2D FE mesh using SALOME 3.2.2v

Hello,

I'm looking for an advice on how to control the meshing of 2D object. How can I control the number and spicing of elements on each separate edge of a face?

The hypothesis and algorithm toolbar shown in most on the online tutorials does not exist in the live dvd version.
Does anyone know why it is missing?

Do I need to split the face into a number of coplaner areas in order to change the mesh density from place to place?

Thanks in advance,
Vito

Hello,

sorry for this confusion, but the tutorials are rather outdated now as they are based on an old version of Salome.
All the tools are still present in the actual release but are placed somewhere else.

To create a mesh with different characteristic size you need:
0) be sure to \"explode\" your geometry object so that you can select the edges when you will define the local mesh sizes
1) create a mesh with 1D & 2D hypothesis/algorithms as follow:
a) in the menu, select Create Mesh (a dialog appears)
b) select the geometry to mesh (use the \"arrow\" button)
c) choose 2D algo=Triangle(Mefisto), hypotheses=Length from edges
d) choose 1D algo=Wire discretization, hypothesis=average length (and a value to determine)
e) close dialog and compute mesh
2) create a \"submesh\" a local mesh definition:
a) in the menu, select Create SubMesh
b) select the geometry object to define the submesh: in your case you will try to select an edge.
when you click the \"arrow\" button, you can choose an edge by two methods: either select an existing edge in your geometry (which was exploded in step 0) or select a mesh element belonging the the edge that you want to refine (if the geometry has not been exploded).
d) choose 1D algo=Wire discretization, and create another hypothesis of type \"average length\" with another value
e) close dialog and compute mesh

You can then do the same for all other edges (press Apply instead of Close to keep the Submesh dialog open with the same options).

If it's not clear, do not worry, as I will publish new/updated tutorials when the next release will be out (in September)...


Good luck,

J.Cugnoni