The Roller node adds constraints on the edges of the
Thin Layer node. The displacement is zero in the normal direction, but the thin layer is free to move in the other directions. See
Roller.
When an edge is shared between two or more boundaries, the local directions may not always be unique. It is then possible to use the control Face Defining the Local Orientations to select from which boundary the normal direction should be picked. The default is
Use face with lowest number.
To display this section, click the Show More Options button (
) and select
Advanced Physics Options in the
Show More Options dialog box. For more information about this section, see
Constraint Settings in the
COMSOL Multiphysics Reference Manual.
To display these sections (Excluded Edges in 3D geometries only), click the
Show More Options button (
) and select
Advanced Physics Options in the
Show More Options dialog box. For more information about these sections, see
Excluded Surfaces, Excluded Edges, and Excluded Points in the
COMSOL Multiphysics Reference Manual.
Physics tab with Thin Layer node selected in the model tree:
