Home / Examples / Fluid Analysis [Bernoulli] / Example 9: Natural Inflow with Pressure Loss at Inlet
In this example, the loss coefficient is applied to the natural inflow boundary condition of Example 4.
Unless specified in the list below, the default conditions are applied.
Results will vary depending on Femtet version and the PC environment.
Item |
Settings |
Analysis Space |
3D |
Model Unit |
mm |
Item |
Tab |
Settings |
Solver |
Solver |
Fluid Analysis [Bernoulli] |
Analysis Type |
Fluid Analysis |
Steady-state Analysis |
Meshing Setup |
Mesh |
General Mesh Size: 6 [mm] |
Body Number/Type |
Body Attribute Name |
Material Name |
3/Solid |
Flow_path |
000_Air(*) |
4/Solid |
Column |
007_Fe * |
* Available from the material DB
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
|||||||||
Inlet/Edge |
Fluid |
Inlet |
Natural Inflow Loss Coefficient: 4.5 |
|||||||||
Outlet/Face |
Fluid |
Outlet |
Forced Outflow PQ characteristics
|
The figure below is the contour of [total pressure] field.
The left figure shows the results with the pressure loss of 4.5. The right figure is the results without the pressure loss.
The averaged total pressure without the loss coefficient at the inlet is almost 0 Pa.
With the loss coefficient being set, the averaged total pressure drops at the inlet.
Below are the result tables of the pressure loss.
The pressure loss between the inlet and outlet becomes large if the loss is set at the inlet.
