FEM ConstraintInitialFlowVelocity: Difference between revisions

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# Either
# Either
#* press the toolbar button {{Button|[[Image:FEM_ConstraintInitialFlowVelocity.svg|16px]] '''FEM ConstraintInitialFlowVelocity'''}}
#* press the toolbar button {{Button|[[Image:FEM_ConstraintInitialFlowVelocity.svg|16px]] '''FEM_ConstraintInitialFlowVelocity'''}}
#* or select the menu {{MenuCommand|Model → Fluid Constraints → [[Image:FEM_ConstraintInitialFlowVelocity.svg|16px]] Constraint initial flow velocity}}.
#* or select the menu {{MenuCommand|Model → Fluid Constraints → [[Image:FEM_ConstraintInitialFlowVelocity.svg|16px]] Constraint initial flow velocity}}.
# 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).

Revision as of 17:35, 8 October 2022

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.

Limitation

  • The constraint cannot be oriented other then using the main Cartesian components. This is a limitation of Elmer.

Notes

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