FEM ConstraintBodyHeatSource/it
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| Posizione nel menu |
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| Modello → Vincoli termici → Vincolo fonte di calore del corpo |
| Ambiente |
| FEM |
| Avvio veloce |
| Nessuno |
| Introdotto nella versione |
| - |
| Vedere anche |
| Tutorial FEM |
Descrizione
Definisce un calore generato internamente e ceduto in W/kg (non J/m³). Per maggiori informazioni vedere https://forum.freecadweb.org/viewtopic.php?f=18&t=44705&start=490#p422539 e seguenti e anche Elmer "Tutorial 1 - Heat equation – Temperature field of a solid object" in https://www.nic.funet.fi/pub/sci/physics/elmer/doc/ElmerTutorials.pdf.
1.0 and above: Can also define the heat source in W.
Heat sink with a chip underneath serving as a body heat source
Utilizzo
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub
Limitations
- 0.20 and below: The body heat source is applied to the whole model, meaning all bodies of the setup. It is not possible to select an individual body.
- 0.21 and below: This feature only works with the Elmer solver.
Notes
- For more information see this forum thread and following posts. This thread may also be useful.
- Elmer examples can also be found in Elmer GUI Tutorials.
- 1.0 and above: This feature uses the *DFLUX card in CalculiX.
- 1.0 and above: Since CalculiX expects body heat flux input in W/mm^3 while for Elmer it's W/kg, the conversion of the specified value (in W or W/kg) is done internally for each solver, using the volume of the selected solid and the density of the material assigned to it, if needed.
FEM
- 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
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub