 3, 4 and 40).
• Press <Esc> to indicate that the selection of lines is finished, and Close the window.
• Then generate the mesh again with the same general mesh size as before.
• This results in a high concentration of elements around the chosen lines, given that the selected element size (0.5) is smaller than that of the rest of the elements in the model.