FEM ConstraintHeatflux/ro: Difference between revisions
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==Description== |
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|[[FEM_ConstraintInitialTemperature|Constraint initial temperature]] |
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|[[FEM_ConstraintTemperature|Constraint temperature]] |
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This constraint specifies film heat transfer of a surface at temperature ''T'' and with a film coefficient ''h'' to the environment or sink at temperature ''T<sub>0</sub> ''. The convective heat flux ''q'' will satisfy: '''''q = h(T -T<sub>0</sub>)''''' |
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==Descriere== |
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Această constrângere specifică schimbul de căldură (transferul de căldură al filmului) al unei suprafețe la temperatura ''T'' și cu un coeficient de schimb termic h și o temperatură ambiantă ''T<sub>0</sub> ''. Fluxul de căldură convectiv ''q'' poate satisface: '''''q = h(T -T<sub>0</sub>)''''' |
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#Select in the 3D-view the surface(s) the constraint should be applied to. |
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#Enter the desired surface temperature, film coefficient and environment temperature. |
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{{Version|1.0}}: Can be also used to define a radiation heat flux on a surface. |
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==Limitations== |
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==Notes== |
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==Utilizare== |
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#Selectați în vizualizarea 3D suprafața/elepe care constrângerea trebuie aplicată. |
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#Introduceți temperatura dorită a suprafeței, coeficientul filmului și temperatura ambiantă. |
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===Options=== |
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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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{{Version|1.0}}: By using the option '''Surface Radiation''', one can specify a radiation heat flux by setting a proper surface emissivity and ambient temperature. |
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|[[FEM_ConstraintInitialTemperature|Constraint initial temperature]] |
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|[[FEM_ConstraintTemperature|Constraint temperature]] |
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Latest revision as of 07:32, 6 May 2024
FEM ConstraintHeatflux |
Menu location |
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Model → Thermal Constraints → Constraint heatflux |
Workbenches |
FEM |
Default shortcut |
None |
Introduced in version |
- |
See also |
FEM tutorial |
Descriere
Această constrângere specifică schimbul de căldură (transferul de căldură al filmului) al unei suprafețe la temperatura T și cu un coeficient de schimb termic h și o temperatură ambiantă T0 . Fluxul de căldură convectiv q poate satisface: q = h(T -T0)
introduced in version 1.0: Can be also used to define a radiation heat flux on a surface.
Utilizare
Options
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).
introduced in version 1.0: By using the option Surface Radiation, one can specify a radiation heat flux by setting a proper surface emissivity and ambient temperature.
Notă
- Constrângerea utilizează *FILM card in CalculiX. constrângerea fluxului de căldură este explicat la http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node203.html
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