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- Select Mesh->Unstructured->Sizes by chordal error…
- The following window appears
- Enter 0.05 as chordal error. This error is the maximum distance between the element generated and the real object (geometry).
- Enter 4 as maximum meshing size.
- Enter 0.1 as minimum meshing size.
- If the right bottom button is clicked some extra information appears. We can select a curved line and see how the mesh will look like in this line. Click on the button "line" icon and select the line 34 and change the chordal error value in order to see how the mesh would change.
- Press OK.
- To see the sizes that GiD has assigned automatically, you can select the Draw->Sizes->All types option in the Mesh menu.
- Generate the mesh with the same general mesh size.
- The resulting mesh has a high concentration of elements in curved areas. Now our approximation is significantly improved.
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