Outlet
The Outlet node defines an edge or point where fluid leaves the gap.
Outlet Settings
Select an Outlet condition — Zero pressure (the default), Pressure, Normal outflow velocity, or Outflow. When the Cavitation check box is selected for the physics interface (see Cavitation), Starvation is also available.
•
For Zero pressure, pf = 0 applies on the boundary, edge, or point.
•
For Pressure, enter a Pressure pf0 (SI unit: Pa) to impose pf = pf0 on the boundary, edge, or point. The default is 0 Pa. If the reference pressure pref, defined at the physics interface level is 0, pf0 is the absolute pressure. Otherwise, pf0 is the relative pressure.
•
For Normal outflow velocity, enter a Normal outflow velocity U0 (SI unit: m/s). The default is 0 m/s.
•
For Outflow, the fluid is allowed to leave the gap without explicitly imposing a value of pressure or velocity.
•
For Starvation, enter a value for the Fluid fraction θ0 (dimensionless). The default is 0.6.