i’d like to calculate the forces on a surface by taking the stress tensor times the normal vectors. Therefore, i adjusted a simple example given by the forum.
There are two strange behaviors:
[li]defining the specialcf.normal(3) on regions leads to unexpected results [/li]
[li] The BoundaryFromVolume result is completely zero when trying to export to vtk[/li]
Perhaps i didn’t understand well how the specialcf.normal works?
Thanks in advance!