The elements are generated automatically by the Mesh Mesh generation Create elements Triangles and quadrilaterals (global). Afterwards, by means of Mesh Unbend, the mesh is relaxed twenty times, for this example, to achieve optimum angles between the element sides.

The elements inside the lake are then deleted via Mesh Element Delete Polygon, as the lake is treated as an inner boundary in this model. Finally, the nodes are deleted via Mesh Nodes Delete Without elements and fractures.

Finished FE-mesh

In the image above, the nodes and contours have been hidden for a better overview (View Nodes

and Contours or by pressing the corresponding buttons in the toolbar or Project manager).

The markers on the structures were hidden with Structure Edit Pick and then deactivating the Show markers checkbox.

The last step in the mesh creation process is to carry out mesh checks (Mesh Checks…) and eliminate any errors before starting with step 3: Data assignment!

The finished model and structure file "schritt2_netz.net" is available for download on our website or has already been loaded (.../Tutorial_bsp_files/Tutorial_2D_bsp_files/schritt2_netz.net). It can be used for further processing.

Before the data assignment is started the mesh generator TRIANGLE will be explained.