Home / Examples / Fluid Analysis [Bernoulli] / Example 10: Swirling Component of Fan

Example 10: Swirling Component of Fan

General

• The air flows with axial flow fans attached to the inlet and outlet are analyzed. The swirling component is taken into account.
   

• Unless specified in the list below, the default conditions are applied.
   

• Obtain this session's project file. (Right-click and choose 'Save link as')

  
  

• Results will vary depending on Femtet version and the PC environment.

Analysis Space

Item	Settings
Analysis Space	3D
Model Unit	m

 

Analysis Conditions

Item	Tab	Setting
Solver	Solver Selection	Fluid Analysis [Bernoulli]
Analysis Type	Fluid Analysis	Steady-state Analysis
Meshing Setup	Mesh	General Mesh Size: 0.02 [m]
Fluid Analysis Setting	Fluid Analysis	Detailed Settings Maximum Number of Iterations per Step: 500

 

Model

 

 

Body Attributes and Materials

Body Number/Type	Body Attribute Name	Material Name
1/Solid	Flow_Path	000_Air *

* Available from the material DB

Boundary Condition

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Setting
FAN_IN/Face	Fluid	Inlet	Fan PQ Characteristics Number Volumetric Flow Rate (Q) [m3/s] Differential Pressure (P) [Pa] 1 0 4.9035 2 0.5094 0   Take swirl of axial flow fan into account Number of Rotations: 800 [RPM] Slip Factor: 5 [%]
FAN_OUT/Face	Fluid	Outlet	Forced Outflow Fan PQ Characteristics Number Volumetric Flow Rate (Q) [m3/s] Differential Pressure (P) [Pa] 1 0 4.9035 2 0.5094 0

 

Results

The contour diagram and the streamlines of the flow velocity are shown below.

The air flows inside the case can be examined with the swirling component of the inflow fan taken into account.