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FEM ConstraintInitialPressure

From FreeCAD Documentation

FEM ConstraintInitialPressure

Menu location
Model → Fluid Boundary Conditions → Initial Pressure Condition
Workbenches
FEM
Default shortcut
None
Introduced in version
0.21
See also
FEM Constraint initial flow velocity

Solvers
Elmer

Description[edit | edit source]

Creates an initial pressure condition for a fluid flow analysis.

Usage[edit | edit source]

  1. There are several ways to invoke the command:
    • Press the Initial Pressure Condition button.
    • Select the Model → Fluid Boundary Conditions → Initial Pressure Condition option from the menu.
  2. Enter an initial pressure value.
  3. Press the Add button. For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face. introduced in 1.1: To remove objects from the selection, press the Remove button.

Notes[edit | edit source]

For simple analyses, it is not necessary to specify the initial pressure, however also in these cases it is recommended as best practice.