Defining an Intake Fan

You can create an intake fan to simulate the effects of air flow entering the fluid domain.

See Also
About Fan Boundary Conditions
  1. From the Fans section of the action bar, click Intake/Exhaust Fan .
  2. Optional: Enter a descriptive Name.
  3. Select a stagnation inlet as the support for the intake fan.
  4. From the Type options, select Intake.
  5. From the Direction specification options, specify how you want to define the direction of the intake air.
    OptionDescription
    Normal Defines intake air flow normal to the intake fan.
    Specified Defines intake air flow in a direction other than normal to the intake fan.
  6. Specify the Stagnation gauge pressure at the intake inlet.
  7. For manually specified intake direction, specify the axis that serves as the direction of air flow. You can select an axis in the global axis system, a local axis system defined for your model geometry, or an axis system that you specify from the 3D area.
  8. Specify the Temperature at the boundary.
  9. From the Turbulence specification options, select the specification method and then specify the individual turbulence parameters in the fields that appear. For more information, see About Turbulence.
  10. To define a constant pressure jump across the fan interface:
    1. From the Pressure jump options, select Constant.
    2. From the Pressure jump field, specify the pressure change across the fan.
  11. To define a pressure jump that varies according to the volume flow rate:
    1. From the Pressure jump options, select Fan curve.
    2. Specify pairs of Volume flow rate and Pressure jump values in the table that appears.
  12. Click OK.