Prescribed Normal Mesh Displacement
Use the Prescribed Normal Mesh Displacement node () to specify the displacement of the boundary in the reference normal direction. The node can be used on the boundaries of deforming domains. No constraints are set on the tangential displacement.
Normal Mesh Displacement
Enter a value or expression for the Prescribed normal mesh displacement dn (SI unit: m).
Prescribing a normal displacement on a boundary which is not flat can lead to unexpected results since the normal direction is computed at the initial — reference — position. For example, prescribing a constant normal displacement on a circular boundary allows a circle of any radius as solution.