FEM EquationElectrostatic: Difference between revisions
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The electrostatic equation provides these special settings: |
The electrostatic equation provides these special settings: |
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* {{PropertyData|Calculate Capacitance Matrix}}: Calculates the capacitance matrix. |
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* {{PropertyData|Calculate Electric Energy}}: Calculates the electric energy. |
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* {{PropertyData|Calculate Electric Field}}: Calculates the electric field. |
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* {{PropertyData|Calculate Electric Flux}}: Calculates the electric flux. |
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* {{PropertyData|Calculate Surface Charge}}: Calculates the surface charge. |
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* {{PropertyData|Capacitance Matrix Filename}}: File in which the capacitance matrix is being saved. This will only be used if {{PropertyData|Calculate Capacitance Matrix}} is set to ''true''. |
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* {{PropertyData|Constant Weights}}: If constant weighting for results is used. |
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==Constraint Information== <!--T:18--> |
==Constraint Information== <!--T:18--> |
Revision as of 16:56, 25 October 2022
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FEM EquationElectrostatic |
Menu location |
---|
Solve → Electrostatic equation |
Workbenches |
FEM |
Default shortcut |
None |
Introduced in version |
0.19 |
See also |
FEM Electricforce equation, FEM Example Capacitance Two Balls |
This equation perform electrostatic analyses using Gauss' law.
For info about the math of the equation, see the Elmer models manual, section Electrostatics.
Usage
- After adding an Elmer solver as described here, select it in the tree view.
- Now either use the toolbar button or the menu Solve → Electrostatic equation.
- Change the equation's solver settings or the general solver settings if necessary.
Solver Settings
For the general solver settings, see the Elmer solver settings.
The electrostatic equation provides these special settings:
- DataCalculate Capacitance Matrix: Calculates the capacitance matrix.
- DataCalculate Electric Energy: Calculates the electric energy.
- DataCalculate Electric Field: Calculates the electric field.
- DataCalculate Electric Flux: Calculates the electric flux.
- DataCalculate Surface Charge: Calculates the surface charge.
- DataCapacitance Matrix Filename: File in which the capacitance matrix is being saved. This will only be used if DataCalculate Capacitance Matrix is set to true.
- DataConstant Weights: If constant weighting for results is used.
Constraint Information
The electrostatic equation takes the following constraints into account if they are set:
Note
Except for calculations in 2D, for electrostatic potential constraints it is important that they act on a face or body. Constraints for 3D set to lines or vertices are not recognized by the Elmer solver.
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- Geometrical: Plane rotation, Section print, Transform
- Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight
- Thermal: Initial temperature, Heat flux, Temperature, Body heat source
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
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