FEM ConstraintFlowVelocity: Difference between revisions

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==Usage== <!--T:9-->
==Usage== <!--T:9-->

#Click on [[Image:Fem-constraint-flow-velocity.svg|32x32px]]
or choose '''Model''' → '''Fluid Constraints''' → {{KEY|[[Image:Fem-constraint-flow-velocity.svg|32x32px]] Constraint flow velocity}} from the top menu
#The task panel for constraint flow velocity appears
[[File:FEM-constraint-flow-velocity task-panel.png]]
# The flow can be described according to the main cartesian components
<!--T:48-->
* Vector components that are ticked as "unspecified" will be interpolated by the selected solver.
** Any vector that should be the result of the solver must be ticked as "unspecified".
* If the target face or edge is not aligned with the main cartesian coordinate system, it is possible to tick "normal to boundary".
**If "normal to boundary" is ticked, the normal vector to the selected edge or face will be X and it will be oriented away from the mesh domain.
*** For example, if a flow of 20 mm/s of air must enter the domain, then after ticking "normal to boundary" the user will have to input -20 mm/s in the "velocity X" field.

==Notes== <!--T:10-->


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Revision as of 20:14, 27 May 2020

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FEM ConstraintFlowVelocity

Menu location
Model → Fluid constraints → Constraint flow velocity
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM tutorial

Description

Applies a flow velocity boundary condition to a face in 3D or to an edge in 2D.

Usage

  1. Click on
or choose ModelFluid Constraints Constraint flow velocity from the top menu
  1. The task panel for constraint flow velocity appears

  1. The flow can be described according to the main cartesian components
  • Vector components that are ticked as "unspecified" will be interpolated by the selected solver.
    • Any vector that should be the result of the solver must be ticked as "unspecified".
  • If the target face or edge is not aligned with the main cartesian coordinate system, it is possible to tick "normal to boundary".
    • If "normal to boundary" is ticked, the normal vector to the selected edge or face will be X and it will be oriented away from the mesh domain.
      • For example, if a flow of 20 mm/s of air must enter the domain, then after ticking "normal to boundary" the user will have to input -20 mm/s in the "velocity X" field.

Notes