FEM MeshTransfiniteCurve

Description

The FEM MeshTransfiniteCurve command creates a fixed amount of nodes on an edge with a structured algorithm.

Task panel of the MeshTransfiniteCurve tool

Usage

1. To enable the command a Mesh From Shape by Gmsh must be provided first.
2. Select the Mesh object in the Tree View.
3. There are several ways to invoke the command:
   • Press the Structured Transfinite Curve button.
   • Select the Mesh → GMSH Refinements → Structured Transfinite Curve option from the menu.
4. Select the type of node distribution on an edge:
   • Constant - specify the number of nodes
   • Bump - refinement towards both ends of the curve: specify the number of nodes and the coefficient
   • Progression - geometrical progression with power x: specify the number of nodes and the coefficient x (e.g. 2 means that each element on the edge will be twice as long as the preceding one)
5. Optionally, check the Invert box.
6. Press the Add button. Select a vertex, edge or face. To remove objects from the selection, press the Remove button.
7. Click the OK button.
8. Close the task.

   Result: You now should see a new TransfiniteCurve object under the FEMMeshGmsh object in your active analysis container.

9. Double-click on the FEMMeshGmsh parent object in your Model Tree and press Apply to force a mesh recalculation.
10. Close the task.

After the mesh has been created you can change its properties using the Property View. After you changed a property, you must reopen the Gmsh dialog again and click the Apply button. (You can leave the dialog open while changing properties.)

You can create as many different transfinite curves as needed.

Surface mesh with the highlighted edges using the transfinite algorithm with progression (bias) towards the edge of the cutout