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Old   January 24, 2012, 05:58
Default wall heat transfer
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enrico bighè
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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
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Old   January 26, 2012, 03:28
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Roman Thiele
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Quote:
Originally Posted by kikko View Post
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.
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Old   January 30, 2012, 05:08
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enrico bighè
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I have just set the fixed gradient condition,
thank you very much
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