The zero wall velocity condition allows you to set the normal and tangential velocity components on the boundary section to zero. To define the zero wall velocity condition on a boundary section, select the Zero wall velocity (vn=vs=0) menu in the list of boundary condition choices.
Zero wall velocity (vn=vs=0)
| where | vn = the normal velocity component |
| vs = the tangential velocity component |
Note: In 3D, vs is a vector with two components.