FEM ConstraintInitialFlowVelocity: Difference between revisions

From FreeCAD Documentation
(update docnav)
(There is no limitation, one has to define the direction via the 3 velocity dimensions)
Line 31: Line 31:
# Enter an initial flow velocity value for the analysis. The value is entered as a combination of the 3 main cartesian vectors components (X,Y,Z).
# Enter an initial flow velocity value for the analysis. The value is entered as a combination of the 3 main cartesian vectors components (X,Y,Z).
# For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face.
# For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face.

==Limitation== <!--T:11-->

<!--T:12-->
*The constraint cannot be oriented other then using the main Cartesian components. This is a limitation of Elmer.


==Notes== <!--T:13-->
==Notes== <!--T:13-->


<!--T:14-->
<!--T:14-->
In the most simple analyses, it is not necessary to specify the initial flow velocity, however it is recommended as best practice.
In simple analyses, it is not necessary to specify the initial flow velocity, however it is recommended as best practice.





Revision as of 03:46, 20 March 2023

FEM ConstraintInitialFlowVelocity

Menu location
Model → Fluid Constraints → Constraint initial flow velocity
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM Constraint flow velocity, FEM Constraint initial pressure

Description

Creates an initial flow velocity constraint for a fluid flow analysis.

Usage

  1. Either press the toolbar button FEM ConstraintInitialFlowVelocity or select the menu Model → Fluid Constraints → Constraint initial flow velocity.
  2. Enter an initial flow velocity value for the analysis. The value is entered as a combination of the 3 main cartesian vectors components (X,Y,Z).
  3. For a 3D analysis, select a 'solid' (body) from your model, for a 2D analysis select a face.

Notes

In simple analyses, it is not necessary to specify the initial flow velocity, however it is recommended as best practice.