Boundary Conditions

Verify the boundary conditions.

  1. On the Physics tab under Zones, click Boundaries.

    The Boundary Conditions Task Page opens, with nine boundary conditions in the zones list.

  2. Review inlet parameters.

    1. Double-click the inlet zone.

      The Pressure Inlet dialog opens.

    2. On the Momentum tab, verify that Gauge Total Pressure is set to the following expression:

      10 [kPa] * sin(2.*PI*t/0.02[s])

      This value limits the input pressure and indicates that the pressure is a function of time.

      Tip:  To view the sinusoidal wave of the valve pressure, open the Expression Editor ( ), enter 0.01 (the simulation end time) for the Max setting, and click Refresh ( ).

    3. Click Close to exit the dialog.

  3. Review outlet parameters.

    1. Double-click the outlet zone.

      The Pressure Outlet dialog opens.

    2. On the Momentum tab, verify that Gauge Pressure is set to the default of 0 [Pa].

    3. Click Close to exit the dialog.