FEM MeshRegion/de

Beschreibung
FEM MeshRegion enables the user to set a localized set of meshing parameters by selecting a set of elements (Vertex, Edge, Face) and applying the parameters to it. It is especially useful for refining meshes in areas of interest or areas where the solver will generate stronger gradient of a variable. For example, it can be used to refine the mesh around stress-risers (sharp edges, circles...) in mechanical analysis, or at areas of contraction in a fluid flow.

Refining the mesh has the advantage of enabling accurate simulation where needed, while allowing coarser mesh in the wider domain, thus drastically optimizing the computation time while maintaining meaningful solutions output.

Anwendung

 * 1) To enable the function a mesh must be first provided [[Image:FEM_MeshGmshFromShape.svg|32px]] FEM mesh from shape by Gmsh.
 * 2) * Select the Mesh object in the Model Tree and press the [[Image:FEM_MeshRegion.svg|32px]] button.
 * 3) * Select the Mesh object in the Model Tree and select the option from the menu.
 * 4) Edit the maximal element size for the region.
 * 5) Click the  button.
 * 6) Close the task.
 * Result: You now should see a new object under the  object (see example #3 below) in your active analysis container.
 * 1) Double-click on the  parent object in your Model Tree and press  to force a mesh recalculation.
 * 2) Close the task.

Nachdem das Netz generiert wurde, kann der Eigenschafteneditor verwendet werden, um seine Eigenschaften anzupassen. Nach Änderung einer Eigenschaft, muss der Aufgabenbereich FEM-Netz durch Gmsh erneut geöffnet und die Schaltfläche gedrückt werden. (Der Aufgabenbereich kann geöffnet bleiben, solange weitere Eigenschaften geändert werden.)

Es können so viele unterschiedliche Netzbereiche wie nötig erstellt werden.

Visual examples






Hinweise
The order in which the regions are shown in Tree view could change the mesh result. See this forum thread.

Related

 * "Mesh Regions for a Better Analysis" - Video Tutorial by Joko Engineering (link)