From the Setup tab, select Manage > Local Mesh Control . If you have already meshed the model, the Mesh View appears. Also, green dots appear at nodes along each edge, indicating the existing divisions along the edges.
Select the faces and edges where you want to apply a Local Mesh Control. You can mix both entity types in a single selection.
If you want to apply a Local Mesh Control to an entire body (or bodies), click the Select button to the right of Body Selection. Then, select the desired bodies. Your selection can include a combination of faces, edges, and bodies.
Drag the Mesh size slider to the desired position between Fine and Coarse. Alternatively, you can specify the Length numerically. This input field is prepopulated with the average global element size, which gives you a ballpark idea about what might be an appropriate refined element size.
The number of green dots along selected edges and edges around selected faces increases as you decrease the mesh size setting.
Click OK to apply the Local Mesh Control and close the dialog.
Generate (or regenerate) the mesh to see the effects of the local refinement: