FEM EquationElectricforce/de: Difference between revisions

From FreeCAD Documentation
(Created page with "{{GuiCommand/de |Name=FEM EquationElectricforce |Name/de=FEM GleichungElektrischeKraft |MenuLocation=Lösen → Electromagnetic Equations → Gleichung für elektrische Kraft |Workbenches=FEM |Version=0.19 |SeeAlso=FEM GleichungElektrostatik }}")
(Updating to match new version of source page)
 
(7 intermediate revisions by 2 users not shown)
Line 1: Line 1:
<languages/>
<languages/>


{{Docnav
{{Docnav/de
|[[FEM_EquationElectrostatic|Electrostatic equation]]
|[[FEM_EquationElectrostatic/de|GleichungElektrostatik]]
|[[FEM_EquationMagnetodynamic|Magnetodynamic equation]]
|[[FEM_EquationMagnetodynamic/de|GleichungElektrodynamik]]
|[[FEM_Workbench|FEM]]
|[[FEM_Workbench/de|FEM]]
|IconL=FEM_EquationElectrostatic.svg
|IconL=FEM_EquationElectrostatic.svg
|IconR=FEM_EquationMagnetodynamic.svg
|IconR=FEM_EquationMagnetodynamic.svg
Line 22: Line 22:
==Beschreibung==
==Beschreibung==


Diese Gleichung beschreibt die elektrostatische Kraft, die auf einer Oberfläche wirkt.
This equation describes the electrostatic force acting on a surface.


For info about the math of the equation, see the [http://www.elmerfem.org/blog/documentation/ Elmer models manual], section ''Electrostatic force''.
For info about the math of the equation, see the [http://www.elmerfem.org/blog/documentation/ Elmer models manual], section ''Electrostatic force''.


==Usage==
<span id="Usage"></span>
==Anwendung==


# After adding an Elmer solver as described [[FEM_SolverElmer#Equations|here]], select it in the [[Tree_view|tree view]].
# After adding an Elmer solver as described [[FEM_SolverElmer#Equations|here]], select it in the [[Tree_view|tree view]].
Line 33: Line 34:
# Change the [[#Solver_Settings|equation's solver settings]] or the [[FEM_SolverElmer_SolverSettings|general solver settings]] if necessary.
# Change the [[#Solver_Settings|equation's solver settings]] or the [[FEM_SolverElmer_SolverSettings|general solver settings]] if necessary.


The electricforce equation only calculates the force for faces with a [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential constraint]] if the constraint's option '''Calculate Electric Force''' is used.
The electricforce equation only calculates the force for faces with a [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential boundary condition]] if the boundary condition's option '''Calculate Electric Force''' is used.


==Solver Settings==
==Solver Settings==
Line 40: Line 41:


The electricforce equation provides this special setting:
The electricforce equation provides this special setting:
* {{PropertyData|Exec Solver}}: By default the equation is only solved after a timestep passed. This means it is first solved after the solution of other equations converged. When the setting is ''Always'' the equation is solved after every iteration within a time step. (For [[FEM_SolverElmer_SolverSettings#Type|steady-state]] simulations the whole simulation is one time step.)
* {{PropertyData|Exec Solver}}: By default the equation is only solved after a time step passed. This means it is first solved after the solution of other equations converged. When the setting is ''Always'' the equation is solved after every iteration within a time step. (For [[FEM_SolverElmer_SolverSettings#Type|steady-state]] simulations the whole simulation is one time step.)


==Constraint Information==
==Analysis Feature Information==


The electricforce equation does not have own constraints. It takes the [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential constraint]] from the [[Image:FEM_EquationElectrostatic.svg|24px]] [[FEM_EquationElectrostatic|Electrostatic equation]]. In the constraint it is important to use the option '''Calculate Electric Force'''.
The electricforce equation does not have its own analysis features. It takes the [[Image:FEM_ConstraintElectrostaticPotential.svg|24px]] [[FEM_ConstraintElectrostaticPotential|electrostatic potential boundary condition]] from the [[Image:FEM_EquationElectrostatic.svg|24px]] [[FEM_EquationElectrostatic|Electrostatic equation]]. In the boundary condition it is important to use the option '''Calculate Electric Force'''.


<span id="Result"></span>
<span id="Result"></span>
==Ergebnis==
==Ergebnis==


The result is the electric force density in <math>\rm N/m^2</math>.
Das Ergebnis it die elektrische Kraft in <math>\rm N/m^2</math>.




{{Docnav
{{Docnav/de
|[[FEM_EquationElectrostatic|Electrostatic equation]]
|[[FEM_EquationElectrostatic/de|GleichungElektrostatik]]
|[[FEM_EquationMagnetodynamic|Magnetodynamic equation]]
|[[FEM_EquationMagnetodynamic/de|GleichungElektrodynamik]]
|[[FEM_Workbench|FEM]]
|[[FEM_Workbench/de|FEM]]
|IconL=FEM_EquationElectrostatic.svg
|IconL=FEM_EquationElectrostatic.svg
|IconR=FEM_EquationMagnetodynamic.svg
|IconR=FEM_EquationMagnetodynamic.svg
Line 63: Line 64:
{{FEM Tools navi{{#translation:}}}}
{{FEM Tools navi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
{{clear}}

Latest revision as of 13:23, 24 November 2023

Other languages:

FEM GleichungElektrischeKraft

Menüeintrag
Lösen → Electromagnetic Equations → Gleichung für elektrische Kraft
Arbeitsbereich
FEM
Standardtastenkürzel
Keiner
Eingeführt in Version
0.19
Siehe auch
FEM GleichungElektrostatik

Beschreibung

Diese Gleichung beschreibt die elektrostatische Kraft, die auf einer Oberfläche wirkt.

For info about the math of the equation, see the Elmer models manual, section Electrostatic force.

Anwendung

  1. After adding an Elmer solver as described here, select it in the tree view.
  2. Either use the toolbar button or the menu Solve → Electromagnetic Equations → Electricforce equation.
  3. Now either use the toolbar button or the menu Solve → Electromagnetic Equations → Electrostatic equation. This is important because the electricforce equation needs the potential field calculated by the Electrostatic equation.
  4. Change the equation's solver settings or the general solver settings if necessary.

The electricforce equation only calculates the force for faces with a electrostatic potential boundary condition if the boundary condition's option Calculate Electric Force is used.

Solver Settings

For the general solver settings, see the Elmer solver settings.

The electricforce equation provides this special setting:

  • DatenExec Solver: By default the equation is only solved after a time step passed. This means it is first solved after the solution of other equations converged. When the setting is Always the equation is solved after every iteration within a time step. (For steady-state simulations the whole simulation is one time step.)

Analysis Feature Information

The electricforce equation does not have its own analysis features. It takes the electrostatic potential boundary condition from the Electrostatic equation. In the boundary condition it is important to use the option Calculate Electric Force.

Ergebnis

Das Ergebnis it die elektrische Kraft in .