Add a Prescribed Velocity node to define the velocity at a boundary. Add this node from the Mechanical submenu.

Select the components to prescribe and enter a value for the Prescribed in the direction (SI unit: m/s).

To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box.

To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box. See Suppressing Constraints on Lower Dimensions for details.