FEM ConstraintHeatflux/de: Difference between revisions
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|[[FEM_ConstraintInitialTemperature| |
|[[FEM_ConstraintInitialTemperature/de|RandbedingungStarttemperatur]] |
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|[[FEM_ConstraintTemperature| |
|[[FEM_ConstraintTemperature/de| RandbedingungTemperatur]] |
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{{GuiCommand |
{{GuiCommand/de |
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|Name=FEM ConstraintHeatflux |
|Name=FEM ConstraintHeatflux |
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|Name/de=FEM RandbedingungWärmestrom |
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|MenuLocation=Model → Thermal Constraints → Constraint heatflux |
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|MenuLocation=Modell → Thermische Randbedingungen und Belastungen → Wärmestrombelastung |
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|Workbenches=[[FEM_Workbench/de|FEM]] |
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|SeeAlso=[[FEM_tutorial/de|FEM-Anleitung]] |
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<span id="Description"></span> |
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==Beschreibung== |
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Defines a convective heat flux load on a surface at a temperature ''T'' with a film coefficient ''h'' and with the environment (sink) temperature ''T<sub>0</sub>''. The convective heat flux ''q'' will satisfy: '''''q = h(T -T<sub>0</sub>)'''''. Optionally, can also define a regular surface heat flux load. |
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<span id="Usage"></span> |
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==Anwendung== |
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# Es gibt mehrere Möglichkeiten, den Befehl aufzurufen: |
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# There are several ways to invoke the command: |
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#* |
#* Die Schaltfläche {{Button|[[Image:FEM_ConstraintHeatflux.svg|16px]] [[FEM_ConstraintHeatflux/de|Wärmestrombelastung]]}} drücken. |
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#* |
#* Den Menüeintrag {{MenuCommand|Modell → Thermische Randbedingungen und Belastungen → [[Image:FEM_ConstraintHeatflux.svg|16px]] Wärmestrombelastung}} auswählen. |
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# In |
# In der [[3D_view/de|3D-Ansicht]] die Fläche(n) auswählen, auf die die Wärmestrombelastung angewendet werden soll. |
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# Die gewünschten Werte für Wärmeübergangskoeffizient und Umgebungstemperatur eingeben. |
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# Enter the desired surface temperature, film coefficient and environment temperature. |
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===Option=== |
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By default, this feature defines a convective heat flux. By using the option '''Surface heat flux''', one can specify a heat flux value in Watts per surface area (W/m^2). |
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<span id="Notes"></span> |
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==Hinweise== |
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* The '''Surface heat flux''' option uses the *DFLUX card in CalculiX: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node188.html |
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Revision as of 18:45, 20 December 2023
FEM RandbedingungWärmestrom |
Menüeintrag |
---|
Modell → Thermische Randbedingungen und Belastungen → Wärmestrombelastung |
Arbeitsbereich |
FEM |
Standardtastenkürzel |
Keiner |
Eingeführt in Version |
- |
Siehe auch |
FEM-Anleitung |
Beschreibung
Defines a convective heat flux load on a surface at a temperature T with a film coefficient h and with the environment (sink) temperature T0. The convective heat flux q will satisfy: q = h(T -T0). Optionally, can also define a regular surface heat flux load.
Anwendung
- Es gibt mehrere Möglichkeiten, den Befehl aufzurufen:
- Die Schaltfläche Wärmestrombelastung drücken.
- Den Menüeintrag Modell → Thermische Randbedingungen und Belastungen → Wärmestrombelastung auswählen.
- In der 3D-Ansicht die Fläche(n) auswählen, auf die die Wärmestrombelastung angewendet werden soll.
- Die gewünschten Werte für Wärmeübergangskoeffizient und Umgebungstemperatur eingeben.
Option
By default, this feature defines a convective heat flux. By using the option Surface heat flux, one can specify a heat flux value in Watts per surface area (W/m^2).
Hinweise
- The heat flux load uses the *FILM card in CalculiX. It is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node203.html
- The Surface heat flux option uses the *DFLUX card in CalculiX: http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node188.html
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
Anwenderdokumentation
- Erste Schritte
- Installation: Herunterladen, Windows, Linux, Mac, Zusätzlicher Komponenten, Docker, AppImage, Ubuntu Snap
- Grundlagen: Über FreeCAD, Graphische Oberfläche, Mausbedienung, Auswahlmethoden, Objektname, Programmeinstellungen, Arbeitsbereiche, Dokumentstruktur, Objekteigenschaften, Hilf FreeCAD, Spende
- Hilfe: Tutorien, Video Tutorien
- Arbeitsbereiche: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework