Assignment with Maximum
Chordal Error
- Select Meshing
Assign Sizes
By Chordal error.
- GiD asks for the minimum element size. Enter 0.1 and press Return.
- GiD asks for the maximum element size. Enter 10 and press Return.
- Enter the chordal error. This error is the maximum distance between the
element generated and the real object. Enter 0.05 and press Return.
- 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 in areas with curves. Now our approximation is significantly improved.
(See Figure 8.)

Figure 8. Mesh with maximum chordal
error. Here, there is a greater
concentration of elements in the zones with curves.