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-   -   wall heat transfer (https://www.cfd-online.com/Forums/openfoam/96476-wall-heat-transfer.html)

kikko January 24, 2012 05:58
wall heat transfer
 
Good Morning at all,
I want to know if in OpenFoam is it possible to set a wall heat transfer boundery condition.
My case is listed below:
_ U=500 W/(m2 °k)
_ Text=577°K
I want that OpenFOAM solve:
k (dt/dx) =U (text-T)
Have OpenFoam a boundery condition to do that????
Thanks all for attention

romant January 26, 2012 03:28
Quote:
Originally Posted by kikko (Post 340811)
Good Morning at all,
I want to know if in OpenFoam is it possible to set a wall heat transfer boundery condition.
My case is listed below:
_ U=500 W/(m2 °k)
_ Text=577°K
I want that OpenFOAM solve:
k (dt/dx) =U (text-T)
Have OpenFoam a boundery condition to do that????
Thanks all for attention

you can use either the turbulentHeatFlux boundary condition or just a fixedGradient boundary condition where you set your temperature gradient based on

Code:
dT/dx = U/k * (text-T)
more complicated boundary conditions can be set with groovyBC, where you then can also set temperature gradients based on different values from within you domain or something like that.

kikko January 30, 2012 05:08
I have just set the fixed gradient condition,
thank you very much


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